topic Re: Performance with VS80 in StoreEver Tape Storage

Performance with VS80

Andrew Moore_3 — Mon, 07 Jun 2004 11:37:38 GMT

I recently upgraded to servers that were using DLT 4000 to VS80s and performance sucks! Using BrightStore 11 as the backup software. Have run HP tape tools and all looks ok. Using firmware V063/HP01. Any suggestions? Were can I change the Buffer Size?

Thanks.

Re: Performance with VS80

Marino Meloni_1 — Mon, 07 Jun 2004 17:33:59 GMT

http://h10025.www1.hp.com/ewfrf/wc/genericDocument?lc=en&cc=us&docname=lpg50167

You do not specify the OS, I suppose it is windows

Re: Performance with VS80

Andrew Moore_3 — Tue, 08 Jun 2004 08:07:07 GMT

Using it with 2000 and 2003 server. Same problem on each OS. Thanks for the link but tried to find similar registry settings (article about ArcServe 6.x) but did not have any luck. Also tried updating the drivers in case they got replaced by a Service Pack but no luck their. Any other suggestions?

Re: Performance with VS80

Andrew Moore_3 — Thu, 17 Jun 2004 12:19:45 GMT

Finally was able to contact CAI and they and HP are woking on a fix. Apparently I'm not the only one. But who knows when it will come out. For now NTBackup...

Re: Performance with VS80

Kivanc Oskay — Tue, 22 Jun 2004 07:30:36 GMT

Hi,
stop the "CA Brighstor Tape Engine" service and locate the following registry folder with regedt32.exe; "HKLM/Software/Computer Associates/Brighstor ARCserve Backup/Base/TapeEngine/DEVICE#/" -look "Info" value for which device# is your dlt has-, then ADD DWORD value

data type= Reg_Dword
valuename= DefaultBlockFactor
data= 7, Hex.

then start the "CA Brightstor Tape Engine service" and back-up your files :)

Re: Performance with VS80

Allan_24 — Wed, 23 Jun 2004 04:52:55 GMT

Hi,

Have you tried to use Windows Ntbackup? If yes and with d'same performance.

Try this:

1. Make sure that Removable Storage Manager Services is disabled (under computer mangt. console)if your utilizing 3rd party backup software.

2. Try to backup flat files or not in-use files.

3. (Optional)Your software is equiped with Backup to disk feature, why don'y you try this and compare the backup disk rate from your tape box speed.

Hope this helps,

Regards

Re: Performance with VS80

Andrew Moore_3 — Wed, 23 Jun 2004 07:58:51 GMT

I've been in contact with CAI and they have created a fix for the problem. Apparently I'm not the only one. :-)

Apreciate your feedabck.

Re: Performance with VS80

Stephen Patterson_1 — Wed, 29 Dec 2004 02:58:05 GMT

Andrew I Have the exact same problem, I only get 8mb per minutem is there a patch to download?

Re: Performance with VS80

Kivanc Oskay — Wed, 29 Dec 2004 04:05:28 GMT

hi,
why don't you just scroll up? i wrote the solution for windows on Jun 22, 2004..
--
Kivanc Oskay
System Support Specialist

Cozum Bilgisayar Ltd.

Re: Performance with VS80

juhani lindström — Wed, 26 Jan 2005 05:27:03 GMT

Hi

I'm having the same problem. I Tried the registry fix (add DefaultBlockFactor, value 7) but when tape engine starts it deletes that key. OS is windows 2000 server standard edition. Arcserver versio is 2000 advanced editon.
Any ideas would be greatly appreciated.

Juhani

Re: Performance with VS80

Kivanc Oskay — Fri, 28 Jan 2005 03:09:09 GMT

Hi Juhani,
do not change registry when the service in running state. please try first stopping engine (be sure its stopped) then make registry change then start engine.
if you make registry change while the tape engine service in running state and restart the service, it overwrites the registry.
--
Kivanc Oskay