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Old 12-10-2003, 10:19 AM   #1
nagyv
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Registered: Dec 2003
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ServeRaid 6M ppoor performance


Does anybody has any experience in poor performance with IBM's raid cards?
We have this problem with an eServer 255.
OS: RH9
card: ServeRaid 6M
HDDs: 6*U320 137GB 10K HDD in RAID 5

We have installed Arcserve 9 on it.
Ultrium 1 drive attached to integrated scsi controller.
backup speed: 600-700 MB/min

which is about 10MB/s

That is terrible!

Any help is welcome!!!
 
Old 12-10-2003, 10:50 AM   #2
mcleodnine
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Looking at the Ultrium site
Quote:
Ultrium 1 provides for data transfer rates of 15-30 MB/ second (2:1 compression) for the first generation of the 8-channel version.
Not too sure how to read that one, but if you're seeing 10MB of compressed data then I'd say you're running about normal speed. I wouldn't place any blame on the RAID controller as you will be limited by the write speed of the backup device.
 
  


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