Speed up backup?

[Seks]

Arcserve 11.1 with SP1 running on Win 2003 SP1. Dell Powervault 122T device.

Backup up a 320+ meg file from server B without using backup agent that is installed on server B: 159 m/min

Using backup agent: also 159 m/min

Is there some setting in Arcserve which I can tweak to perhaps speed the transfer rate up? Something to do with block size or whatever?

 

[Cyklops]

Which tape technology are you using, also what is the firmware level ??

 

[davidmichel]

Run a local backup.

If it is also 159mb/m then focus the attention at the local system instead of the target system.

 

[DebiJo]

Please forgive if this is a given... but after you installed the agent, did you change your backup job to back up through the agent? They should be selected under Windows NT/2000/XP instead of under the network.

Thanks,
Debi

 

[Seks]

cyklops: vs80. 40/80 tape. firware level of the tape drive itself?

david: ran a local backup of the same file. Also ~159 mb/min. So what should i be looking for on the local system?

debijo: I did that..same result...

 

[DebiJo]

Try moving it to another port in your switch. I have some servers that just don't like to backup others... Don't ask me, my network guy says it's not the network, but I move it to another backup server and it works much better.

Debi

 

[Cyklops]

It is always the VS80 drives that have these performance issues. If you used DLT8000 before erase the tapes before re-using them in a VS80 drive.
You can also try the following:

In the registry go to : HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\BrightStor ARCserve Backup\Base\TapeEngine\Device#

Device # corresponds to the tape drive that will require a change in block size.

Click EDIT, then ADD VALUE
ValueName=DefaultBlockFactor
Data type = Reg_Dword
Data: 5, Hexadecimal
In addition to 5, the following values can also be chosen:

0 = 512 (default)
1 = 1,024 (1K)
2 = 2,048 (2K)
3 = 4,096 (4K)
4 = 8,192 (8K)
5 = 16,384 (16K)
6 = 32,768 (32K)
7 = 65,536 (64K)

I think the setting for 5 (16K) or 6 (32K) works best for DLTVS80

regards