Re: SCSI Reset.
On Sat, 23 Jan 1999, Richard Kaszeta wrote:
> Daniel J. Brosemer writes ("SCSI Reset."):
> >I've just aquired a new external scsi hard drive, and I was wondering if
> >there is any way I can add it to my chain w/o losing my uptime? Is there
> >some utility to reset the bus or to re-poll the ID's?
>
> What is your SCSI adapter? With Adaptec 2940U2W's I've had good luck at
> this, *provided* that I pre-partition it on another machine, and I add
> it at a higher ID than the stuff that's running already... the adapter
> detects the change and the kernel rescans for devices.
>
> Other adapters may require you to echo something to
> /proc/scsi/(whatever-- not standardized) to cause a bus reset.
Thanks for the suggestions. I have an old Adaptec 1452CP. The driver
doesn't seem to support the proc-fs:
odin@bolverk:[/proc/scsi/aha1542]$ ls
0
odin@bolverk:[/proc/scsi/aha1542]$ cat 0
The driver does not yet support the proc-fs
Also, by "than stuff that's running already" do you include the host
adapter? If so, I'm SOL because my host is on ID 7. I've tried adding
the new drive on ID 6 and mounting it, and it doesn't seem to work. It is
formatted fat16 already.
My only experience with this is on solaris where there was a command to
poll the SCSI id's (I think solaris 2.5) that could be called by root at
any time.
-Dan
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