littlepunk
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Hi,
I'm looking after a customer who is backing up files from an AIX server (V 5.3) using latest BA Client to a Windows TSM Server (V 5.5.0). They do file level and TDP for Oracle backups.
Backups are fast. Restores (File level or TDP) are very slow and only running at 14 GB/hr. I get about 60GB/hr for restores to other Windows servers. It doesn't matter if I'm restoring from diskpool or tape pool, throughput is the same. FTP and other file copies to and from the AIX server give good results. They also use the Oracle TDP which also suffers slow performance.
We've had IBM in and run instrument tracing (both ends) and no one is any the wiser.
We've checked CPU/Memory/Disk IO/Network and can't find any problems or slowness except when restoring. The objects being backed up are large-ish files (between 20 and 200GB). We've been restoring one file at a time for testing. Network is Gb all the way (OS level file copies bear this out).
We've been through the various Performance and Tuning guides and experimented with setting like TCPWINDOWSIZE etc but nothing has made a significant difference.
I've seen a number of other articles complaining of restore performance and no solutions so I'm not very encouraged.
Any help would be greatly appreciated!!
I'm looking after a customer who is backing up files from an AIX server (V 5.3) using latest BA Client to a Windows TSM Server (V 5.5.0). They do file level and TDP for Oracle backups.
Backups are fast. Restores (File level or TDP) are very slow and only running at 14 GB/hr. I get about 60GB/hr for restores to other Windows servers. It doesn't matter if I'm restoring from diskpool or tape pool, throughput is the same. FTP and other file copies to and from the AIX server give good results. They also use the Oracle TDP which also suffers slow performance.
We've had IBM in and run instrument tracing (both ends) and no one is any the wiser.
We've checked CPU/Memory/Disk IO/Network and can't find any problems or slowness except when restoring. The objects being backed up are large-ish files (between 20 and 200GB). We've been restoring one file at a time for testing. Network is Gb all the way (OS level file copies bear this out).
We've been through the various Performance and Tuning guides and experimented with setting like TCPWINDOWSIZE etc but nothing has made a significant difference.
I've seen a number of other articles complaining of restore performance and no solutions so I'm not very encouraged.
Any help would be greatly appreciated!!