Re: Delete obsolete directories only?

2004-04-20 17:33:23
Subject: Re: Delete obsolete directories only?
From: Alex Paschal <AlexPaschal AT FREIGHTLINER DOT COM>
Date: Tue, 20 Apr 2004 14:32:07 -0700
Hi, Debbie, Tab.

You'll have to rebind those objects.  Since they're inactive, it'll be
really fun.  In fact, it's probably not worth doing all the steps in Option
2 if you have a lot of objects, but it's a fun exercise anyway.

Option 1)  This is the easiest if you're a C programmer. Use the TSM API and
some custom C code.  I haven't tried this, but I don't recall reading
anything that says the dsmUpdateObj call has to be used against an active
object.  The API manual says:  "You can also rebind backup copies to a
different management class by using the dsmUpdateObj call and the

Option 2)  Let's say /FSNAME is the filespace name of the inactive object,
and OBJECT is the object name.  First you create a management class with
RETEXTRA and RETONLY of 0, or use an existing one with a short enough
retention for your requirements.  You create the filesystem /FSNAME.  You
create a small file in /FSNAME called OBJECT.  You back it up using the
baclient and bind it to the management class you created.  It'll rebind both
the file and your inactive database objects with the same HL_NAME and
LL_NAME.  Then you delete OBJECT from the /FSNAME filesystem, then dsmc inc
/FSNAME/OBJECT again, or use the expire command.  It'll expire it, then
during your next expiration process it'll go away.

What gets fun is in Windows, like Tab's problem.  You actually have to
create a new drive, say, \\servername\q$.  Then you create your OBJECT file
path and whatnot under there, then on the TSM server do a "rename
filesystem" to go from \\servername\f$ to \\servername\q$.  Then do your
backups, rebinding, and delete/expire, then rename the filesystem back.  As
I said, it's a lot of fun.

Gotchas to watch out for are the possibility of inactivating all your good
stuff if you just dsmc inc /FSNAME, or rebinding stuff you don't want
rebound.  You might want to test first. :-)

I've actually used this process to get rid of a few DB2 backups.  It was a
while ago, so I might be missing a few steps. And in Tab's case, he'll
probably want to write a script to create all those directories, rebind,
delete, etc.

Good luck!
Alex Paschal
Freightliner, LLC
(503) 745-6850 phone/vmail

-----Original Message-----
From: Weeks, Debbie [mailto:debbie AT ADMIN.USF DOT EDU]
Sent: Tuesday, April 20, 2004 6:30 AM
Subject: Re: Delete obsolete directories only?

Thanks Steve.  We have used the expire command, but this only seems to
mark them inactive.  Because the management class they are assigned to
holds the only version forever, or until it knows the file has been
deleted, they are marked inactive, but never go away.  Any suggestions
for completing the process and having them expire completely?

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Steve Harris
Sent: Monday, April 19, 2004 7:12 PM
Subject: Re: Delete obsolete directories only?


I'm not familiar with sql backtrack but...

I've used the normal BA client to delete orphan DB2 backups in the past.
These are archives and I used the delete archive command.
If sql backtrack uses backups rather than archives, then take a look at
the ba client expire command

Because these are API backups, to address them from the BA client you
need to use a special syntax with braces around the "filespace" part of
the file name.  See the BA client doc for details.


Steve Harris
AIX and TSM Admin
Queensland Health, Brisbane Australia

>>> debbie AT ADMIN.USF DOT EDU 20/04/2004 0:04:23 >>>
I have not seen a response to this question, and I have a similar
situation.  We had noticed that our filespaces for our Oracle DB backups
keep growing in leaps and bounds, and it finally became clear that they
were growing faster than would be expected in consideration of the
number of databases we have added.  Upon investigation I have found that
there is an enormous amount of space being used by backups that should
have expired, however I cannot delete the entire filespace because that
would also eliminate the valid backups.

I have found that there seems to be two separate issues at play.  One is
that upon installing a new version of SQL Backtrack the Oracle admin
that handles those profiles used the wrong management class, leaving the
backups in limbo on TSM.  They have expired from the SQL Backtrack
catalog and marked inactive, however, they will never be removed from
TSM in their current state.  I cannot bind them to the appropriate
management class via the usual methods.  The other issue is that we seem
to have some stragglers from 2001 and 2002, that should have expired,
but are still hanging around for some reason.

The only way I have found in the documentation to remove these items is
by deleting the object by object number from the database.  Can anyone
tell me if this is the only way to clean up these items, and if that
will in fact work to remove them from the tapepool storage?

TSM for AIX 5.2.0
TSM for SUN/Solaris 4.2.1
SQL Backtrack 3.0, 4.0.10


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Tab Trepagnier
Sent: Friday, April 16, 2004 1:47 PM
Subject: Delete obsolete directories only?

TSM Server on AIX; TSM Client on Windows 2000

I have a situation where over time, the location of data on our network
has moved from server to server.  In many cases we moved the identity of
the first server to the second server, but the data paths were not
duplicated exactly.  For example,


where "current_root_path" and "old_root_path" are peers under the same
"d$" parent.

Because the "old_root_path" became invalid on the first backup of the
new server, all the data under it was marked inactive by TSM.  No
problem there.
Once the RetOnly duration elapsed, all the FILES were purged from that
path.  Again, no problem there.

But the directories were retained, probably because they were bound to
"no limit" permanent management classes prior to our implementing DIRMC
controls.  Meaning those directories will live for the duration of the
server's identity or our TSM system, whichever ends first.
Those duplicate paths confuse our Help Desk.  I would like to delete
just the contents under "old_root_path" since there are no files under
that path.  But because both root paths are under the same filespace, I
can't delete the filespace.  I turned on the permission "node can delete
backups" but that still didn't let me kill that directory tree.

So, is there a way to kill the directory tree under "old_root_path"
other than killing the entire filespace?


Tab Trepagnier
TSM Administrator
Laitram, L.L.C.

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