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Manageability can be achieved through automation and the reduction of human manual intervention in common tasks. When data is first created, it often has the highest value and is used frequently. As data ages, it is accessed less frequently and is of less value to the organization. Understanding the information lifecycle helps to deploy appropriate storage infrastructure, according to the changing value of information. The objective of this article is to share the knowledge on RAID Technology and how the data will be written or restored when a disk fails.

To know about components of a storage system environment, refer the link below. The term RAID has been redefined to refer to independent disks, to reflect advances in the storage technology. There are two types of RAID implementation, hardware and software. Both have their merits and demerits and are discussed in this section. Software RAID. It is implemented at the operating-system level and does not use a dedicated hardware controller to manage the RAID array. Hardware RAID. A specialized hardware controller is implemented either on the host or on the array.

These sub-enclosures, or physical arrays, hold a fixed number of HDDs, and may also include other supporting hardware, such as power supplies. Logical arrays are comprised of logical volumes LV. Raid Levels. RAID levels are defined on the basis of striping, mirroring, and parity techniques. These techniques determine the data availability and performance characteristics of an array. All the data is spread out in chunks across all the disks in the RAID set. RAID 0 requires at least two physical disks. All the data is written to at least two separate physical disks. The disks are essentially mirror images of each other.

If one of the disks fails, the other can be used to retrieve data. Disk mirroring is good for very fast read operations. It's slower when writing to the disks, since the data needs to be written twice. RAID 1 requires at least two physical disks. The data is striped across all the disks in the RAID set; it achieves a good balance between performance and availability. RAID 5 requires at least three physical disks. The data is normally mirrored first and then striped. RAID Comparison. When deciding the number of disks required for an application, it is important to consider the impact of RAID based on IOPS generated by the application.

The total disk load should be computed by considering the type of RAID configuration and the ratio of read compared to write from the host. The following example illustrates the method of computing the disk load in different types of RAID. Consider an application that generates 5, IOPS, with 60 percent of them being reads.

The disk load in RAID 5 is calculated as follows:. The disk load in RAID 1 is calculated as follows:. The computed disk load determines the number of disks required for the application. If in this example an HDD with a specification of a maximum IOPS for the application needs to be used, the number of disks required to meet the workload for the RAID configuration would be as follows:.

Hot Spares. A hot spare takes the identity of the failed HDD in the array. Permanent and Temporary hot spare. This means that it is no longer a hot spare, and a new hot spare must be configured on the array. The hot spare returns to its idle state, ready to replace the next failed drive. Hello Guys,. Today I will let you know the detailed introduction to Symmetrix series and about it's journey.

First Generation : Second Generation: Symmetrix 3. Symmetrix 4. Symmetrix 5.

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Symmetrix DMX Generation 6. Symmetrix DMX-2 Generation 6. Symmetrix DMX-3 Generation 7. Symmetrix DMX-4 Generation 7. He is now probably one of the healthiest man in the storage industry. He quits EMC with a huge amount of money and some people told us that he got personally a percentage on each Symmetrix sold. Before leaving Big Blue, he was at the origin of another Israeli start-up, Axxana, being now one of its board's director. And the main - and apparently only - partner of this firm, in innovative zero loss disaster recovery, is Symmetrix was at the origin of the fast growing revenues for EMC and continues to be one of its flagship hardware products.

DMX Models. Symmetrix Optimizer -- Dynamical swap disks based on workload. Symmetrix command line interface SymmCli. Symmetrix remote console SymmRemote. FAST -- Fully automated storage tiering. FTS -- Federated tiered storage. Capacity: 3 GB. Symmetrix Elephant. Symmetrix Roadrunner. Symmetrix Jaguar. Symmetrix 4 Family - Series - Open Systems. Symmetrix 5 Family. Symmetrix Greywolf. Symmetrix Bison. Symmetrix 6 Family - Direct Matrix Architecture.

Symmetrix DMX Symmetrix DMX Leopard. Symmetrix DMX Panther. Symmetrix DMX Rhino. Symmetrix VMAX. To know about the history of EMC Symmetrix array, refer the link below. EMC Corporation. Hi All,. EMC was started in the late s, and raised rapidly through aggressive sales practices. By , EMC's customers involved 93 percent of Fortune financial institutions, 98 percent of the Fortune , and 90 percent of the Business Week There he worked on a team that helped to develop a guidance system for the Apollo lunar mission.

The device designed by Egan's team helped the space capsule to return safely to earth after landing on the moon. After graduation from MIT, Egan founded a company called Cambridge Memories, later known as Cambex, which manufactured storage devices for computers. Under Egan's leadership, this company's revenues grew into the multi-millions. After saying good-bye to Cambex, Egan worked as a technical consultant to other big computer firms, such as Honeywell.

