> There's also performance internal to the tsm server to consider. > The large server backups could be monopolizing your network > throughput, scsi card throughput, pci/pci-x bus throughput, or some > combination of all the above. >
System performance monitoring shows hardly any network I/O during this situation. After all there is incremental backups running, it's not backing up much. On the restorations, it was 10,000 files for 8 GB. again not much. One issue I have seen is high i/o wait on the TSM database volume, which is why I know I have a database I/O issue, but, cancelling the larger backups should not cause the restoration to suddenly jump from sending a few hundred mb per hour to a gig every 5 minutes. Which is why I think it's an internal TSM issue and not a hardware performance issue. But maybe it is. I Just need more input into what to look for. Matt Glanville
