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 [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
