Re: Selective backup and Incl/excl

Thought you would like to know
Practical experience is that when performing a selective "full" backup
eg.      SYS:*
that exclude.dir coded in the dsm.opt is honoured





Andrew Raibeck <storman AT US.IBM DOT COM> on 11/28/2001 09:11:35 PM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

To:   ADSM-L AT VM.MARIST DOT EDU
cc:    (bcc: John Naylor/HAV/SSE)
Subject:  Re: Selective backup and Incl/excl



Hi Alex,

I would say that the key text is in the EXCLUDE.DIR description:

"When you exclude a directory, you can still back up specific files within
that directory using a selective backup. However, the next time you
perform an incremental backup, these backup versions are expired."

This should be stricken from the documentation.

The behavior as documented wasn't really by design (and I would discourage
anyone from trying to exploit this behavior); rather, it was a known
"hole" that needed to be plugged. In fact, I don't even think it was
documented when EXCLUDE.DIR was introduced; rather, it was documented to
point out this "hole" after the fact. Now this line needs to come out.

Best regards,

Andy

Andy Raibeck
IBM Software Group
Tivoli Storage Manager Client Development
Internal Notes e-mail: Andrew Raibeck/Tucson/IBM@IBMUS
Internet e-mail: storman AT us.ibm DOT com

The only dumb question is the one that goes unasked.
The command line is your friend.
"Good enough" is the enemy of excellence.




Alex Paschal <AlexPaschal AT FREIGHTLINER DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
11/28/2001 12:46
Please respond to "ADSM: Dist Stor Manager"


        To:     ADSM-L AT VM.MARIST DOT EDU
        cc:
        Subject:        Re: Selective backup and Incl/excl



Hi, Andy.

I've included some text from the 3.1 and 4.2 Windows client manuals.  It
looks like selective backup behavior regarding exclude.dir has been
consistent.  A selective backup should be able to backup files excluded by
exclude.dir.  I didn't see any notice about this kind of change in the
readme.  Not to be a noodge, but if you're seeing otherwise with the 4.2.1
client, I feel that should either be reported as an APAR or, if it's a
planned change in functionality, that should be changed in the
documentation.

Thanks,
Alex

Alex Paschal
Storage Administrator
Freightliner, LLC
(503) 745-6850 phone/vmail

4.2 manual

Selective Backup Requirements
When you request a selective backup, TSM backs up a file if all of
the following requirements are met:
The file is not specified on an exclude statement in your include-exclude
list. If you do not have an include-exclude list, all files are considered
for backup.

Exclude option excerpt:
exclude.dir
Excludes a directory, its files, and all its subdirectories and their
files
from backup services. The exclude.dir option works only if the excluded
directory is a subdirectory. Use this option to exclude a portion of your
data in which no underlying files need to be backed up.  When you exclude
a
directory, you can still back up specific files within that directory
using
a selective backup. However, the next time you perform an incremental
backup, these backup versions are expired.

3.1 manual

When you request a selective backup, ADSM backs up a file if all of the
following
requirements are met:
The file is not specified on an exclude statement in your include-exclude
list. If you do not have an include-exclude list, all files are considered
for backup.

Exclude option excerpt:
.dir
Excludes an entire directory from backup services. The pattern is used to
find matching directory names. If a matching directory is found, that
directory, its files, and all its subdirectories and their files are
excluded from backup services. When you exclude a directory, you can still
back up specific files within that directory, using selective backup.