Hello collegaues, can anybody help?
In our backup system we have 3 media servers (2 Solaris 9 and 1 HP-UX 11.11), connected through 2GB SAN with IBM 3584 L32 (5 3580 LTO2 drives). Performance of backup on all media servers only 35MB/s per drive. Seems, that is native (not compressed) data rate for 3580 LTO2 drives. Disk array - not a bottleneck, command: dd if=/dev/zero of=/dev/rmt/0cbn bs=5242880 gives the same rate (~35MB/s). SAN is not a bottleneck too (there are not alerts in Brocade messages). Seems like IBM doesnt reform compression of data. How we can detect a backup bottleneck?
NB: There are no any errors while full library verification process
Sergey