Re: arkeia and redhat

Ralph,

I've been using arkeia for a few years now, and have a couple of
suggestions.  First of all, you can try to just cancel the backup job for
the missed backup using the arkeia client.  Double click on the job from
the server administration screen, then click on the Stop icon to stop the
backup.  After a few seconds, the queued job should disappear from the
list of running jobs.  If you are lucky, the tape drive will be accessible
for a rewoffl operation after all of the pending arkeia jobs are stopped.

If that doesn't work, and your drive is still locked after all of the
arkeia jobs are stopped, there is another option short of a reboot.

This page describes the steps required:
http://www.uwsg.indiana.edu/linux/mdw/HOWTO/SCSI-Programming-HOWTO-4.html

First, make sure that your tape drive is on a separate scsi controller
from any other mounted hard drives.  Next, turn off the tape drive and
turn it back on.  To find out the necessary id and lun numbers, do this:

[root@foobar /root]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 04 Lun: 00
  Vendor: DEC      Model: TZ88     (C) DEC Rev: CC34
  Type:   Sequential-Access                ANSI SCSI revision: 02
...

You should see entries for all of your scsi attached devices.  In my case,
these two command lines:
echo "scsi remove-single-device 0 0 4 0" > /proc/scsi/scsi
echo "scsi add-single-device 0 0 5 0" > /proc/scsi/scsi

Tell linux to remove my tape drive from the current list of recognized
devices, then re-add it.  This is essentially what happens when you
reboot, but you don't need to reboot for this to work.

chris

On Thu, 7 Nov 2002, Ralph Houben wrote:

> good morning ladies and gentlemen,
>
> hopefully you can be of any assistence to me because
> i am not sure wether to post this message here or send
> it to ARKEIA. i have a redhat 6.2 server with a 2.2.19 kernel. everything
> seems to run smoothly until the point
> where i aint in the office one day and nobody changes the
> tape. the jobs get queue'd. this morning i logged onto the
> console, started arkeia, and noticed there was 1 job waitig. i inserted the
> tape and pressed ok to start it.. next
> popped a message up that another backup was scheduled
> aswell after this one. the tape unit, in this case a ONSTREAM ADR30 unit,
> froze completely. the only
> solution i see to regain control over the tape unit is to reboot
> the machine, but since it has all my smb shares email etc etc on it,  i'd
> rather postpone it if i can avoid it. i tryed
> releasing the tape with mt -f /dev/st0 rewoffl but that does
> not work at all. the tape unit seems active but does not
> do anything..
>
> can somebody help? or should i contact onstream / arkeia
> for this? i cant seem to find an error message in the logfile..
>
> any hints on how to solve this would be grately appreciated.

-- 
Chris Shelton