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vRanger 7.8.5 - Integration Guide for NetVault SmartDisk

Getting started Understanding NetVault SmartDisk Planning your NetVault SmartDisk deployment Installing vRanger Installing NetVault SmartDisk Configuring NetVault SmartDisk Monitoring NetVault SmartDisk

Reviewing the list of NetVault SmartDisk statistics

When reviewing the following list of statistics, a backup job is divided into a minimum of two segments: Segments contain either data or metadata and are smaller than 400 GB. For example, if the backup data stream is 1200 GB, the backup job has three data segments. One NetVault SmartDisk element is equivalent to one backup segment.

NOTE: The status of the Chunk Store Daemon (CSD) affects the list of statistics displayed for the Dedupe:StatusSubsys segment.
Table 1. Statistics

Statistics for the process that schedules deduplication activity.

Number of segments awaiting deduplication.

Number of bytes awaiting deduplication.

Number of elements or backup segments currently deduplicating.

Total size of elements or backup segments currently deduplicating. After all current deduplication completes, the equivalent amount of data is removed from the Staging Store.

Indicates whether Garbage Collection is active.

Displays TRUE or FALSE depending on whether the CSD is available for deduplication tasks.

Displays TRUE or FALSE depending on whether the data-deduplication option is licensed and enabled.

Statistics for the process that interacts with your backup software.

Indicates how available a backup server should consider this NetVault SmartDisk Device to be. The lower the number, the less available the NetVault SmartDisk Device is. Given a choice of two NetVault SmartDisk Devices to target a backup job to, your backup software might choose the one with the higher Availability Score. The score takes the following into account:

Total megabytes per second (MBps) across all streams being sent out from NetVault SmartDisk to your backup software; that is, when a restore job is being performed.

Total MBps across all streams being sent to NetVault SmartDisk; that is, when a backup job is targeted to an NetVault SmartDisk Device.

Machine ID = <3-XXXX-XXX>

Machine ID of the NetVault SmartDisk Instance that is used to obtain a permanent license key.

Current maximum number of data streams or backups that your backup software can target to this NetVault SmartDisk Device simultaneously.

Version = <NetVaultSmartDiskVersion>

NetVault SmartDisk version

Build Level = <NetVaultSmartDiskBuild>

NetVault SmartDisk build

Statistics for the NetVault SmartDisk Task Manager.

Total number of active NetVault SmartDisk operations.

Current number of backup segments being read.

Current number of backup segments being written.

Current number of backup segments being deleted.

Not currently used.

Not currently used.

Not currently used.

Not currently used.

Not currently used.

Not currently used.

Not currently used.

Statistics for the NetVault SmartDisk Deduplication Processes.

Current number of chunk pages stored on disk. A chunk page is a storage object or file that contains several chunks. Chunk pages are typically 64 MB.

Total number of unique chunks stored in the Chunk Store of this NetVault SmartDisk Device.

Total number of bytes on disk used by the Chunk Index.

For use by Quest Support, if necessary.

Total number of elements or backup segments that have been deduplicated.

Total number of bytes used by a volume’s catalog.

Total number of bytes on disk used by deduplicated data. Includes the bytes consumed by the Chunk Store, Chunk Index, and Manifests.

Number of bytes that NetVault SmartDisk must keep available on a file system to guarantee that Garbage Collection can take place. Increases as the size of the Chunk Store increases.

Total number of bytes submitted for deduplication.

Total number of bytes submitted for deduplication since the NetVault SmartDisk Services were started. When a backup is retired, the size of the backups is not deleted from csd.stream_bytes.

Total number of bytes of unique chunks stored since the NetVault SmartDisk Services were started.

Indicates whether Garbage Collection is happening.

The phase of Garbage Collection that is occurring.

Time stamp that indicates when Garbage Collection was last completed successfully.

status = <currentStatus>

Status reported by the CSD; includes Available, Unavailable, and NotConfigured. Used to determine whether the CSD is available for deduplication tasks and whether space is available.

Total number of bytes available for storage of deduplicated data.

Statistics for NetVault SmartDisk Disk Storage.

Location of the Staging Store volume used for the Content Index.

Displays TRUE or FALSE depending on whether the location is fixed (TRUE) or can be moved to another location (FALSE) by using the ‑‑favour and ‑‑deny options. For more information on the favour and deny options, see Extending NetVault SmartDisk Storage Pools.

Number of elements or backup segments currently residing in the Storage Pools.

Data = <No.>, B

Amount of data, in bytes, currently residing in the Storage Pools.

Amount of data, in bytes, that has completed the write-to-disk process.

Number of GB that NetVault SmartDisk is licensed to protect.

Number of bytes available across all configured NetVault SmartDisk Storage Pools; reported by the operating system.

Number of bytes available across all configured NetVault SmartDisk Storage Pools.

Status of NetVault SmartDisk Staging Store; includes Available, Full, Unlicensed, and License Exceeded.

Number of bytes available for Staging Store across all configured NetVault SmartDisk Storage Pools.

Number of elements or backup segments currently residing in the Staging Store.

Amount of data, in bytes, currently residing in the Staging Store.

Number of elements or backup segments processed by NetVault SmartDisk since its implementation.

Total amount of data, in bytes, processed by NetVault SmartDisk since NetVault SmartDisk was installed.

Total amount of data, in bytes, that has completed the NetVault SmartDisk write-to-disk process since NetVault SmartDisk was installed.

Calculating the Deduplication Ratio

Use the following calculation to determine the NetVault SmartDisk Deduplication Ratio for the data that has been protected by NetVault SmartDisk:

Use the following calculation to determine the NetVault SmartDisk Deduplication Ratio for the data that has been protected by NetVault SmartDisk since the NetVault SmartDisk Services were started:

For information on viewing NetVault SmartDisk statistics in your backup software, see the documentation that came with your product.

Calculating the reduction in the storage footprint

The NetVault SmartDisk Deduplication Option reduces the storage footprint required to store the protected data. To calculate the reduction in the storage footprint that NetVault SmartDisk is providing for protected data, use the following calculation:

 

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