NTBackup not backing "some" mapped drives

Dear experts,

I have a weird problems with my NTBackup. We are still using W2K3 servers, no W2K8.

Here is the issue :- We have a few W2K3 servers and on 3 of them we have configure tape backups. All been working fine until we changed the Administrator password recently, some of the backup failed.

The failure is a bit weird. I HAVE gone through all the backup schedules to enter the new password. I have remapped all the necessary network drives using the right credentials. 2 of the backup servers work fine, the problem is only on the third one (BKServer3).

On that server we backup data on C:\ drive, Microsoft Exchange store and a couple of mapped drives. What happen was, c:\ drive and MS store had been backup but not the mapped drives. I can see the mapped drive and access them without issue. REmapping hasn't resolved the problem. There is NO error in event or backup log. What really strange is that this only occurs a couple of times a week - i.e. the backup successfully complete most of the time but failed occassinoally.

So is there anything I can look at? I am a bit stuck in this.

Thanks in advance for any help.

LVL 23
ormerodrutterAsked:
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WayneATaylorConnect With a Mentor Commented:
if the password has a space surrounf it in " characters.

eg

net use x: \\server\share /user:domain\administrator "my password"

Wayne
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WayneATaylorCommented:
Hi

The mapped drives won't normally backup as they aren't known about when you are running the backup on a schedule. You might find the backups work if the server is left logged on and just locked, as when you log off the server the mapped drives are deleted.

You might find that creating a batch file to run the backup, and first using a "net use x: \\server\share" command should work. You will also need to specify the credentials in that batch file command.

So you would basically have a batch file similar to


net use \\server\share /user:domain\username password
ntbackup %then the commands for your backup%

You can then run this using the scedule service.

Wayne









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chakkoCommented:

Have you looked at the backup Report log?  

Logon using the same user account that the backup job runs under (windows Tasks).
In the backup program, Tools ->  Reports

Maybe the mapped drives are getting disconnected?  Is the server with the mapped drives getting restarted during the week?  
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ormerodrutterAuthor Commented:
All servers were left on overnight. I have tried using a batch file (without the map-drive command) and same result. As mentioned, 60% of backup completed sucessfully so surely BKServer3 recognises the mapped drives.

Obviously I am not able to test if the drive been disconnected at time of backup (2am) - but when I checked in the morning I have no problem accessing those "missed" path.
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WayneATaylorCommented:
Hi

Might is be then that the server is logged off when I'ts failing, and logged onw hen it works?

Normally when a server runs a scheduled job, the Mapped drives cannot be accessed.

I'd say try adding the NET USE command into your batch file.

Just realised a slight mistake I made, fix below (I missed the drive letter off)

net use x: \\server\share /user:domain\username password
ntbackup %then the commands for your backup%

Wayne




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ormerodrutterAuthor Commented:
Do I need to include the USername and PAssword in the net use command if I am logged in as the Administrator? I only log in the server using Administrator (all servers).

Will try your suggestion - report next week.
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WayneATaylorCommented:
Yes you will need the Username/Password in the net use command if it's ran using a schedule as you are not logged on as anything when that runs.

Wayne

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ormerodrutterAuthor Commented:
IF the drives are already mapped (through a logon script) do I have to "detach" first and remap?
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WayneATaylorCommented:
You should find that when run as a scedule, the drives are not even available so you should not need to do that.

Basically when the schedule runs, it starts a separate process with it's own environment so the mapped drives on the logged on user are complete separate.

Wayne

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ormerodrutterAuthor Commented:
OK one last question (I hope)

My username :- administrator
My password :- my password (of course it is not my real password but I do have a space between)

so the context would be
net use x: \\server\share /user:domain\administrator my password
is that correct with all the spaces??
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ormerodrutterAuthor Commented:
Thx Wayne it works fine :)
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