On Montag, 20. Juni 2011 Markus Trippelsdorf wrote: > Here are two more examples. The time when the hang occurs is marked Could it be that some sectors on the disk are not easy to read for the drive, and that it simply retries several times until it works again? SATA disks can show that behaviour. You could try with "dd" with seek/skip parameters so you read 1gb at once, then skip 1gb and read 1gb again etc, and compare the throughput over all 1gb areas. If there's one slower, that might be the problem. Maybe a check with "smartctl" could help, too. Just an idea because during your hang, no CPU or I/O is done, so I guess it wouldn't be the fault of Linux/XFS or other software, but more hardware. -- mit freundlichen Grüssen, Michael Monnerie, Ing. BSc it-management Internet Services: Protéger http://proteger.at [gesprochen: Prot-e-schee] Tel: +43 660 / 415 6531 // Haus zu verkaufen: http://zmi.at/langegg/
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