SQL Backups running slow after upgrading to 7.1.0.2

[Vino_J]

Hi All,

Facing issues while backing up SQL database. The backup throughput has degraded drastically from 15 Mbps to 1 mbps.

Master/Media Server: Netbackup Enterprise Server - 7.1.0.2 (OS- Win 2008 R2 ,Enterprise Edition)

Client Server: Windows Cluster (both the nodes -OS- Win 2003 R2, 64 bit, SP2)

Server Copy for 3 Gb of data(flat file) completes in 7 mins, whereas as NT backup from client to target - share on Master is 18 mins and Basic Disk backup for the same is 17 mins.

If someone is aware / have come across the issue , please let us know how to resolve the issue.

[Mark_Solutions]

Hi

There is an issue in 7.1.0.2 in relation to SQL Servers that do not have a "Default" instance.

Although the tech note says it only relates to the SQL GUI crashing it may have a connection.

I have not come across anything else that would do this and would need to look at the logs in more depth to see if anything was obvious. Thech note below - EEB available upon request or workaround to downgrade the client to 7.1.0.2

http://www.symantec.com/docs/TECH160729

[Will_Restore]

Workaround:
Remove the 7.1 version of NetBackup from the client and install version 7.0.1.

 

[Vino_J]

Downgraded the NB client version to 7.0.1 and tested the backups.. No good. Still the same.. Any other solutions???

[Marianne]

Please see if Limit Bandwidth is enabled in Master Server Host properties.

If it is enabled for one subnet, ALL backups will be affected. Extract from 7.1 Release Notes:

■ Do not use a LIMIT_BANDWIDTH (IPv4) configuration or a THROTTLE_BANDWIDTH (IPv6) configuration in the initial release of
NetBackup 7.1. If you use either of these configuration options, you can encounter a sever performance degradation.
An EEB will be available to fix the issues.