Backing up Exchange 2007 using ntbackup

Ran out of disk space on my Exchange server on the c:| drive - tried to parse some logs but got this error when trying to backup using ntbackup:

The 'Microsoft Information Store' returned 'Functions called in an invalid sequence.

Make sure the Microsoft Information Stores (store.exe) is running.

Space Errors in Event log:

Source: MSExchangeTransport
Category:ResourceManager
Event ID:15006

The Microsoft Exchange Transport service is rejecting message submissions because the available disk space has dropped below the configured threshold.

Source: MSExchangeIS
Category: General
Event ID: 9518
Error Log disk full starting Storage Group /DC=uk/DC=co/DC=qsoft/DC=corp/CN=Configuration/CN=Services/CN=Microsoft Exchange/CN=Mail/CN=Administrative Groups/CN=Exchange Administrative Group (FYDIBOHF23SPDLT)/CN=Servers/CN=MAIL1/CN=InformationStore/CN=First Storage Group on the Microsoft Exchange Information Store. Storage Group - Initialization of Jet failed.

No backups have ever been made since we started utilizing this Server - so a recommended backup was suggested.


I couldn't backup due to the low space warning so I rebooted the Server and was able to do backups then.