Ultimately i'm trying to run an import on 23 LTO tapes which is going
too slow and i'm trying to determine why. When it first started for
the first 16 tapes or so, I was seeing 30MB/sec+ import speed. On
Friday I noticed a lot of I/O activity on hdisk0 which is where the
TSM DB is located and
On Sun, Jun 24, 2007 at 11:31:50AM -0700, Gerald wrote:
Ultimately i'm trying to run an import on 23 LTO tapes which is going
too slow and i'm trying to determine why. When it first started for
the first 16 tapes or so, I was seeing 30MB/sec+ import speed. On
Friday I noticed a lot of I/O
I don't think it's thrashing.. no pi's or po's really..2GB of ram in
the system. dual power4 processors. Internal storage is 150GB SCSI
drives. I believe 10k RPM.
[EMAIL PROTECTED]:/$ vmstat 5
System Configuration: lcpu=2 mem=2048MB
kthr memory page faultscpu
Gerald -
You've conveyed how bad performance is in that operation, but we have
no solid information on what you are doing or the configuration
there, as in exactly what kind of Import, disk and I/O channel
configurations, tape connection type, etc. An Import is like an
intense client Backup,
