Re: hdparm standby timeout not working for WD raptors?

["Mark Weber" <crash@treysoft.com>]

On 10/14/07, Bart Samwel <bart@samwel.tk> wrote:
>
> Just to be sure: you did use -S 60 to get 5 minutes, right?

Yes. And hdparm is kind enough to print:

/dev/sda:
 setting standby to 60 (5 minutes)

Here's a bizarre sequence which I just noticed:
[extraneous blank lines removed for clarity]

>> hdparm -C /dev/sd[abcde]
/dev/sda:  drive state is:  standby
/dev/sdb:  drive state is:  standby
/dev/sdc:  drive state is:  standby
/dev/sdd:  drive state is:  standby
/dev/sde:  drive state is:  standby

>> hdparm -S 60 /dev/sda
/dev/sda: setting standby to 60 (5 minutes)

>> hdparm -C /dev/sd[abcde]
/dev/sda: drive state is:  active/idle
/dev/sdb: drive state is:  active/idle
/dev/sdc: drive state is:  standby
/dev/sdd: drive state is:  standby
/dev/sde: drive state is:  standby

Note that the -S 60 on /dev/sda affected
/dev/sdb too! This is repeatable.

I have these drives as RAID5 (software RAID).
I don't know if that has anything to do with the
failure of -S or not. Don't know if hdparm bypasses
the RAID or not.