We recently had some challenges with disk staging performance on Linux.
Basically we were only seeing disk destaging at only ~12MB/sec. This was using Sun/STK T10K tape drives, Prolient DL580 Server, and Clarion ATA disk. Tuning buffers was of no help, and testing showed the performance problem to be outside of netbackup.
In the end we found we could not get the performance using ext3. So we tested vxfs & foundation suite. Using vxfs made a significant difference. Along with tuning on both netbackup buffers and vxfs paramater to match our disk storage layout. We are now seeing destaging at 80MB/sec and up.
I was wondering if anyone else had the same experience? And if anyone solved it without resorting to vxfs/foundation suite?
Thanks
