Another strange thing: I now started a "dd if=/dev/dm-0 of=/dev/null bs24k". For the first seconds(!), it did nothing, I thought it would hang. Then it started, but it's reading in a strange way: Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util xvdg 139378,24 0,00 15893,61 0,00 77640,82 0,00 9,77 35,96 2,26 0,06 99,88 xvda 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 xvde 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 xvdb 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 dm-0 0,00 0,00 155241,52 0,00 77620,76 0,00 1,00 353,51 2,28 0,01 99,88 Very many I/Os and very slow KB/s. What could cause that? lv readahead is 1536 sectors, that's 128KB per data disk (a 7 disk RAID-5) and should be OK. -- mit freundlichen Grüssen, Michael Monnerie, Ing. BSc it-management Internet Services: Protéger http://proteger.at [gesprochen: Prot-e-schee] Tel: +43 660 / 415 6531
Attachment:
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
