Job reports failure, but bak file created

The view history of a job created from a maintenance plan reports that it
failed, and the log says that it failed in the backup operation because
"A nonrecoverable I/O error occurred on file
"\\\\BIGPETE\\E\\data\\Backups\\Daily\\MCR_SFPMS\\MCR_SFPMS_backup_200707110001.bak:" 64(The specified network name is no longer available.).
And yet MCR_SFPMS_backup_200707110001.bak does exist, and moreover, it was a
valid backup, as I just confirmed by restoring it to a test database. So why
the error?
Also, this does not happen consistently. The reporting of this apparent
non-error has occured twice out of the last five runs.Does the backup process include a Verify? IF so the error is most likely
occurring on the verify process which is done after the backup is complete.
Backup & Verify is an intensive operation and if you are backing up across
the network there is plenty of time for the network to drop packets etc.
Sounds like you have an unstable network or networks equipment.
--
Andrew J. Kelly SQL MVP
"Bev Kaufman" <BevKaufman@.discussions.microsoft.com> wrote in message
news:AF302871-2972-420D-A932-408F42EA1EA9@.microsoft.com...
> The view history of a job created from a maintenance plan reports that it
> failed, and the log says that it failed in the backup operation because
> "A nonrecoverable I/O error occurred on file
> "\\\\BIGPETE\\E\\data\\Backups\\Daily\\MCR_SFPMS\\MCR_SFPMS_backup_200707110001.bak:"
> 64(The specified network name is no longer available.).
> And yet MCR_SFPMS_backup_200707110001.bak does exist, and moreover, it was
> a
> valid backup, as I just confirmed by restoring it to a test database. So
> why
> the error?
> Also, this does not happen consistently. The reporting of this apparent
> non-error has occured twice out of the last five runs.|||On Jul 11, 9:16 am, Bev Kaufman <BevKauf...@.discussions.microsoft.com>
wrote:
> The view history of a job created from a maintenance plan reports that it
> failed, and the log says that it failed in the backup operation because
> "A nonrecoverable I/O error occurred on file
> "\\\\BIGPETE\\E\\data\\Backups\\Daily\\MCR_SFPMS\\MCR_SFPMS_backup_200707=11=AD0001.bak:" 64(The specified network name is no longer available.).
> And yet MCR_SFPMS_backup_200707110001.bak does exist, and moreover, it wa=s a
> valid backup, as I just confirmed by restoring it to a test database. So= why
> the error?
> Also, this does not happen consistently. The reporting of this apparent
> non-error has occured twice out of the last five runs.
Are you utilizing a third party backup tool? We use RedGate in our
SQL Server 2000 (SP3a - don't ask) environment and have encountered
this on a daily basis. When we used normal backup procedures, no
errors were reported. I have the same issue though, but figured it
might be resolved with a newer service pack. The only thing I can
think of is possibly disk contention of you are utilizing a SAN
environment, but not sure.
Maybe if we put our heads together, we can figure it out. I haven't
put a whole lot of effort into it once I realized that the backups are
working properly (as verified by the restores). I know, terrible, but
sometimes other fires are hotter :)