[Beowulf] Re: OT: LTO Ultrium (3) throughput?
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Brett Worth brett at worth.id.auWed Jun 18 18:31:02 PDT 2008
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"David Mathog" wrote: > > dd if=/dev/zero of=/dev/nst0 bs=8192 count=10000 > >only moves 21.3MB/sec. David, Are you using LTO-3 tapes? An older gen tape could do it. Also I have seen instances where /dev/zero is no longer a device but has turned into a file. Maybe a big file due to an incorrect "dd of=" option at some stage. From then on your dd tests would be measuring your root disk performance. Regards Brett Worth
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