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Message-ID: <71b295590710141505x54ca0a8fwebfd75ab4fdf2e71@mail.gmail.com>
Date:	Sun, 14 Oct 2007 17:05:12 -0500
From:	"Mark Weber" <crash@...ysoft.com>
To:	"Bart Samwel" <bart@...wel.tk>
Cc:	"Mark Lord" <lkml@....ca>, linux-kernel@...r.kernel.org
Subject: Re: hdparm standby timeout not working for WD raptors?

On 10/14/07, Bart Samwel <bart@...wel.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.
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