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Ultrium Performance

Raginder Singh
Occasional Visitor

Ultrium Performance

Problem on performance on LTO - Ultrium 4/40 attached to K460 with 4cpu ( 180mhz ), 2 gb of memory & 4 channels running on Omniback 2.
For 1gb of data it took almost 1/2 hour.
Where is the problem ,is there any parameter need to be tune , patches to update ?
harry d brown jr
Honored Contributor

Re: Ultrium Performance

The problem is: one of these:

(1) K-class server - slow backplane
(2) scsi channel - what are you using?
(3) type of backup - command used?
(4) speed of disks?
(5) other things running on server?
(6) What OS revision?
(7) bring your server up to the latest patch bundle - at least
(8) upgrade omniback!
(9) check firmware of LTO

live free or die
Live Free or Die
Vincent Farrugia
Honored Contributor

Re: Ultrium Performance


How is the SCSI configuration on the drives? Are they on the same SCSI bus?

Make sure the Ultrium drives are all on separate SCSI HBAs. No daisy-chaining of drives allowed here.

Tape Drives RULE!!!
Leif Halvarsson_2
Honored Contributor

Re: Ultrium Performance


Create a local null device in OmniBack (file device to /dev/null) and back up to this. If you not get better performance with this the problem is disk/filesystem performance.