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тАО08-30-2001 04:31 PM
тАО08-30-2001 04:31 PM
DDS4 IO Error using BackupExec
Storage device "HP 2" reported an error on a request to write data to media.
Error reported:
The request could not be performed because of an I/O device error.
^ ^ ^ ^ ^
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тАО08-31-2001 10:30 PM
тАО08-31-2001 10:30 PM
Re: DDS4 IO Error using BackupExec
What you could do is to download Library and tape tools from the HP site and test the drive with this tool.
http://www.hp.com/cposupport/information_storage/software/ltt_27_eng.exe.html
regards,
Cal.
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тАО09-02-2001 06:59 PM
тАО09-02-2001 06:59 PM
Re: DDS4 IO Error using BackupExec
Cheers,
Shawn Lucas
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тАО04-24-2002 06:41 AM
тАО04-24-2002 06:41 AM
Re: DDS4 IO Error using BackupExec
We have used the latest Library and Tapetools for testing the drive. We have set the SCSI configuration to a maximum of 20 Mb/s.
The tapes are not older than 4 months. We keep on getting these error messages as shown below and have not been able to solve the problem to our satisfaction.
......
Verify started on 4/24/2002 at 2:13:49 AM.
Storage device "HP 2" reported an error on a request to read data from media.
Error reported:
Data error (cyclic redundancy check)
^ ^ ^ ^ ^
Kind regards,
Lucas Goemans
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тАО07-02-2002 06:52 PM
тАО07-02-2002 06:52 PM
Re: DDS4 IO Error using BackupExec
The solution turned out to be a faulty SCSI controller. I was using a Tekram DC315U, austensibly much faster than the older DDS-3 standard, but I would inevitably get an I/O error on writes. The real kicker is that they would occur anywhere from 16megs to 2gigs of tape already run through. There was nothing "defective" about the SCSi controller, but it just didn't seem to provide a clean data stream to the tape, regardless of driver or firmware revision.
I replaced the Tekram with an old Adaptec 2940UW, an ovbious overkill for just a tape drive, but the problem has disappeared.
Hope that helps you!
Jeff Poole
jeff@clarityinc.biz