Like Cambex, EMC's main product was devices that allowed computers to store information. Egan created circuit boards that could be installed in popular computer models, in order to dramatically increase a pre-existing computer's memory. In this way, EMC's products were able to extend the life of mini-computers, allowing users to upgrade and keep on using old equipment, rather than having to buy a new machine. Rather than put EMC's main stress on research and development or engineering expertise, Egan focused the company's energy on sales.

To fill out his staff, he recruited bright young college graduates who had played competitively on sports teams in school. In addition, to foster team spirit and competitiveness in his salesmen, Egan set up EMC's sales offices in a bullpen configuration. Different sales regions were designated by pennants, which indicated the relative standing of the regions. In the center of the room, a brass bell was hung. In contrast, EMC also strove to keep costs down in its engineering and technical support divisions. In the early s, such decisions brought EMC rapid growth, and the company became the subject of a case study used by students at the Harvard Business School.

The company's sales and profits continued to grow through the middle of the decade. By June , however, EMC's continued success had attracted the unfavorable notice of a competitor, and the company was sued for patent infringement by the Digital Equipment Corporation DEC which also made memory boards. In August of that year, the company also increased its offerings for the Hewlett-Packard computer. In May , EMC announced that it would offer stock to the public for the first time. The company planned to raise capital by selling 2.

In addition, EMC continued to introduce new products, announcing that it expected the bulk of its future growth to come from products designed to enhance the memory of large-scale and mid-range computers. Toward this end, EMC introduced a new class of products, disk drives, in mid The company rolled out a disk drive and controller for use in IBM compatible machines in June of that year, and, two months later, introduced an optical disk subsystem for use in DEC VAX computers, which boosted the storage capacity of these machines, as well as a similar system for use with machines built by the Prime Computer company.

Next, EMC augmented its line of disk drives for computers made by other companies yet again, when it rolled out a product designed to be used in Hewlett-Packard RISC-based Spectrum computers. By September , however, EMC had hit a hitch, as its new line of disk drives, which contained a small, inexpensive circuit board made by NEC Corporation, proved to be defective.

When problems with the drives arose, EMC's response was to ship out new disk drives to customers through overnight mail. Because the replacement drives, which were much more expensive, were bulky and delicate instruments, they had to be delivered and installed by an EMC employee. In order to make this possible, the company was compelled to maintain inventories of the replacement drives at all of its 23 regional sales offices.

In addition, its small staff of service representatives was severely taxed by the excess of problems. As a result of these conditions, EMC's cost of doing business rose dramatically. The company's low-overhead philosophy, which had kept its investment in technical and service areas low, meant that the company was not well prepared to cope effectively with the crisis of its defective disk drives. This reflected the fact that EMC felt compelled to keep shipping the problem drives, even after difficulties with the product had been identified, in order to keep up with sales targets.

EMC, which had experienced smooth sailing up until this point, came in for criticism as a result of these problems. The company's investors claimed that they had been kept in the dark and not notified early enough by EMC management about problems with the disk drives. In response to the difficulty with its disk drives, EMC's management made a number of changes. The company located two additional suppliers for the defective part made by NEC, and it also tried to beef up its engineering division. Responding to criticism that the company had focused on sales to the detriment of quality, Egan admitted that EMC should have tested the drives more thoroughly before shipping them out.

In June , EMC announced that it would raise the price of its products by five to 15 percent, due to the cost of the computer chips they housed. As EMC attempted to respond to the problems its rapid growth had engendered, the company continued to augment its product line. One month later, the company also introduced a solid state disk drive for use in IBM and model computers. In January , EMC responded to its falling financial returns by cutting costs, as the company reduced its staff by one-third, letting 60 people go.

This move was part of a larger shake-up directed by EMC management in the company's sales and engineering operations. Two months later, EMC introduced another new product, in an effort to shore up its sales. The company's latest disk drive offering was designed to be used with computers manufactured by the Wang company.

These products were designed to be used with IBM-compatible machines. Key Dates:. Additional Details. Symmetrix LUN Provisioning. Creating STD device. Meta device creation. Open a text file to create STD devices, by using the command. Execute the text file using symconfigure command with preview, prepare and commit options. Symconfigure -sid XXX -f "name of the text file" -v -noprompt preview. Symconfigure -sid XXX -f "name of the text file" -v -noprompt prepare. Symconfigure -sid XXX -f "name of the text file" -v -noprompt commit Verify the newly created devices by using the command Symdev -sid XXX list -noport 2.

Symconfigure -sid XXX -f "name of the text file" -v -noprompt commit. Verify the newly created meta devices by using the command Symdev -sid XXX list -noport Find the host connected directors and port details by using the command Symcfg -sid XXX list -connections Find the available addresses on that port by using the command Symcfg -sid XXX list -address -available -dir 6 d -p 1.

Mask the devices to the host HBA. Refresh the Sym configuration by using the command. Symmask -sid XXX -refresh. Atmos was organically developed by EMC Corporation and was made generally available in November A second major release in February added a "GeoProtect" distributed data protection feature, faster processors and denser hard drives. Avamar is a used for backup the data and it uses the backup-to-disk technology. The backup-to-disk technology is often supplemented by tape drives for data archival or replication to another facility for disaster recovery.

