>----- Original Message ----- >From: "Kevin Oberman" <oberman_at_es.net> >Sent: Thursday, September 09, 2004 10:28 PM > > While the test is running, the disk being written to "sings" with the > frequency somewhat dependent on the size of the write. On read, I get > silence. When I copy my full disk (if=ad0 of=ad2), I can clearly hear > the sound of the actuator moving the heads constantly toward the end of > the backup. I assume that they are being returned to track 0 on a > repeated basis. This sounds a lot like thermal recalibration seeks, to me. Except it's something modern hardware is supposed to need very rarely, if not at all... Might be the effect of some power-saving setting intruduced in 5.x ? (or maybe the new ATA code is actually so fast it's overheating your disks :-) :-) Angelo TurettaReceived on Fri Sep 10 2004 - 07:38:40 UTC
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