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Troubleshooting throughput performace issues

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Dansimmo

Technical User
Jul 8, 2008
8
GB
Hello,

I have recently reinstalled Arcserve on a HP LP 2000r Win 2003 server.

Arcserve is running SP1 (and yes I need to patch to SP4)and attached is an HP Ultrium LTO1 Tape Autoloader 1/9 running direct back ups from about 9 servers. They are all on a Gigabit network so am I right in ruling out network issues?

The throughput for all the servers is around 500MB/minute which seems slow to me (about the same to disk). This isn't a problem for most jobs but one job backs up over a million files (approx 400GB) and takes 14 hours (I know that more files deteriates the throughput speed). All of the jobs are multiplexed. I have tried to set the prioirty of each client to low, medium and high without any changes. Also, I have regularly monitored the performance of the main file server (mentioned above) and the back up server but there aren't any issues there.

Without attaching a tape drive directly to the file server what else can I try to increase the performance of the backup schedule?

To add a twist to this I'm also looking at upgrading and would also appreciate any comments on new solutions based on 700GB of network data on our network - may be d2d2t? Obviously I need to establish what is wrong the the current set up.
 
Hi ,

Please run the followign tests :

1) test backups trying different values for the Job Engine buffers.Try to Increase the buffer size in the server admin to 512 and see how it goes .

2) ARCserve Copy job of same data from target to local system

3) Copy via NT OS of same data.

This will let you know the exact performance

cheers

Sandy
 
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