Additionally, backup-to-disk has several advantages over traditional tape backup for both technical and business reasons. Another advantage that backup-to-disk offers is data de-duplication and compression. The disk appliances offer either de-duplication at the source or at the destination. The de-duplication at the destination is faster and requires less performance overhead on the source host.

The de-duplication requires less disk space on the disk appliance as it stores only one copy of the possible multiple copies of one file on the network. Content-addressed vs. In a location-addressed storage device, each element of data is stored onto the physical medium, and its location recorded for later use.

The storage device often keeps a list, or directory, of these locations. When a future request is made for a particular item, the request includes only the location for example, path and file names of the data. The storage device can then use this information to locate the data on the physical medium, and retrieve it. When new information is written into a location-addressed device, it is simply stored in some available free space, without regard to its content.

The information at a given location can usually be altered or completely overwritten without any special action on the part of the storage device. A request to retrieve information from a CAS system must provide the content identifier, from which the system can determine the physical location of the data and retrieve it.

Because the identifiers are based on content, any change to a data element will necessarily change its content address. In nearly all cases, a CAS device will not permit editing information once it has been stored. Whether it can be deleted is often controlled by a policy. CloudBoost technology enables EMC NetWorker and Avamar users to reduce CapEx and eliminate tape in their environments by using a private, public, or hybrid cloud for long-term retention.

Specifically, NetWorker with CloudBoost and Avamar with CloudBoost enable long-term retention of monthly and yearly backups to the cloud.

CommVault Simpana 10 Overview & Vision

Data Domain:. The goal of the company was to minimize the tape automation market with a disk-based substitute. It did this by inventing a very fast implementation of lossless data compression, optimized for streaming workloads, which compares incoming large data segments against all others stored in its multi-TB store. Data Protection Advisor:. Sun Microsystems was a reference architecture and used by the majority of Greenplum's customers to run its database until a transition was made to Linux in the timeframe. Islion: Isilon is a scale out network-attached storage platform offered by EMC Corporation for high-volume storage, backup and archiving of unstructured data.

It provides a cluster-based storage array based on industry standard hardware, and is scalable to 50 petabytes in a single filesystem using OneFS file system. An Isilon clustered storage system is composed of three or more nodes. Each node is a self-contained, rack-mountable device that contains industry standard hardware, including disk drives, CPU, memory and network interfaces, and is integrated with proprietary operating system software called OneFS, which unifies a cluster of nodes into a single shared resource.

Isilon Systems was a computer hardware and software company founded in by Sujal Patel. Prosphere: EMC ProSphere is a cloud storage management software to monitor and analyze storage service levels across a virtual infrastructure. Built to meet the demands of the cloud computing era, ProSphere enables enterprises to enhance performance and improve storage utilization as they adopt technologies and processes for the cloud.

RecoverPoint continuous data protection CDP. RecoverPoint continuous remote replication CRR. It uses existing host-based internal storage to create a scalable, high-performance, low-cost server SAN. Storage professionals who face out-of-cont rol data-growth are loo king at SRM to help them navigate the storage environment. SRM identifies underutilized capacity, identifies old or non-critical data that could be moved to less-expensive storage, and helps predict future capacity requirements.

This product is the main reason for the rapid growth of EMC in the s, both in size and value, from a company valued hundreds of millions of dollars to a multi-billion company. Vblock had two series based on the following compositional elements. EMC provides storage and provisioning. Cisco provides compute and networking. VMware provides virtualization. Five months after the announcement, Invista had not shipped, and was expected to not have much impact until By , some analysts suggested the Invista product might best be shut down.

Click on the Create option located at the bottom left hand side. Repeat the same procedure for all the host WWN which we used while performing the zoning. If in these two tabs are showing as "Yes-Yes" it means the host is able to see the storage in other words the zoning which we done earlier is right.

If in case it shows as " Yes-No" then the host is not able to see the storage. This is the procedure to register the host initiators in the VNX Unisphere. To know about the VNX Installation and implementation, refer the link below. In 10K model maxi. In 10K, on each engine 2 cards are present; they are 2.

The card number is physically mentioned on the engine backside. On each engine we have this 2 cards, each card we have 6 Quad intel CPU with 2. Each of the quads is hypercode into 2 cores. VMAX 20K. Backend we have A, B, C, and D as directors. VMAX 40K. The others , , and together bunked out and act as back end directors. In 40K each back end port will have dedicate a core to manage the workload. Coming to cache installation on each engine, cache will be installed in the form of cache chips.

These cache will be participate in the global cache. In each engine the cache capacity is GB. VMAX 3. With VMAX 3, the industry leading tier 1 array has evolved into a thin hardware platform with complete set of rich software data services servicing internal and now external block storage. Single Engine SE. VMAX Series. Model comparison. We can configure maximum of 10 Storage Bays 5 on left and 5 on right side of the System Bay. Components of a Storage Bay:. Symmetrix V-Max arrays are configured with capacities of up to disk drives for a half populated bay or disk drives for a full populated bay.

