Backup Jobs run around 390 MB/Min where restores & verify runs at 32MB/Min?

Here is what I have.
My Exchange server is Win2000 SP4 with Exchange 2000 latest SP.
Compaq ML370, dual processors, 500MB RAM.
Information Store=8GB
Compaq RAID5, Acceleration turned on.
Tape drive is a Cybernetics Library (IBM Ultrium LTO-2) connected via iSCSI.
Veritas Backup Exec 9.1 with latest patches.
Hardware compression if available, otherwise none.

When I do a backup, I get close to 400MB/Min. But as soon as it does a verify, It goes down to 32MB/Min.
I am testing a restore right now and it is restoring at 32GB/Min.

Do these numbers sound right?

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Duncan MeyersCommented:
No! The verify should run at about the same speed as the backup. The restore will be slower because of teh RAID 5 array, but I'd expect reasonable performance (sorry - I don't know the Compaq kit so I can't give you a typical figure).

With a fibre channel LTO-2, I expect to see 1.2GB/minute backup and over 2GB/min verify. Restore is typically 1GB/min.

If the library is directly connected to a SCSI card (not iSCSI) does it work properly?

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
InfoSysNetworksAuthor Commented:
That I need to find out. I only have the RAID controllers in the server and need to install another SCSI card. The whole iSCSI configuration has been a nightmare! I'll let you know.
Also make sure in device manager that you are using Veritas drivers for the tape drives - they always seem to get better throughput.
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

Duncan MeyersCommented:
Hmmm... I'd like to know what the resolution is...
InfoSysNetworksAuthor Commented:
I have a tech call open right now. So I will advise when I get a resolution.
LucFEMEA Server EngineerCommented:
Any update on this yet?

InfoSysNetworksAuthor Commented:
Sorry. Forgot to close it. After all this testing. I sent the drive back and they found hw problems. They sent me a new drive and all is ok.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.