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Jens Axboe wrote: >> Can you measure spin up time for your 15k's? Some controllers can't >> catch the first D2H FIS after POR and have to wait unconditionally for >> spin up for hotplug & resuming from suspend. Currently 8 sec wait is >> used but it seems insufficient for your drives. Failing to spinup in >> that 8 secs would probably result in timeout of the first reset attempt >> and retrial - which currently takes > 30 secs. >> >> Spin-up time can be measured by first issuing STANDBY and then time how >> long IDLE IMMEDIATE takes, I think. > > The 15K RPM is a SCSI drive, I haven't seen any SATA 15K rpm drives yet. > I have the same model in another box, I can measure spinup with > START_STOP unit there. I will do so later today, when I fire it up, if > you still want to know? > Arggh.. Confused w/ 10k drives. But it would be nice to know spin-up time for 15k's if it doesn't waste too much of your time. Thanks. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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