ADSM-L

Re: Re - Tape problem after moving TSM to new server

2006-03-25 16:44:51
Subject: Re: Re - Tape problem after moving TSM to new server
From: Farren Minns <fminns AT WILEY.CO DOT UK>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Sat, 25 Mar 2006 21:42:50 +0000
Thanks Ben

For now I have brought the old server up again and everything is working
fine, so I am happy that the library is not doing anything silly (well,
reasonably happy).
I have been given a few pointers here to look at but sadly I think it will
be a case of trying this all again next weekend and trying to figure out
the problem as I go along.

Many thanks to all for your help. I'm sure I will have more questions
throughout the coming week.

Farren Minns
Sys Admin/Oracle DBA
IT - Hosting Services

John Wiley & Sons, Ltd.

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|   Ben Bullock               |                                           |
|   <bbullock AT MICRON DOT COM>     |                                          
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|   Sent by: "ADSM: Dist Stor |                                         To|
|   Manager"                  |                 ADSM-L AT VM.MARIST DOT EDU     
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|   <ADSM-L AT VM.MARIST DOT EDU>    |                                         
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|   25/03/2006 18:55          |                                    Subject|
|                             |                 Re: [ADSM-L] Re  - Tape   |
|         Please respond to   |                 problem after moving TSM  |
|         "ADSM: Dist Stor    |                 to new server             |
|             Manager"        |                                           |
|      <ADSM-L AT VM.MARIST DOT EDU> |                                          
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                 mtlib -l /dev/lmcp0 -q I

                 will show you the inventory categories for the tapes. You
have to translate it from HEX to check if it matches up with the TSM server
categories.

                This is probably not your issue, but I will document it
here just in case.

                If you see a lot of FFFA, FFFB or FF00, the library might
have lost it's categories. It only happens to us once in a while when the
PC in the library goes very bad, or when an admin accidentally does
a  "reinventory all" on the back of the library instead of doing an "update
inventory".

                Either way, if that happens you can get a listing from TSM
with a "q libvol" and then apply your scratch and private categories back
onto the library with the "mtlib -l /dev/lmcp0 -C -VTAPE -tHEX". It is
simple to script.

Ben

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Farren Minns
Sent: Saturday, March 25, 2006 9:50 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re - Tape problem after moving TSM to new server

Hi Richard

Well sadly for now I have had to revert to the old server again for
tonights backups. All I can do now is try and work out exactly what is
going on and try to have some kind of a plan to pre-empt this caveat.

As far as the Private and Scratch category goes, the new settings (within
TSM) were the same as for the old server so I don't think it could be that.
But I will need to go through my current server with a fine tooth comb and
pick out any info I may possibly need.

You mention finding out the category code of  volume using the mtlib
command. I know a few mtlib commands that I have been using, but not one
that shows the category?

Also, do you think it would be necessary for me to delete and redefine the
deviceclass just as I did with the lib,drives, paths etc? And, If I did
that, would it trash my tapepool, copypool etc?

Sorry for the all the questions but I'm tearing my hair out. It was all
going so well :-)

Many thanks

Farren Minns


|-----------------------------+-------------------------------------------|
|   Richard Sims <rbs AT bu DOT edu> |                                         
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|                             |                                           |
|   25/03/2006 15:31          |                                         To|
|                             |                        Farren Minns       |
|                             |                        <fminns AT wiley.co DOT 
uk|
|                             |                        >                  |
|                             |                                         cc|
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|                             |                                    Subject|
|                             |                        Re: Tape problem   |
|                             |                        after moving TSM to|
|                             |                        new server         |
|                             |                                           |
|                             |                                           |
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On Mar 25, 2006, at 9:59 AM, Farren Minns wrote:

>
> ANR8447E No drives are currently available in library 3494A.

This kind of message is often a conflict involving devclass, made confusing
because the message doesn't say as much as it could.
Generically, it means that TSM thinks there are no drives of the correct
*type* for the media involved. In a 3494, with its Category Codes, it may
mean that the tapes ended up with a Category Code value which differs from
those in the TSM Library definition. In this case, do Query LIBRary and
compare the Private and Scratch categories against what the tapes actually
have, as reported via the mtlib command. Whereas you can mount scratches,
it suggests that your Private category code values may be off. Beyond that,
query your devclass configs and compare to what your full/filling tapes
show for devclass.

Whereas you moved to a new Solaris platform, there may be subtle
differences in the drive definitions which are causing problems. Do a SHow
LIBRary and compare against your OS display of tape drive definitions.

  Richard


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