Exchange Server NT Backup

Posted on 2006-11-29
Last Modified: 2010-03-06
A customer of mine recently started having issues with his exchange NT backup where it was backing up a <2GB of data but creating a 20+GB file...

Background: Win2k3 SBS

I deleted and recreated the job and it still did it...

Basically all I do in NT backup is expand Microsoft Exchange Server > Server name > and check Microsoft information store. I schedule the job to be run at 3 in the morning and overright the previous copy.

I run the job manually and it acts as expected, but if I let it kick off at its scheduled time, it creates a 20+ GB file??

Any idea what could be going on here?


Question by:maxtexgr
  • 2
  • 2
LVL 39

Expert Comment

ID: 18041495
>>overright the previous copy.

I have seen that happen as well - try moving the file and letting it create a fresh one, see if it works then.

Someone else may have a reason, I only know of the cowboy way to fix it :)


Author Comment

ID: 18042266

Thanks for the idea, I did try that after I posted this and I just checked on it..

I set the backup to run at 6 this evening (usually it runs at 3AM) and cleared out the backup folder, I just checked on it and it created a 2GB file like I expected it to..

I just renamed the file and will let it create a new one tonight.

Anyone know why it doesnt just overwrite it, rather then create a file 10x as big??


LVL 39

Expert Comment

ID: 18042325
What it is doing (i expect) is not overwriting, but rather overwriting AND appending to the existing job.

I stopped being lazy and had a bit of a look around, there was nothing that I could find which detailed this problem, but I know what you are talking about.

One thing I can suggest, as a test, is to actually look at the command that is running NTBackup and post it here (it will be in scheduled tasks) - just post the whole line here, and we will look at it.

I was thinking of recommending you to add /um in there somewhere (i had to recently to get tapes to work) but I do not know what they will do.


Author Comment

ID: 18043102
Here is the command listed in run: for this backup job
C:\WINDOWS\system32\ntbackup.exe backup "@C:\Documents and Settings\Administrator\Local Settings\Application Data\Microsoft\Windows NT\NTBackup\data\Exchange.bks" /n "ExcBackup.bkf created 11/28/2006 at 6:06 PM" /d "Set created 11/28/2006 at 6:06 PM" /v:yes /r:no /rs:no /hc:off /m normal /j "Exchange" /l:s /f "D:\ExchangeBackup\ExcBackup.bkf"

As you can see, it backups up to a local HD partition.

Accepted Solution

Computer101 earned 0 total points
ID: 18391238
PAQed with points refunded (250)

EE Admin

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
New firewall implementation guidance 12 62
Exchange 2013 POP3 2 27
Exchange Online - Change the default global address list 1 25
Not sure what the best email signature size is? Are you worried about email signature image size? Follow this best practice guide.
Scam emails are a huge burden for many businesses. Spotting one is not always easy. Follow our tips to identify if an email you receive is a scam.
In this video we show how to create a Resource Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: Navigate to the Recipients >> Resources tab.: "Recipients" is our default selection …
In this video we show how to create an Accepted Domain in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Ac…

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question