The volume from last week contained storage pools and I was able to move the
data off all except one.  Todays disk problem was much worse.  I was unable to
access the disk at all.  I was able to restart the server successfully.  All
the db volumes on the disk came up offline and the mirrored copy was used.
Looking back at the activity log, when the problem occurred the TSM server did
switch over to the mirrored copy for all mirrored volumes, then hung.  No error
messages.  So at this point I'm not sure what went wrong, but next time I'll go
a head and restart.  This was my first experience losing a disk with db volumes
on it and since I couldn't access the activity log, I wasn't sure what TSM was
doing and I was cautious as I didn't want to corrupt my mirrored copy.  The
disk is definitely bad and is scheduled to be replaced tomorrow.  Hopefully
nothing else goes wrong before then.

Thanks for all the help and advice everyone offered.

Diana Noble


Quoting "Davidson, Becky" <Becky.Davidson AT SLBG DOT COM>:

> I'm sorry I should have been clearer.  When I say server I mean the tsm
> server.  Sometimes I can't log into a server from the host it is on but I
> can from another host or I can via an already set up server to server
> connection.  Did you ever recover the volume from last week?
>
> -----Original Message-----
> From: Diana Noble [mailto:djk AT UMICH DOT EDU]
> Sent: Thursday, January 02, 2003 1:16 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: System hung - bad disk - not switching to mirror
>
>
> I can log in.  The machine is up and running.  I just can't get to the
> server.  The dbvolumes are files located on logical volumes.  And they are
> SCSI attached.
>
> Diana
>
>
> At 12:52 PM 1/2/03 -0600, Davidson, Becky wrote:
> >How are your dbv defined?  Are they files or logical volumes?  Can you get
> >in from another server or is all contact into the server hosed?  When you
> >say you are having a problem with a disk what kind of problem are you
> >having?  Is it SCSI, SSA, NAS or SAN attached?
> >
> >Becky
> >
> >-----Original Message-----
> >From: Diana Noble [mailto:djk AT UMICH DOT EDU]
> >Sent: Thursday, January 02, 2003 12:19 PM
> >To: ADSM-L AT VM.MARIST DOT EDU
> >Subject: System hung - bad disk - not switching to mirror
> >
> >
> >We are running 4.2.3.0 of TSM on an AIX 4.3.3 system.  We seem to be having
> >a problem with a disk where part of our TSM database is.  The database is
> >mirrored and it was my understanding that if you lose a DB volume it should
> >automatically switch to the mirrored copy and continue to run.  Right now
> >everything is hosed and we can't log in to the server.  The machine is up
> >and running.  I have a call into support with a severity 1, but was hoping
> >for some ideas of what to try while I wait for the call back from
> >support.  I haven't tried to kill the server process yet.  If I restart the
> >server, should it pick up the mirrored copy then?
> >
> >Diana
>