Re: Starting/Stopping SCSI HD's
You want scsi-spin. I'd suggest getting it out of woody, in the scsitools
package. There's recently been a minor documentation fix done on it.
I use it from /etc/init.d/halt on my headless all-SCSI machine so I know
when I can turn it off even when I don't have serial console up. It's an
OEM drive out of a Sparc that sounds like a jet engine.
On Fri, 28 Jul 2000, Simon Hales wrote:
>
> Hi
>
> Thanks for the quick reply, but unfortuately, no luck. I have done
> "hdparm -h" and "man hdparm" (I already had it, it seems), but very many
> of the features of hdparm (including all that seem to be relevant to
> starting/stopping/putting to sleep hard disks) are for IDE disks
> ONLY. These are "hdparm -y, hdparm -Y, hdparm -s, [/dev/sdb]" as far as I
> know, and when I try them, I get "operation not supported on SCSI disks"
>
> Regards
>
> Simon Hales
>
>
> On Fri, 28 Jul 2000, C. Falconer wrote:
>
> > hdparm can do this.... I have memories of it being mentioned earlier....
> > try as root
> > apt-get install hdparm
> > to get it faster than using dselect.
> >
> >
> > At 05:05 AM 7/28/00 +0100, you wrote:
> >
> > >Hi
> > >
> > >I have a Debian "Slink" 486DX4-100, with 1Gb IDE and 2GB SCSI II hard
> > >disks (hda and sda) partitioned and mounted on /, /usr, /home, /var, and
> > >/usr/local.
> > >
> > >I also have a 420Mb SCSI II hard disk (sdb) which has no fixed mount
> > >point, but which I am using to store stuff I don't access frequently, eg,
> > >moving downloaded *.deb files from /var/cache/apt/archives.
> > >
> > >I leave my box running Debian all the time, day+night, and the 1Gb IDE and
> > >2Gb SCSI disks are fairly modern, and very quiet, but this 420Mb disk
> > >consumes a fair amount of power, and sounds like a large aircraft taking
> > >off. I have configured this drive to respond to the "start/stop
> > >unit" SCSI command, and configured the Host Adapter (PCI AHA 2940 fast
> > >SCSI II) to send the "start unit" command to this drive during system
> > >boot.
> > >
> > >What I need to know now, is (how) can I send the start/stop unit command
> > >when Linux is running, so I can keep the thing spun down when is not
> > >mounted (which is most of the time), and only send the command to spin it
> > >up again when I need to mount it. I know that you can do this in FreeBSD,
> > >(which I run on another PC), the command is
> > >"camcontrol stop [channel:device-id:LUN]" or
> > >"camcontrol start [channel:device-id:LUN]". I presume there is also a way
> > >I can do this in Linux? What packages (if any) will I need to add using
> > >Dselect?
> > >
> > >
> > >Hope someone can help (and I can take out these earplugs :-)
> > >
> > >
> > >Simon Hales
> > >
> > >
> > >
> > >--
> > >Unsubscribe? mail -s unsubscribe debian-user-request@lists.debian.org <
> > >/dev/null
> >
> > --
> > Criggie
> >
>
>
> --
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