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12/24Gb DAT

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Robert Bokros
Occasional Advisor

12/24Gb DAT

I use the same 5 tapes per week,one each day.
One stops working so I guess it has expired as it is 4 year old. I buy a new pack of 5 tapes, DDS3 12Gb/24Gb and cannot get them to work, Veritas just aborts the backup, and puts the job on hold,but I can label the new tapes OK.
The original tapes, 4 left,still work OK.
Any suggestions please?
19 REPLIES
Devender Khatana
Honored Contributor

Re: 12/24Gb DAT

Which OS & Veritas version you are running on ? As you told you are be able to label media but can not write to it. How did you verify and labeled it ? Does old media also was DDS3 only? Because it may be a compatibility issue of DDS3 media with your drive.

Regards,
Devender
Impossible itself mentions "I m possible"
Dorothee Singer
Frequent Advisor

Re: 12/24Gb DAT

i would also suppose that there is a compability problem with your tape drive.
perhaps you can try to write on the new tapes with tar - if this also does not work, you know that your drive can not manage those tapes.

yours,
doro
Computers make very fast, very accurate mistakes
Robert Bokros
Occasional Advisor

Re: 12/24Gb DAT

Using W2K and Veritas Backup Exec 8.6 Server.
I renamed the tape 'Wednesday' to ensure I could write to it.
Two of the old tapes stopped working which is why I bought new. I have ran the cleaner 5 times to see if this helps but does not.
Is there a command in DOS to test the tape drive?
Maybe I just get a new tape drive?
Mobeen_1
Esteemed Contributor

Re: 12/24Gb DAT

Robert,
Can you please provide us with the following information -
1. Tape Drive you are using ?
2. What is the tape media you are using?

regards
Mobeen
Robert Bokros
Occasional Advisor

Re: 12/24Gb DAT

Hello

I am using a 12/24Gg HP DAT C1537A SCSI Sequencial Device.

The tapes are TDK DDS-3 4mm Data 12/24Gb.

Rob
Devender Khatana
Honored Contributor

Re: 12/24Gb DAT

Robert,

I don't think there is some dos command in w2k to test this out, But you can surely use inbuilt backup utility of w2K. The path is

Programs->Accessories->System Tools->backup

I do't think this will help much but you will surely be able to come a conclusion that your drive is faulty.

HTH,
Devender
Impossible itself mentions "I m possible"
Terry Auspitz
Frequent Advisor
Solution

Re: 12/24Gb DAT

Within Veritas, if you check the job history are there any error messages?
Robert Bokros
Occasional Advisor

Re: 12/24Gb DAT

I have looked at the veritas job logs and it says failed and the event log and there is no messages.
Terry Auspitz
Frequent Advisor

Re: 12/24Gb DAT

Within Backup Exec, on the activity monitor tab, right click on a failed job (preferably the first one) and click properties. Click the job log tab, then scroll through the log to look for any errors.

Errors will usually, but not always, be indicated with "^ ^ ^ ^" markers under the error... the line or lines above that are the error.

If the job aborted, a reason will often be listed here as well.

If you could paste the job log or at least the error lines in here it would be tremendously helpful. Feel free to ---- out any file or server names if you need to.

-Terry
Robert Bokros
Occasional Advisor

Re: 12/24Gb DAT

======================================================================
Job server: SERVER
Job name: Daily Backup
Job started: 01 February 2005 at 13:33:09
Job type: Backup
Job Log: BEX31.txt
======================================================================

Drive and media information from media mount:
Robotic Library Name:
Drive Name: HP Server Tape
Slot: 0
Media GUID: {3404482F-2F00-4BF4-9C96-CF81C81D9671}
Media Label: Wednesday
Overwrite Protection Time Left: None
Append Time Left: Infinite
Targeted Media Set Name: Media Set 1

======================================================================
Job Operation - Backup
Media operation - overwrite.
Hardware compression enabled.
======================================================================

======================================================================
Job ended: 01 February 2005 at 13:34:13
Job completion status: Failed
======================================================================
Terry Auspitz
Frequent Advisor

Re: 12/24Gb DAT

Well dang... that doesn't give us much to go on, now does it? The only other thing I can think of is to check the server's event log for any events related to the drive or SCSI controller.

I might also run a cleaning tape before trying the new tapes again (new tapes dirty the drive faster than old ones)

If none of this helps, and your old tapes are still working, I would conclude the new tapes are defective and return them to your place of purchase for an exchange.

-Terry
Robert Bokros
Occasional Advisor

Re: 12/24Gb DAT

I ordered a new tape drive HP DAT 24i c1555D. I used the new tape which came with it. I reloaded veritas 8.6 Windows 2k driver. still the same..... HELP! PLEASE.
Terry Auspitz
Frequent Advisor

Re: 12/24Gb DAT

Wow... same problem even with a new drive? The old tapes work and the new ones don't?

-Terry
Robert Bokros
Occasional Advisor

Re: 12/24Gb DAT

Yes,

I am down to 2 working older tapes.This is driving me mad. Could this be a virus?
Peter Godron
Honored Contributor

Re: 12/24Gb DAT

Robert,
I assume you have scanned all the answers on:
http://seer.support.veritas.com/NAV_BAR/clustersearch.asp?
The first answers always recommend virus check. As you are down to last few tapes, may be worth a direct call to Veritas engineer.
Regards
Robert Bokros
Occasional Advisor

Re: 12/24Gb DAT

I have a virus checker, but it does not appear to find any problem viruses.
Robert Bokros
Occasional Advisor

Re: 12/24Gb DAT

OK, have found the problem, but not the remedy.

I bought a new tape DAT with the same results!
I put the old DAT back into my older server and all the tapes old, new, junk, work OK.
So, I believe I have a virus problem with W2K as I have already reinstalled Veritas.
Also I have a DNS problem which until today I have considered unrelated. I have a virus checker up to date and running, and I have run the virus checker from the Symantec website with no virus detected. I think I have a nasty problem , is there a program which will detect and repair my issues please?
Marino Meloni_1
Honored Contributor

Re: 12/24Gb DAT

I would suggesst some test in order to understand if you have a hardware problem or a sw one.
Could you run the LTT sw and attach a sticket to the forum for analysis, running the tool usualy can give you some answer related to the status of the DAT. You can run read/write test on the old and on the new tapes, and compare the result.
The DDS3 tape drive may have some deformations ont the read/write head due to the wearing, and when using for long time the same tapes, it may be that he can just read/write these. A "calibration" process may be issued with LTT in order to adjust some parameters of the heads, and correcting some situations. This can be the cause of the errors on the new tapes

marino
Robert Bokros
Occasional Advisor

Re: 12/24Gb DAT

The old tapes work fine in with the old DAT in an old server, so it cannot be the tapes or the DAT. It must be a W2K probelem , no?