Each Drive Enclosure includes the following components: redundant power and cooling modules for disk drives, two Link Control Cards, and 5 to 15 disk drive. In simple. As shown, the first engine in the System Bay will always be Engine 4 as counted starting at 1 from the bottom of the System Bay. In this example, Engine 4 has two half populated Storage Bays. One bay is directly attached and the second is a daisy chain attached Storage Bay. This allows for a total of drives.

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To populate the upper half of these Storage Bays with drives you will need to add another V-Max Engine. Foundations to Cloud Computing and Microsoft Azure. Cloud Computing. Uses of Cloud Computing. If you use an online service to send email, edit documents, watch movies or TV, listen to music, play games or store pictures and other files, it is likely that cloud computing is making it all possible behind the scenes. Here are a few of the things you can do with the cloud:.

With the help of Microsoft Azure we can a ny developer or IT professional can be productive with Azure. Cloud computing eliminates the capital expense of buying hardware and software and setting up and running on-site datacenters - the racks of servers, the round-the-clock electricity for power and cooling, the IT experts for managing the infrastructure.

It adds up fast. Most cloud computing services are provided self service and on demand, so even vast amounts of computing resources can be provisioned in minutes, typically with just a few mouse clicks, giving businesses a lot of flexibility and taking the pressure off capacity planning. The benefits of cloud computing services include the ability to scale elastically. In cloud speak, that means delivering the right amount of IT resources—for example, more or less computing power, storage, bandwidth—right when its needed and from the right geographic location.

Cloud computing removes the need for many of these tasks, so IT teams can spend time on achieving more important business goals. The biggest cloud computing services run on a worldwide network of secure datacenters, which are regularly upgraded to the latest generation of fast and efficient computing hardware. This offers several benefits over a single corporate datacenter, including reduced network latency for applications and greater economies of scale. Most cloud computing services fall into three broad categories: infrastructure as a service IaaS , platform as a service PaaS and software as a service Saas.

These are sometimes called the cloud computing stack, because they build on top of one another. Knowing what they are and how they are different makes it easier to accomplish your business goals. I nfrastructure as a service IaaS is an instant computing infrastructure, provisioned and managed over the Internet. Quickly scale up and down with demand and pay only for what you use.

IaaS helps you avoid the expense and complexity of buying and managing your own physical servers and other datacenter infrastructure. Each resource is offered as a separate service component and you only need to rent a particular one for as long as you need it. Platform as a service PaaS is a complete development and deployment environment in the cloud, with resources that enable you to deliver everything from simple cloud-based apps to sophisticated, cloud-enabled enterprise applications.

PaaS is designed to support the complete web application lifecycle: building, testing, deploying, managing and updating. PaaS allows you to avoid the expense and complexity of buying and managing software licenses, the underlying application infrastructure and middleware or the development tools and other resources. You manage the applications and services you develop and the cloud service provider typically manages everything else.

Software as a service SaaS. Software as a service SaaS allows users to connect to and use cloud-based apps over the Internet. Common examples are email, calendaring and office tools such as Microsoft Office You rent the use of an app for your organisation and your users connect to it over the Internet, usually with a web browser. The service provider manages the hardware and software and with the appropriate service agreement, will ensure the availability and the security of the app and your data as well. SaaS allows your organisation to get quickly up and running with an app at minimal upfront cost.

Microsoft Azure will provide youa total Packaged Software kit, from which we can choose according to our project environment purpose. The above picture explains that - Under IaaS, the green color services are supported by Microsoft Azure and blue colored services are supported by you. Under PaaS, the green color services are supported by Microsoft Azure and blue colored services are supported by you.

Under SaaS, all the packaged software kit is supported by Microsoft Azure. Some other examples of resources that are not necessarily you know things you deploy on Azure. The marketplace, anyone can build a solution for the Azure marketplace. So if you were a company and you have a product you can sell that product through the Azure marketplace.

You simply need to build it, you apply it, it gets certified, gets tested and checked and so on and its added to the marketplace. Introduction to Azure. What is Azure? Uses for Microsoft Azure. Microsoft Azure offers many services and resource offerings. For example, you can use the Azure Virtual Machines compute services to build a network of virtual servers to host an application, database, or custom solution, which would be an IaaS based offering.

Other services can be categorized as PaaS because you can use them without maintaining the underlying operating systems. Here, you just set up your management tools and connect into the services you wish to manage all through Microsoft Azure, so no local infrastructure is required or needed to be managed. The Microsoft Azure platform is responsible for all of that and provides direct access to the Management software. Microsoft Azure provides lots of services which fall into IaaS, PaaS or SaaS contexts and these services are constantly being added to and evolving.

