When running Data Protector 6.20 together with a media agent installed on Windows 2008 sometimes you might have a bad backup performance. Sure, this was a known problem when DP 6.20 was launched and it was fixed with patch DPWIN_00516. If you still experience bad backup performance I recommend to again read the description for patch DPWIN_00516; there are a new omnirc variable – OB2IPCNOSENDRECVLOOP=1. When doing backups over the LAN, in addition you should set variable OB2SHMIPC=0 gesetzt to further increase you backup speed.
Hi Hasan,
in this case you have to put the variables on Cell Server / Media Agent. But, of course omnirc should also be configured for clients. On W2K8 the default location for omnirc is in c:\programdata\omniback.
Best regards
Daniel
Thank you Daniel,
All my servers are connected to SAN and we configured the environemnt for LAN Free Backup (Over SAN).
So we have Media Agent on all the clients. One of the servers have performance issue. If I put multiple objects and increase backup concurrency in my backup specification it goes well. (I put concurrency to 10 and defined 10 objects as well. they are all write to one LTO4 Drive). On server side I can see files are reading from my Hard Disk at 130 MB/s. However If I decreased the objects or concurrency backup would take more time. As an example with one object, my servers shows DP read data from Disk at 20 MB/S!! (Data stores on EVA6400). as much as increasing objects and concurrency, reading of data from disk gets better and backup process faster.
Do you have any Idea?
Hi Hasan,
sorry for the late answer… I would recommend to test the performance of this specific server using a Nulldevice and a single stream. You can also utilize HPCreateData and HPReadData to test the speed of your disk on the specific server.
Best regards
Daniel