Changing the number of vpfsd instances

A universal share uses one vpfsd instance by default. In most cases, one instance is adequate. Increasing the number of vpfsd instances might improve universal share performance, although it also requires more CPU and memory. You can increase the number of vpfsd instances from 2 to up to 16 and distribute the shares cross all the vpfsd instances.

To change the number of vpfsd instances for universal shares

Stop NetBackup on the media server.
systemctl stop netbackup
Or
/usr/openv/netbackup/bin/goodies/netbackup stop
Modify the number of vpfsd instances.
Change the numOfInstance value in the vpfsd_config.json file. The value must be an integer between 2 and 16. For example:
grep numOfInstance /msdp/vol1/etc/puredisk/vpfsd_config.json "numOfInstance": 2,
BYO (build-your-own): <storage path>/etc/puredisk/vpfsd_config.json
NetBackup Appliance and NetBackup Flex Scale: /msdp/data/dp1/pdvol/etc/puredisk/vpfsd_config.json
NetBackup Flex: /mnt/msdp/vol0/etc/puredisk/vpfsd_config.json
Start NetBackup on the media server.
systemctl start netbackup
Or
/usr/openv/netbackup/bin/goodies/netbackup start

Note:

NetBackup 10.3 uses separate vpfsd instance for malware scanning, hence at least 1 vpfsd instance must be reserved. The vpfsd instance for malware scanning can be configured by changing the value of numOfScanInstance. The value must be an integer between 1 and 4, and numOfScanInstance must be less than numOfInstance.

Check the deduplication ratio for the universal share or a folder in the universal share

Check the deduplication ratio for a universal share: /usr/openv/pdde/vpfs/bin/vpfs_metadump dedupe /mnt/vpfs_shares/<share_dir>/<share_id>

Check the deduplication ratio for a universal share folder: /usr/openv/pdde/vpfs/bin/vpfs_metadump dedupe /mnt/vpfs_shares/<share_dir>/<share_id> <sub_dir>

Example usage and output:

/usr/openv/pdde/vpfs/bin/vpfs_metadump dedupe /mnt/vpfs_shares/02b1/02b1e846-949f-5e55-8e39-e9900cd6a25e LT_0.1_20_1

File Name   File Size   Stored Size Overall Rate    Dedupe Rate Compress Rate
[INFO]: /LT_0.1_20_1/db_dump.1of14: 3043.42MB, 30.26MB, 99%, 93.31%, 85%
[INFO]: /LT_0.1_20_1/db_dump.2of14: 3043.42MB, 28.10MB, 99%, 93.94%, 84%
[INFO]: /LT_0.1_20_1/db_dump.3of14: 3045.02MB, 32.78MB, 98%, 92.82%, 85%
[INFO]: /LT_0.1_20_1/db_dump.4of14: 3044.93MB, 38.48MB, 98%, 91.44%, 85%
[INFO]: /LT_0.1_20_1/db_dump.5of14: 3044.93MB, 29.05MB, 99%, 93.78%, 84%
[INFO]: /LT_0.1_20_1/db_dump.6of14: 3044.93MB, 30.06MB, 99%, 93.45%, 84%
[INFO]: /LT_0.1_20_1/db_dump.9of14: 3043.42MB, 26.71MB, 99%, 94.27%, 84%
[INFO]: /LT_0.1_20_1/db_dump.8of14: 3043.42MB, 32.05MB, 98%, 93.07%, 84%
[INFO]: /LT_0.1_20_1/db_dump.10of14: 3043.42MB, 31.12MB, 98%, 93.36%, 84%
[INFO]: /LT_0.1_20_1/db_dump.12of14: 3044.93MB, 31.57MB, 98%, 93.13%, 84%
[INFO]: /LT_0.1_20_1/db_dump.11of14: 3044.93MB, 27.08MB, 99%, 94.23%, 84%
[INFO]: /LT_0.1_20_1/db_dump.7of14: 3043.42MB, 25.31MB, 99%, 94.65%, 84%
[INFO]: /LT_0.1_20_1/db_dump.13of14: 3044.93MB, 31.09MB, 98%, 93.33%, 84%
[INFO]: /LT_0.1_20_1/db_dump.14of14: 3044.93MB, 36.60MB, 98%, 91.79%, 85%
[INFO]: total size: 42620.06MB, stored size: 430.25MB, overall rate: 98.99%, 
dedupe rate: 93.33%, compress rate:84%
    [0K, 8K): 0.0%
    [8K, 16K): 0.0%
    [16K, 24K): 0.7%
    [24K, 32K): 0.5%
    [32K, 40K): 98.8%
[INFO]: total SO: 1368688, average SO: 31K

Changing the number of vpfsd instances

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