Other Azure Resources. This page briefly describes those options with links to relevant sites for more information. Azure Marketplace. You can search for and purchase solutions from a wide range of startups and independent software vendors ISVs. VM Depot. There are various paid options for businesses.

Azure Trust Center. If you invest in a cloud service, you must be able to have confidence that your customer's data is secure, the privacy of the data is protected, and you comply with whatever government and regulatory controls are required. Considerations in Moving to a Cloud Model. Providing a third party with data and business sensitive information requires a lot of trust. Typically, businesses take time to build up a relationship with cloud providers and evaluate their trustworthiness and ability to deliver what they promise. Login to the filer with the Putty session.

To check the available space in the aggregate, run the command. To create a volume of size 10 GB, run the command. To check the snap schedules are created, run the command. To change to zero, run the command. To create a Qtree, run the command. To check the Qtree security, run the command. To change the volume security style to NTFS, run the command. To check the security status, run the command. To check the Qtree status, run the command.

To create a cifs share, run the command. To provide user access to the cifs share as full control, run the command. Right click on the created share and select the properties option. Go to security tab and click on edit option. Click on add option to entry the user or groups id details to access the share and at last click on OK. Azure Data Centers and Services. Azure services are hosted in physical Microsoft-managed data centers throughout the world. Microsoft Azure provides cloud services for accomplishing various tasks and functions across the IT spectrum and those services can be organized in several broad categories.

There are services for different usage scenarios and a wide range of services that can be used as building blocks to create custom cloud solutions. Compute and Networking Services. Azure Virtual Networks - Provision networks to connect your virtual machines, PaaS cloud services, and on-premises infrastructure. Azure ExpressRoute - Create a dedicated high-speed connection from your on-premises data center to Azure. Traffic Manager - Implement load-balancing for high scalability and availability.

Storage and Backup Services. Azure Backup - Use Azure as a backup destination for your on-premises servers. Azure Site Recovery - Manage complete site failover for on-premises and Azure private cloud infrastructures. Identify and Access Management Services. Azure Multi-Factor Authentication - Implement additional security measures in your applications to verify user identity.

Web and Mobile Services. Azure Websites - Create scalable websites and services without the need to manage the underlying web server configuration. Mobile Services - Implement a hosted back-end service for mobile applications that run on multiple mobile platforms. Notification Hubs - Build highly-scalable push-notification solutions. Event Hubs - Build solutions that consume and process high volumes of events. Data and Analytics Services.

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  • SQL Database - Implement relational databases for your applications without the need to provision and manage a database server. Azure Redis Cache - Implement high-performance caching solutions for your applications. Azure Machine Learning - Apply statistical models to your data and perform predictive analytics. Azure Search - Provide a fully managed search service. Media and Content Delivery Services. Azure Media Services - Deliver multimedia content such as video and audio. Azure CDN -Distribute content to users throughout the world. Azure BizTalk Services -Build integrated business orchestration solutions that integrate enterprise applications with cloud services.

    Azure Service Bus - Connect applications across on-premises and cloud environments. Grouping and Colocating Services. Grouping Related Services. When provisioning Azure services, you can group related services that exist in multiple regions to more easily manage those services. Resource groups are logical groups and can therefore span multiple regions. Colocating Services by Using Regions. Although resource groups provide a logical grouping of services, they do not reflect the geographical location of the data centers in which those services are deployed.

    You can specify the region in which you want to host those services. This is known as colocating the services and it is a best practice to colocate interdependent Azure services in the same region. In some cases, Azure will actually enforce the colocation of services where a resource in that same region would be required. To know about Cloud computing. Commvault Backup Technology Foundation. Commvault software is an enterprise-level data platform that contains modules to backup, restore, archive, replicate, and search data.

    It is built from the ground-up on a single platform and unified code base. The latest version of this document, along with other integration-related documents, under Integration Documentation. Hardware driver versions View Data Domain application integration documents 1. Log into the support portal at: 2. To view user documents, click Product Documentation and then perform the following steps: a. Select the Data Domain model from the Platform list and click View.

    Click the desired title. To view CommVault Simpana integration-related documents, perform the following steps: a. Click Integration Documentation. Select CommVault from the Vendor menu. Select the desired title from the list and click View. To view compatibility matrices, perform the following steps. Click Compatibility Matrices. Select the desired title from product menu and click View. Simpana provides backup, recovery, archive, and disaster recovery options to protect enterprises against data loss.

    The Simpana software suite is a modular application that lets the administrator pick specific client agents that support their organization s data types, such as Microsoft Exchange and Sun Solaris files. The first Simpana system installed must be configured as a CommServe. A CommServe defines a backup domain called a CommCell that manages member Media Agents, Clients, and data protection storage resources. The CommServe contains a SQL database that keeps track of the various agents and data protection metadata, such as the media index.

