buffer size and number

[Chris_Colvin]

My servers had their SIZE_DATA_BUFFERS & NUMBER_DATA_BUFFERS set years ago (before I ever used NBU).  I have some media servers set at 131072 for size and 32 for numbers, I also have some newer ones with no files, so they are using the defaults.  I'd forgotten about these two files until I had to add one for NDMP timeout problems. 

These are all big win2k3 servers with >=4GB RAM running 6.5.0.   Are these good numbers? 

Thanks

[Stumpr2]

Chris,

You will need to test on your environment. Get your benchmark and then make changes and monitor results in the bptm file.

PLEASE, remember to test restores after making changes.

[sdo]

Chris, I agree with Bob.  I strongly suggest that you confirm that you can restore from media that was written before *AND* after any tuning changes - I can confirm that "once bitten, twice shy" is applicable to NetBackup buffer tuning, especially when messing with SIZE_DATA_BUFFERS.

[Stumpr2]

Here is a good reference

Veritas NetBackup (tm) Enterprise Server / Server 6.0 Backup Planning and Performance Tuning Guide for UNIX, Windows, and Linux

http://support.veritas.com/docs/281842