Hi All TSM 6.3.0.0 server under RHEL 5.7. on an IBM xSeries, Qlogic HBAs
I'm running to 2xLTO5's in a TS3310 library and have 4Gb path to the drives. The data compresses at about 1.5:1. I'm seeing long-running backup stg tasks average 140MB/sec from disk to tape or tape to tape. That is good, but it could be better. 140MB/sec is LTO5 rated raw capacity so with this data I should be seeing 200 or a bit more. In a windows environment, you go into the Qlogic SanSurfer software and tick a box that says this is a tape HBA and increases the block-size of each transfer. How do you do this under Linux? Regards Steve. Steven Harris TSM Admin Canberra Australia