    Note: This document does not describe the Simpana Archive product for nearline storage. Note: The illustrations and procedures in this manual come from Commvault Simpana 8. The illustrations and procedures for previous versions, known as CommVault Galaxy, are similar. This system must contain the CommServe that defines the CommCell. To install the software on a Windows system: 1. Launch the setup.

    Select Install Simpana on this Computer for a local installation. Use the cvpkgadd script that is included on the media to install the software.

    CommVault Simpana Application Introduction - PDF

    For details on how to install CommVault software and options, refer to the documentation available at Concepts and Terms Table 1: Terms The following Data Domain and CommVault-specific concepts and terms are used in this document. The auxiliary copy operation can be useful for creating additional standby copies of data. A group of subclients. There is a default backup set created with most idataagents that backs up all data associated with an idataagent.

    Media Agents can write to media using different block sizes, if the Operating System associated with the Media Agent in which the library is configured supports a higher block size. The system can write block sizes up to KB and can automatically read block sizes up to KB.

    A chunk is the unit of data that the Media Agent software uses to store data on magnetic media, such as a magnetic library. For sequential access media such as tape, a chunk is defined as the data between two file markers. The default chunk size for file system idataagent data is 4 GB. The default chunk size for data associated with databases is 16 GB. For Random access media each chunk is a file on the disk. The default chunk size is 2 GB. Any computer host that has one or more idataagents installed. You access the Console either directly from the desktop of the CommServe or through a system in the CommCell that has the Console package installed.

    The set of base-level CommVault Simpana software components used to administer client agents and storage media. The coordinator and administrator of the CommCell component. The CommServe communicates with all agents in the CommCell to initiate data protection, management and recovery operations.

    Similarly, the CommServe communicates with Media Agents when the media subsystem requires management. In addition, the CommServe provides several tools to administer and manage the CommCell components. A standalone Data Domain storage appliance or gateway. The combination of a Media Agent, Library, Drive Pool, and Scratch Pool used by the storage policy copy to perform a data protection operation. Each storage policy copy has a default data path that gets used to perform data protection operations.

    In addition, you can also define alternate data paths in each of the storage policy copies to handle situations when one of the data path elements fails. The Data Domain deduplication engine A computer with an agent whose data is backed up to a CommVault Media Agent server and that has the appropriate client agent software installed. Traditional zip compression applied to Data Domain data as it arrives on the disk. A location within a magnetic library where software can write backup data. A mount path is analogous to a tape drive in a tape library. The data protection operation that creates the first copy of a backed-up data set.

    The system creates the primary copy automatically when a storage policy gets created. All data protection operations that use a given storage policy use the primary copy. Each copy definition contains retention policies, data path definitions, media specific policy settings, and data verification settings. An additional copy of a protected data set that gets used, for example, in auxiliary copy operations or in other data protection operations that create inline copies.

    A virtual library associated with one or more mount paths. Magnetic libraries enable direct disk access for faster and easier recovery of data. A shared magnetic library allows multiple CommVault Media Agents access to the same mount paths. The system supports multi-read and multi-restore access to backed-up data. Storage policies control how storage resources can be used. There are two types of storage policies: Data Protection and Archiving CommServe DR At least one primary copy, library storage resource, and Media Agent must be assigned to each storage policy. A storage policy also controls retention time, streams, and deduplication settings.

    A SubClient is a single backup definition that specifies: What to back up within a data set on the client The idataagent type The storage device to be used You can define multiple SubClients for each idataagent and associated backup set. Hard disk storage that gets presented to the backup software as tape libraries. Typically the CommCell Console software gets installed on a management host that has access to all of the Simpana CommCells, but you can install the CommCell Console software on any host in the CommCell. Figure 1 shows an example of a CommCell Console window. The Connect to CommCell window appears.

    Enter the username and password to access the CommCell that you select from the drop-down list. The CommCell Console Figure 1 appears. Storage Policy Description A storage policy manages storage resources that include copy definitions. There are two types of storage policies: Data Protection and Archiving CommVault Simpana Disaster recovery Each storage policy must include at least one copy definition.

    A copy definition describes a data protection operation that includes information such as a retention policy, data paths, and data verification settings for each associated subclient. You define a storage policy on the Storage Device tab of the subclient Figure 7 on page The first copy made from a storage policy is called a primary copy. The CommVault Simpana software uses days and cycles to define the retention period within a storage policy.

    A cycle is defined as a full backup to a full backup. For example, if you want to retain data for four weeks with daily incremental backups and weekly full backups, configure the retention period as three cycles and 30 days. With this configuration, there would always be four full backups on the Data Domain system. Each client idataagent contains one or more Backup Sets.

    A backup set can be thought of as a group of subclients. Each subclient contains a backup job definition which has paths to source data and a storage policy. A backup job can get launched from a backup set or a specific subclient within a backup set either automatically on a schedule or on demand. Figure 2 shows an example subclient. Figure 2: Subclient configuration dialog box 14 CommVault Simpana 8. For example, replication is a separately licensed feature for a Data Domain system, and Shared Magnetic Libraries with Static Mount paths are a separately licensed feature for the CommVault Simpana software.

