Saturday, February 25, 2012

Maintenance Plans

I have a maintenance plan set up to backup my SQL 2000 databases. The backup
is set to backup the transaction log as well as the databases. Both are
configured to delete any backups that are older than 1 day. My maintenance
plan works great with the exception of one thing...the backups don't delete
the older files so I end up running out of space (which in turn makes my
backups fail).
Why will my maintenance plan not delete these backups like I've configured?
The databases recovery methods are configured to ":Bulk-logged".
Thanks for any help.
Nancy
Here is a blurb that may answer your question:
-- Log files don't delete --
http://support.microsoft.com/default...;en-us;Q303292
This is likely to be either a permissions problem or a sharing violation
problem. The maintenance plan is run as a job, and jobs are run by the
SQLServerAgent service.
Permissions:
1. Determine the startup account for the SQLServerAgent service
(Start|Programs|Administrative tools|Services|SQLServerAgent|Startup). This
account is the security context for jobs, and thus the maintenance plan.
2. If SQLServerAgent is started using LocalSystem (as opposed to a domain
account) then skip step 3.
3. On that box, log onto NT as that account. Using Explorer, attempt to
delete an expired backup. If that succeeds then go to Sharing Violation
section.
4. Log onto NT with an account that is an administrator and use Explorer to
look at the Properties|Security of the folder (where the backups reside)
and ensure the SQLServerAgent startup account has Full Control. If the
SQLServerAgent startup account is LocalSystem, then the account to consider
is SYSTEM.
5. In NT, if an account is a member of an NT group, and if that group has
Access is Denied, then that account will have Access is Denied, even if
that account is also a member of the Administrators group. Thus you may
need to check group permissions (if the Startup Account is a member of a
group).
6. Keep in mind that permissions (by default) are inherited from a parent
folder. Thus, if the backups are stored in C:\bak, and if someone had
denied permission to the SQLServerAgent startup account for C:\, then
C:\bak will inherit access is denied.
Sharing violation:
This is likely to be rooted in a timing issue, with the most likely cause
being another scheduled process (such as NT Backup or Anti-Virus software)
having the backup file open at the time when the SQLServerAgent (i.e., the
maintenance plan job) tried to delete it.
1. Download filemon and handle from www.sysinternals.com.
2. I am not sure whether filemon can be scheduled, or you might be able to
use NT scheduling services to start filemon just before the maintenance
plan job is started, but the filemon log can become very large, so it would
be best to start it some short time before the maintenance plan starts.
3. Inspect the filemon log for another process that has that backup file
open (if your lucky enough to have started filemon before this other
process grabs the backup folder), and inspect the log for the results when
the SQLServerAgent agent attempts to open that same file.
4. Schedule the job or that other process to do their work at different
times.
5. You can use the handle utility if you are around at the time when the
job is scheduled to run.
If the backup files are going to a \\share or a mapped drive (as opposed to
local drive), then you will need to modify the above (with respect to where
the tests and utilities are run).
Andrew J. Kelly SQL MVP
"Nancy Kafer" <nkafer@.homesteaderslife.com> wrote in message
news:%23QzplQl0EHA.1260@.TK2MSFTNGP12.phx.gbl...
>I have a maintenance plan set up to backup my SQL 2000 databases. The
>backup
> is set to backup the transaction log as well as the databases. Both are
> configured to delete any backups that are older than 1 day. My maintenance
> plan works great with the exception of one thing...the backups don't
> delete
> the older files so I end up running out of space (which in turn makes my
> backups fail).
> Why will my maintenance plan not delete these backups like I've
> configured?
> The databases recovery methods are configured to ":Bulk-logged".
> Thanks for any help.
> Nancy
>
>

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