Arcserve Backups very slow

[jelley]

I am doing a local backup on a windows 2000 sp2 compaq server, the backup is taking over 12hours to complete when it should be taking only 4hours. I have tried to replace the drive and scsi cable and have also tried uninstalling and reinstalling the software. I am using Arcserve 2000 sp4 and have also downloaded the device service pack. I have tried increasing the buffer size to 100mb using the sharemem.exe utility, when i did this is took 4hrs to run for one day and then went back to 12 hours.

I have been told that the problem may be with the firmware but have checked the firmware version and it is 2E2E. I have tried to contact CA but have not had any luck yet.

Please Help

Michael.

 

[pemp]

Jelley,

Is this on local backups or across the wire?

Also, I have never had a problem contacting support. It is pretty easy. You could call them or e-mail them. Try this site:

http://esupport.ca.com/index.html?/cso/emea-worldwide.asp

Good luck!

 

[jelley]

By saying I have tried to contact Ca, i meant that I have contacted them but they have not been able to help as of yet, i guess i should make myself a bit clearer next time.

Also this is on a local backup.

Thanks for your help and hope to hear from you soon

Michael.

 

[speshalyst]

You have mentioned it should take only 4 hours...

When did this happen ?/ Befoire spplying SP4??

Try applying the lates DEvice patch from CA..

cheers
Speshalyst So it Shall be Written!
So it Shall be Done!!

 

[speshalyst]

You have mentioned it should take only 4 hours...

When did this happen ?/ Before applying SP4??

Try applying the lates DEvice patch from CA..

cheers
Speshalyst So it Shall be Written!
So it Shall be Done!!

 

[jelley]

It should take 4hours and has done after downloading SP4, I have also downloaded the device patch and that hasn't helped fix the situation.

Do you have any other suggestions.

Thanks

 

[Storageboy]

If it is a local backup , try doing this -

use the windows 2000 backup , check out how much time it takes and then compare it with the perfomance of arcserve 2000 by that way we can find out on who is at fault.

STORAGEBOY

 

[jabus]

Are there are lot of open files? Is there anti-virus software running on the server?

 

[jelley]

There are a few open files but not a great amount. There is anti virus software running, this is SOPHOS. I have tried stopping the AV services and this has not seemed to make a difference. In fact I have looked at the job and the situation has got worse, the backup is now taking over 30hrs. Please HELP

 

[mnatoli]

I am experiencing what I would consider slower than
expected backups after I upgraded from a DLT to an SDLT
drive. I have a Dell 128T autoloader connected to Dell
PowerEdge 2500 via Adaptec 39160 SCSI card.
Throughput is < 350MB/min for backups of about 130GB.
This throughput is the same I received on the previous DLT.
Should I be expecting better performance? I believed the
bottleneck to be the tape drive and that moving to an SDLT
would increase my throughput > 900MB/min.
What are others seeing for performance with SDLT's and
arcserve?

-Mark

 

[wamason]

Jelley,

What has changed in your environment since the last time it took only 4 hours? Are backingup the same amount of data? What was your throughput then and now?

 

[jelley]

I have found that when i run a job during the day, when users are on the network the job can take as little as four hours then when i run the job through the evening, the backup is taking 11 hours.

I really don't understand why this is.

 

[powersaj]

Bit of a shot in the dark here but have you chekced the SCSI Adapter drivers (see link). Worked like a charm for us, with MSL5000 series libraries

http://wwss1pro.compaq.com/support/reference_library/viewdocument.asp?source=EM020409_CW02.xml&dt=3

Link references the following error found in the system event log:

Event Type: Error
Event Source: adpu160m
Event Category: None
Event ID: 9 - referenced verbatim in the article
Date: 27/11/2002
Time: 17:38:16
User: N/A
Computer: BP1SUNIS007
Description:
The device, \Device\Scsi\adpu160m4, did not respond within the timeout period.

 

[mespe]

Jelley,
did you ever find out why it took so much time for the evening backups while during the day they where right? I have the same problem!