Backup is running extremely slow????

[globalmedia]

 

Does anyone know why my backups could be running so slow. We have about 130 GB backing up every week from a Windows Server onto a HP Tape Deck in-house. We have Retrospect 6.5. It seems to complete about a GB an hour so it takes almost a week to run the full backup. Is this normal? If not, what are some suggestions for speeding up the process?

 

Any help would greatly be appreciated.

 

Thanks

[Mayoff]

What type of HP tape drive? How is it connected to the computer?

 

Is this a local backup or a backup over the network?

 

Does the backup of other computers run faster?

[globalmedia]

The HP tape drive is an Ultrium 460. It is connected by a SCSI cable.

 

It is a backup over the network.

 

No, the backup of other computers does not run faster. The backup is backing up three servers all connected through a network in-house. The central server is the one connected to the tape drive by the SCSI cable.

[nekr0phage]

Hi,

 

What SCSI card are you using and what ID is the drive on? Are there any other devices on the chain?

 

Run a test backup to a disk backup set - what kind of speeds do you get?

[Mayoff]

With my LTO 2 drive I typically get about 500 MB/Min over the network. Locally I have seen 1500 MB/Min and higher during burst speeds.

 

You may want to download a 7.5 trial and see if the speeds are better. We have made changes to the buffer sizes, etc over the years.