Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 22 Oct 1998 17:34:30 +0200 (CEST)
From:      Markus Holmberg <saska@acc.umu.se>
To:        Graeme.Cross@sci.monash.edu.au
Cc:        questions@FreeBSD.ORG
Subject:   Re: IDE hard drive spin-down problem
Message-ID:  <Pine.LNX.4.05.9810221732580.23607-100000@hirohito.acc.umu.se>
In-Reply-To: <Pine.LNX.3.95.981022182405.23592A-100000@babylon.wsc.monash.edu.au>

next in thread | previous in thread | raw e-mail | index | archive | help
Hello Graeme,

If it is to any help, I have the exact same problem. I didn't know though
that the kernel error msgs (exactly same for me) were related to the spin
down. I'm also looking for ways to prevent the spin downs..

I'm using 2.2.7-STABLE and the hd is a IBM Deskstar 8gb.. (the other two
IDE hd's don't spin down).

Best Regards, Markus Holmberg.


On Thu, 22 Oct 1998, Graeme Cross wrote:

> I have a system with two IDE drives, where the second drive spins down
> after 10 or so minutes of computer idle-time.
> 
> It is very annoying because the system will lock up while it waits for the
> second drive to spin back up, which can take a couple of seconds.
> (There is also the issue of additional wear and tear on the drive as it
> spins up and down.)
> 
> These are the drives, as shown by dmesg:
> 
>   wdc0 at 0x1f0-0x1f7 irq 14 on isa
>   wdc0: unit 0 (wd0): <WDC AC21600H>
>   wd0: 1549MB (3173184 sectors), 3148 cyls, 16 heads, 63 S/T, 512 B/S
>   wdc0: unit 1 (wd1): <WDC AC2540H>
>   wd1: 515MB (1056384 sectors), 1048 cyls, 16 heads, 63 S/T, 512 B/S
> 
> I also see these messages in /var/log/messages:
> 
>   Oct  3 21:17:09 guava /kernel: wd1: interrupt timeout:
>   Oct  3 21:17:09 guava /kernel: wd1: status 50<rdy,seekdone> error 1<no_dam>
> 
> Which I assume is the kernel complaining that it couldn't read from the
> drive, because it was in the process of spinning back up.
> 
> I am running FreeBSD 2.2.7.
> 
> I have power management at the BIOS level turned off, and the first drive
> does not ever spin down.
> 
> I also have APM support turned off in /etc/rc.conf.
> 
> Is there a way that I can force the drive to not spin down? I suppose I am
> looking for a tool like Linux's hdparm? A search of the mailing list
> archives didn't yield any solutions.
> 
> Thanks in advance,
> Graeme
> 
> --
> Graeme Cross -- Water Studies Centre, Monash University
> 
> Random thought #99 (Collect all 237)
> The gene pool could use a little chlorine.
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-questions" in the body of the message
> 


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.LNX.4.05.9810221732580.23607-100000>