Patrick Mau <[email protected]> writes:
> Hallo everyone
>
> Today one of my SCSI drives decided to shutdown for no obvious reason.
> I suspect heat or a bad power supply. Syslog shows a repeating stream
> of the following:
>
> Jul 30 15:51:30 tony kernel: sd 0:0:0:0: Device not ready: <6>: Current: sense key=0x2
> Jul 30 15:51:30 tony kernel: ASC=0x4 ASCQ=0x2
> Jul 30 15:51:30 tony kernel: end_request: I/O error, dev sda, sector 617358
>
> Google revealed[1] that the drive is waiting for a START UNIT command,
> but it seems that the kernel is not attempting to spin up the drive
> again.
>
> After a complete power-cycle the drive worked again. I just wanted to
> know if this is a shortcoming in the SCSI error handling codepath.
I'll have to report that I've seen a few drives behaving similarly,
both on 2.4.x and 2.6.x.
Is that an expected behavior from SCSI hard drives? Any SCSI guru
would be able to answer this one?
Phil.
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