On Mon, 27 Sep 1999, Brandon wrote:
>
> Question for the list & SCSI gurus...
>
> Is there any code that will allow SCSI drives to spin down after X amount
> of unused time? I have 3 different RAID 0 arrays (7 3 and 4 drives) that
> are in my server system. The data on them is not often updated and is
> backed up whenever it is.. (Which is why I chose level 0. I realize the
> problems I'm gonna have if one drive goes down.) But one of the drive
> arrays is rarely used (like less than once a week for about 5 hours total).
> However, the drives are constantly on & spinning - generating heat and
> shortening their life span.
>
> Is there anything that will allow me to spin these drives down after, say,
> 2 hours of unused time and then will cleanly spin them back up when they
> are accessed?
The following lsm entry might help you, although it may not be
compatible with your kernel. As stated, YMMV.
Begin3
Title: scsi-idle - Turn off SCSI disks when idle
Version: 2.0.34
Entered-date: 16JUN98
Description: A small kernel patch which spins down SCSI-disks after a
period of inactivity.
scsi-idle can probably be considered to be BETA software now,
it works for me but YMMV.
Keywords: SCSI idle spin down power save
Author: [EMAIL PROTECTED] (Bernhard Rosenkraenzer) (update to 2.0.34)
Author: [EMAIL PROTECTED] (Matthew T. Jachimstal) (update to 2.0.30)
Author: [EMAIL PROTECTED] (Christer Weinigel) (original)
Primary-site: sunsite.unc.edu /pub/Linux/kernel/patches/scsi
scsi-idle-2.0.34.tar.gz
Platforms: Linux
Copying-policy: Freely distributable
End
Geof Goodrum
