Performance issue after changing from DP 6.20/LTO2 to DP 7.03/LTO4
we have recently changed from Data Protector 6.20 on a Windows Server 2003 Cell Server and a HP ThinStore 1/8 LTO2 autoloader attached to it to DP 7.03/Windows Server 2008 R2 and a brand new 1/8 G2 LTO4 autoloader.
As a result there are a couple of backup jobs that run slightly faster than before, most of them need about the same time as before but some need up to 3 times as long as before, especially jobs that backup a huge number of small files.
Does anyone know of a solution to this issue?
P.S. This trhead has been moved from Tape Backup (Small and Medium Business) to Data Protector Support and News Forum. - Hp Forum Moderator
Re: Performance issue after changing from DP 6.20/LTO2 to DP 7.03/LTO4
2 Further Ideas
One:- When these "some need up to 3 times as long as before, especially jobs that backup a huge number of small files." are running, check the memory usage on the W2008 R2 server. (Windows Task Manager, Performance tab).
Consider adding more memory.
Two:- There is a setting that can help W2008 R2 DP CMs (ver 7.0 or less) performance. In the rdmserver.ini file "[Engine]" section add, WindowsFileRandomAccessFlag=no Stop/Start DP. Use DP for a few days and see if performance has been improved. (In case performance is not improved, remove WindowsFileRandomAccessFlag=no from the rdmserver.ini)
By default rdmserver.ini lives in \ProgramData\OmniBack\db40\datafiles\catalog when DP 7.0 or 6.x runs on W2008 R2.
In case that does not help, some questions...
- Any difference between the OS of the clients, or OS of the Media Agents, between the jobs that are OK, or faster, and the ones that are now slow ?