The Device I/O error is usually an indication that the I/O to and from the tape device was interrupted. Events such as a SCSI bus reset will always cause this type of error. Assuming that you have the latest drivers/firmware and that all cabling and termination is setup properly, make sure that the operating system RSM service is disabled. Check the operating system's application and system event viewer. The system event viewer will list event error that led up to the problem.
A dirty drive usually does not cause this type of error.
Since your short differential backups always work ok, this could indicate that the problem will occur only long periods of time such as the case in your full backups.
I've done extensive testing. I have a backup job that fills a single tape to 99%. I can run a job against a single tape 3 or 4 times without error, backup runs, verify completes. No problem.
My production job, which spans two tapes, fails 2/3 of the time with "The data being read from the media is inconsistent."
The knowledgebase appears to indicate that setting "Use Fast File Restore" to '0' will fix this . However, the same document that gives this tip also says 'Do not leave "Use Fast File Restore" set to zero. As soon as the restore operation is complete, set the value back to one. Do not run backup jobs while the registry value is zero.'
HELLO, VERITAS! IS ANYONE HOME??? The title of the document is "Event ID 57612: "A format inconsistency was encountered during a tape read operation on device "%device%"." is reported in the Event Viewer when the VERITAS Backup Exec Job Engine or Remote Agent encounters an inconsistency in the data format on the media during a read operation (restore, verify, and so on)."
How can I disable 'Fast File Restore' for a verify job that 1) runs at 2:30 AM Sunday AND 2)IS PART OF A *#@*#@!!! BACKUP JOB. This document offers a solution to a problem then says I can't use the solution!!!
I suspect the problem is in the "Read single block mode" and "Read SCSI pass-through mode" settings in BackupExec BUT I CAN'T FIND THE (expletive deleted) RECOMMENDED SETTINGS FOR THE DELL PV-122T-DLT-VS80 ANYWHERE.
Does anyone have any pointers to where the official "Do's and don't's" for using this device with BackupExec can be found???
richard_g
25 Posts
0
January 5th, 2004 20:00
The Device I/O error is usually an indication that the I/O to and from the tape device was interrupted. Events such as a SCSI bus reset will always cause this type of error. Assuming that you have the latest drivers/firmware and that all cabling and termination is setup properly, make sure that the operating system RSM service is disabled. Check the operating system's application and system event viewer. The system event viewer will list event error that led up to the problem.
A dirty drive usually does not cause this type of error.
Since your short differential backups always work ok, this could indicate that the problem will occur only long periods of time such as the case in your full backups.
AllTheGoodScree
9 Posts
0
June 14th, 2004 01:00
I've done extensive testing. I have a backup job that fills a single tape to 99%. I can run a job against a single tape 3 or 4 times without error, backup runs, verify completes. No problem.
My production job, which spans two tapes, fails 2/3 of the time with "The data being read from the media is inconsistent."
The knowledgebase appears to indicate that setting "Use Fast File Restore" to '0' will fix this . However, the same document that gives this tip also says 'Do not leave "Use Fast File Restore" set to zero. As soon as the restore operation is complete, set the value back to one. Do not run backup jobs while the registry value is zero.'
HELLO, VERITAS! IS ANYONE HOME??? The title of the document is "Event ID 57612: "A format inconsistency was encountered during a tape read operation on device "%device%"." is reported in the Event Viewer when the VERITAS Backup Exec Job Engine or Remote Agent encounters an inconsistency in the data format on the media during a read operation (restore, verify, and so on)."
How can I disable 'Fast File Restore' for a verify job that 1) runs at 2:30 AM Sunday AND 2)IS PART OF A *#@*#@!!! BACKUP JOB. This document offers a solution to a problem then says I can't use the solution!!!
I suspect the problem is in the "Read single block mode" and "Read SCSI pass-through mode" settings in BackupExec BUT I CAN'T FIND THE (expletive deleted) RECOMMENDED SETTINGS FOR THE DELL PV-122T-DLT-VS80 ANYWHERE.
Does anyone have any pointers to where the official "Do's and don't's" for using this device with BackupExec can be found???