How to extend/increase the pool size of Media Server Deduplication Pool [MSDP] due to low disk space or disk full on Windows.

Article: 100025726
Last Published: 2023-11-12
Ratings: 0 4
Product(s): NetBackup & Alta Data Protection

Problem

How to extend/increase the pool size of Media Server Deduplication Pool [MSDP] due to low disk space or disk full on Windows.

Error Message

20-Jul-2011 9.38.05 - Error nbjm (pid=29802) NBU status: 213, EMM status: Storage units are not available. No storage units available for use (213)

20-Jul-2011 4.15.32 - Error nbjm (pid=29802) NBU status: 800, EMM status: Disk volume is down 20-apr-2011 4.15.32 - Error nbjm (pid=29802) NBU status: 800, EMM status: Disk volume is down media manager - system error occurred (174)

Cause

Disk pool is full.

Disk pool is down.

# nbdevquery -listdv -stype PureDisk -U

Disk Pool Name      : XYZ
Disk Type           : PureDisk
Disk Volume Name    : PureDiskVolume
Disk Media ID       : @aaaab
Total Capacity (GB) : 9999.34
Free Space (GB)     : 120.64
Use%                : 82
Status              : DOWN

Solution

 Perform the following procedure to move the deduplication data to a bigger disk:

1. If the new logical drive is larger than 16TB, format it with Allocation Unit Size higher than 4096 bytes (the default value for NTFS). For example, set it to 8192 bytes to allow maximum disk space of 32TB, or 16 kilobytes to allow up to 64TB.

The maximum supported deduplication disk size for NetBackup 7.x.x.x and 7.6.x.x is 32TB and 64TB, respectively.

2. Stop all Netbackup services by running: <install dir>\Veritas\NetBackup\bin\bpdown -v -f

3. Confirm all NetBackup services are stopped by running: <install dir>\Veritas\NetBackup\bin\bpps

4. Copy all deduplication data off the current Media Server Deduplication Pool drive and put it on the new logical drive.

5. As deduplication storage path cannot be changed once configured, the new drive must be given the same drive letter as the original drive. Rename the original logical partition/drive letter to something else (for example, from E: change it to T: assuming T: does not exist already).

6. Changed the drive letter of the new logical drive to match the original Media Server Deduplication Pool drive.

7. Start Netbackup services again by running: <install dir>\Veritas\NetBackup\bin\bpup -v -f

8. Launch NetBackup Administration Console and go to Media and Device ManagementDevices > Disk Pools to confirm NetBackup has picked up the new Available Space and Raw Size.

9. The expanded deduplication pool is now ready to use.


Additional information:

The default cluster size for NTFS, FAT, and exFAT:  https://support.microsoft.com/kb/140365
Veritas NetBackup 7.1 Deduplication Guide: see Related Articles
Veritas NetBackup 7.5 Deduplication Guide: see Related Articles
Veritas NetBackup 7.6 Deduplication Guide: see Related Articles

This is applicable for all releases.


Applies To

Supported Windows Operating System versions

Netbackup version: 7.x.x - 10.x 

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