Hi All,
I would like to share a problem we have with one of our Windows 2008 backups and see if anyone has encountered a similar problem and if possable find a resolution.
Servers Involved:-
NBU Matser - HPUX 11.31 - NBU7504
Client - Windows 2008 x64 - NBU7507
Media server - Symantec 5220 Appliance - NBU 7506
The policy is using dedupe with accelerator and change journal - ALL_LOCAL_DRIVES (the D: drive is the problem drive)
A FULL once every 4 weeks (D: drive has 1.1 tb of data) then DIFFS daily (The Diffs are usually between 10 and 30 gigs and usually takes between 2 to 4 hours to complete)
Problem:-
Every so often the DIFF backup decides to backup 500 to 800 gigs of data and taking 10 to 20 hours to complete.
Anti virus is off during the backups and there appear not to have been any invasive maintenance (ie defraggs or data moves etc ) prior to the DIFFs going large.
We have had many calls logged with support and none have really identified the problem.
The latest was to upgrade to NBU7507 (Which we have done on the client) and this improved matters with the occurance of the BIG DIFFS being reduced drastically in frequency.
Our long term aim is to upgrade to NBU7601 but we are several weeks away from this.
Has anyone encountered a similar behaviour or is there anything that we could check or look into.
Regards
Paul