    To view Data Domain system installed licenses 1. Connect to the Data Domain Enterprise Manager. Select Licenses. From the CommCell Console, click Tools menu item. Select and click Control Panel. The Control Panel window appears with an icon for each task. Double click License Administration to view and add licensees. The License Administration window appears with four tabs. The License Summary tab contains a brief report on the license information. The License Details tab contains a detailed list of all installed licenses and their attributes.

    The Update License tab allows the selection of a license file and a convert utility to convert evaluation licenses to permanent licenses. There is also contact information to purchase new licenses on the Purchasing tab. Create CommVault administrative user account with proper privileges. Changes made by other accounts, regardless of permissions, may cause read or write errors for the service account. Also be aware that the Data Domain system might not be a member of a Windows domain. Set the tape marker setting for Simpana and restart the file system.

    The example shows how to set the marker type to auto. If the Data Domain system will only be a target for Simpana backups, use the cv1 marker setting instead. The filesystem must be restarted to effect this change. The filesystem is now disabled. The filesystem is now enabled. Verify that the marker setting is enabled. For details, please read the how-tos in the CommVault Simpana online documentation. A CommVault Media Agent server is any system that has the idatamediaagent installed. Install at least one CommVault Media Agent.

    Add the Media Agent to the CommCell. The benefit to using a shared magnetic library is that you can execute restores from any media agent that has share privileges. The CommCell Console is used for all of the described tasks that follow. Double click Library and Drive Configuration. The Select MediaAgents dialog box appears. The Library and Drive Configuration window appears.

    Specify the network path and a valid user, and then click OK. In an Active Directory environment, the user must be a valid Active Directory user. In a Workgroup environment, the user must be a local account on the Data Domain system. The new Shared Disk Device will appear in an unconfigured state. Right click the Network Sharing Device and select Configure. After a few moments, the new Shared Disk Device will appear as configured. This step saves the configuration; if you skip this step, the configuration gets discarded when you exit.

    Right click the new Shared Disk Device and select Properties. This completes the creation of a new Static Shared Disk Device Data Domain highly recommends this option so that you can add replication easily in the future. This lets storage be shared and frees restore operations from relying on a single media agent. The Add Magnetic Library dialog box appears.

    Specify an alias, optionally select Automatically create storage policy for new data paths, and then click OK. The Shared Mount Path dialog box appears. Select the disk device to associate as the mount path from the Disk Device field and click OK. Note: The Base Folder is where the mount path can store data.

    The mount path gets added to the shared magnetic library and the new shared magnetic library appears in the Library and Drive Configuration dialog box. Optionally, add more Shared Mount Paths by following the previous two steps. Close the Library and Drive Configuration window.

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    This completes the configuration of the Shared Magnetic Library. All Filesystem idataagents have a defaultbackupset group for each client. Most other idataagents follow this same pattern. The defaultbackupset group contains a default subclient that will backup all data on the client. To prepare Simpana for a scheduled backup, follow the all of the steps below. Note: Do not use multiplexing and avoid synthetic full backups when you use a Data Domain system as a backup target. Create a backup storage policy This procedure creates a storage policy for a shared magnetic library.

    Disable any deduplication and compression options for the storage policy. The Storage Policy Wizard appears. Select Data Protection and Archiving on the first page of the wizard and click Next. Keep the default value of No for Legal Hold and click Next. Add a storage policy name and click Next. Enter a name for the Primary Copy and click Next. Select a Library to associate with the primary copy and click Next. Select a Media Agent and click Next. Set the number of Device Streams and define the primary copy aging rules, and then click Next. The default number of device streams is 1 and the default retention policy is infinite.

    Disable deduplication for the primary copy. This is critical for obtaining optimal compression results from the Data Domain system. See Figure 5. Click Next to continue through the wizard. Deselect the Hardware Compression setting for the primary copy as shown Figure 6 and click Next. Review the information on the final page of the wizard and click Finish to create the policy. The new policy appears in the CommCell Browser window.

    Otherwise, the changes do not take effect and, for older versions of the CommVault Galaxy software, you cannot change Create a backup schedule policy Create a Data Protection type Schedule Policy that contains a pattern of full or incremental backups or both , idataagents, and alerts. For help creating a backup schedule policy, refer to the CommVault Simpana documentation. Create a backup set A backup set is a group with one or more subclients. The Create New Backup Set dialog box appears. If you have already created a Schedule Policy, you can select it from the Associate with Generic Schedule Policy list.

    Create a subclient Under Client Computers create a new subclient under the newly backup set for a particular client.

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    The Subclient Properties dialog box appears. Enter a Subclient name on the General Tab. Accept the defaults for all of the other fields. Select the Content Tab. This is where you select the source data from the client. Click Browse to add folders and files. If you know the exact path, you can select Add Paths. After you click Browse, the Browsing content dialog box appears. Select a source folder or file and click Add. Repeat this process for each file or folder that you want to back up. Check the results in the Content Tab, Contents of subclient dialog box.

