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NetVault SmartDisk 11.4.5 - Installation Guide

Introducing NetVault SmartDisk Understanding NetVault SmartDisk architecture Planning your NetVault SmartDisk deployment Installing NetVault SmartDisk Licensing NetVault SmartDisk Completing the installation process Uninstalling NetVault SmartDisk Reinstalling NetVault SmartDisk Upgrading NetVault SmartDisk Troubleshooting

Components

NetVault SmartDisk includes the following components:

NetVault SmartDisk Instance

A Quest NetVault SmartDisk Instance includes one or more Storage Pools and a set of processes that perform disk-based backups; byte-level, variable-block software deduplication; and Garbage Collection. You can deploy a single NetVault SmartDisk Instance on a dedicated server, or a different server or client, and it can accept data streams from heterogeneous platforms. In addition, you can deploy multiple NetVault SmartDisk Instances to distribute network, disk, and deduplication resources, which improves load balancing and performance. When multiple NetVault SmartDisk Instances are deployed, Storage Pools and processes are not shared across the multiple NetVault SmartDisk Instances.

NetVault SmartDisk Storage Pools

A Quest NetVault SmartDisk Storage Pool includes one or more file-system volumes, which you can easily extend by adding more file-system paths. Each Storage Pool is associated with roles that it can perform. When configuring the Storage Pool, you can specify the preferred roles or the roles not allowed. Available roles include the Content Index (also referred to as Disk Index), Staging Store (also referred to as Staging), Chunk Index, and Chunk Store (also referred to as Storage). For example, Storage Pool A is used for the Content Index and the Chunk Index while Storage Pool B is only used for the Staging Store and Chunk Store. Storage Pool A can include fault-tolerant disks with good random-access performance, while Storage Pool B includes fault-tolerant disks with good streaming performance. When NetVault SmartDisk is analyzing the available Storage Pools, it chooses the optimal Storage Pool to use based on available space, the defined roles, and other current activity in the NetVault SmartDisk Instance.

Content Index: The Quest NetVault SmartDisk Content Index role is the index where the NetVault SmartDisk Instance tracks the data it is protecting and whether it is stored in the Staging Store or the Chunk Store. The Content Index is relatively small and should reside in a Storage Pool made of fault-tolerant disks with good random-access performance.
Staging Store: The Quest NetVault SmartDisk Staging Store role is where all nondeduplicated data streams are stored, whether they are awaiting post-processing deduplication or were not selected for deduplication. Data streams that were selected for deduplication are deleted from the Staging Store after the post-processing deduplication is completed. The Staging Store should reside in a Storage Pool made of fault-tolerant disks with good streaming performance.
Chunk Index: The Quest NetVault SmartDisk Chunk Index role is a list of the unique Chunks and where each Chunk is stored in the Chunk Store. There is one Chunk Index per NetVault SmartDisk Instance. The Chunk Index should reside in a Storage Pool made of fault-tolerant disks with good random-access performance.
Chunk Store: The Quest NetVault SmartDisk Chunk Store role is where the unique Chunks are stored. The Chunk Store should reside in a Storage Pool made of fault-tolerant disks.

Manifests

Stored in a NetVault SmartDisk Storage Pool, a Quest NetVault SmartDisk Manifest is an ordered list of the Chunks that make up the data stream. It is used during the reconstruction of the data stream to ensure that the Chunks are reconstructed in the correct order. There is one Manifest per data stream.

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