    When you finish selecting source files, click the Storage Device Tab of the Subclient Properties dialog box. In this example, BackupToDataDomain is selected. View the Data Paths by clicking the Data Paths section. See Figure 8. See Figure 9. Check the new subclient by clicking on the backup set name in the CommCell Browser. Note: You must disable all compression options under the Storage Device tab for optimal Data Domain system global compression. Increase the Chunk Size and Block Size For optimal Data Domain Magnetic Library performance and improved compression, increase the chunk and block sizes immediately after creating a new Storage Policy.

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    These terms are defined in the Concepts and Terms section. The chunk size can be applied globally to a Media Agent or locally to a specific data path. The local data path settings will override the Media Agent setting. The block size can only be applied to a data path. Note: Set the chunk size for the Data Domain system by using a data path so that the chunk size settings do not get changed globally for existing backup targets that are being managed by a particular Media Agent. Right click the new storage policy and select Properties. Right click Primary Copy and select Properties.

    The Copy Properties: Primary Copy dialog box appears. Click the Data Paths tab. See Figure Figure Copy Properties: Primary Copy dialog box 5. Select a path and click Properties. Use a Chunk Size a value of kb. Use a minimum Block Size a value of kb. Set the Data Path Properties for all of the storage policies that you created with new data paths that reference the Data Domain system. Perform a test full backup job after the values have been modified.

    Data multiplexing offers no benefits when working with disk media. Moreover, multiplexing of data that is being written to Data Domain systems yields poor compression results. There should be at least one primary copy present. Right click the desired copy name and select Properties from the context menu.

    The Copy Properties dialog box appears. Click the Media tab and confirm that the Enable Multiplexing setting is not selected, as shown in Figure By default, cleaning occurs on Tuesdays at am. This updates the CommServe database with information about which data should get expired. By default, a data ageing and pruning process runs daily on the CommServe. On the Data Domain system, there is a default weekly cleaning process.

    Data Domain recommends that you let both of these automatic processes run. To manually start a job pruning process 1. The Job Filter for Storage Policy: dialog box opens. Select the appropriate search parameters and click OK. Select the jobs that you want to prune and click Prune Job. In newer versions of the Simpana software, you must also select the media. Select the desired media and then Delete Contents from the media context menu to prune. Note: Job pruning or content deletion will only remove the job permanently from the CommServe database. This process will not delete the backup files from the Shared Magnetic Library.

    Schedule or manually start a Data Aging process on the CommServe after the pruning operation finishes. This expires the backup data and prepares it for deletion on the Data Domain system. To run the Data Aging job manually: a. Select Run Immediately for an unscheduled Data Aging process. By default, Simpana data aging happens once per day at pm. At the next scheduled cleaning cycle, the data will be deleted from the Data Domain system and the space will become available for future backup jobs Expired Simpana tape volumes will not be automatically deleted from the Data Domain system.

    The default policy will have them recycled and placed in a scratch pool for future use. Data Domain recommends that you schedule media recycling to occur automatically. By default, new media in the library will be used prior to existing recycled media. Erasing media manually in Simpana is a two step process. First the tape media must be removed as assigned media in the SQL database to mark the backup data as expired. Second, the media with the newly expired data must be long erased. To have the Data Domain system reclaim space manually 1.

    The Job Filter for Storage Policy dialog box appears. Select the appropriate search criteria and click OK. Right click a particular media and select Delete Contents. Read the warning dialog box and click Yes to continue. Enter the text that the dialog box requests and click OK. The Delete Contents and Move Media dialog box appears. By default the Default Scratch media pool is selected 7. Click OK to delete the contents.

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    The media gets moved from the Assigned Media group to the selected Scratch media pool. Repeat these steps for each media that you want to expire for the selected job. Select the Default Scratch media group. The media appears in the Default Scratch tab. Right click the desired media and select Erase Media. After a few moments, the media gets loaded into a free Data Domain virtual tape drive and erased. Figure Erasing media in the Default Scratch media group Figure Virtual tape ready to be recycled At the next scheduled cleaning cycle, the data will be deleted from the Data Domain system and the space will become available for future backup jobs.

    While those jobs run, observe their progress and check for errors. Note: To check a group of subclients simultaneously, perform a backup at the Backup Set level. To start a backup operation 1. Select the backup set in the CommCell browser. A list of subclients appears on the right side of the CommCell Console window.

    Right click the subclient and select Backup. The Backup Options for Subclient dialog box appears. Figure Backup Options for a Test 4. Set the backup options and click OK. In Figure 17, a Full backup is selected to Run Immediately. When the backup job finishes, the status appears in the Event Viewer box below the Job Controller box. The Browse Options dialog box appears. Select the latest data, or specify the time window, and click OK. Figure Restorable Files for a Client 4.