topic Backup in Operating System - HP-UX

Backup

Petitjean — Mon, 24 Jun 2002 08:27:19 GMT

Re: Backup

Peter Kloetgen — Mon, 24 Jun 2002 08:32:53 GMT

Hi Petitjean,

is it possible that you use bad tape?

Check this out using dd- command:

dd if=/dev/null of=/dev/rmt/0 bs=64K

If your tape is bad, the command should fail and you will get an error message. If the command succeeds, possibly your tape drive must be cleaned or has a defect.

Allways stay on the bright side of life!

Peter

Re: Backup

Rainer von Bongartz — Mon, 24 Jun 2002 08:33:37 GMT

I suspect a bad tape .

Eject the tape; load a new one and try again.

Regards
Rainer

Re: Backup

Tim D Fulford — Mon, 24 Jun 2002 08:34:01 GMT

according to the EMS log the tape is not very good/broken. quote from the EMS log

/The directory data on the tape cartridge has been corrupted. File search
performance will be degraded. Do not use this tape for further backup
operations./

I would try cleaning the DLT & use a NEW tape, though I did notice that your current tape was only used once.

You may also want to check out the SCSI patches & any patches for DLT (if any)

Tim

Re: Backup

Ceesjan van Hattum — Mon, 24 Jun 2002 08:37:37 GMT

Sense Key 0x03.. this is what you found. You can look it up at: http://docs.hp.com/hpux/content/hardware/ems/scsi.htm#100772

Sense Key 0x03 equals Code:0x03.

Code:0x03 Qualifier:0x00 Key:0x04 Status:0xXX
Device: ALL
Severity: CRITICAL
Event Summary: Hardware failure
Problem Description: While attempting to process an I/O request, the device reported that it was unable to perform the requested write operation due to a peripheral device write fault. The corresponding I/O request may have been processed in a way which could cause damage to or loss of data.
Probable Cause / Recommended Action: The device has experienced a hardware failure. Repair or replace the device, as necessary.

What is there more to see.. try to change tapes. If problems do not disappear, call supportdesk / hardware supplier for replacement of device.
Regards,
Ceesjan
ps. If the 'amber'-led is flashing, use a cleaning tape before calling them..

Re: Backup

Petitjean — Mon, 24 Jun 2002 08:45:11 GMT

Thank you for your response.

I Tried the following command :
dd if=/dev/null of=/dev/rmt/0m bs=64k

The result is :
0+0 records in
0+0 records out

Moreover, the tape I use is a new tape and last time we used cleaning tape is last week.

Re: Backup

Rainer von Bongartz — Mon, 24 Jun 2002 10:23:01 GMT

doing a dd with if=/dev/null will always result in

0+0 records in
0+0 records out

use any other device od regular file as input

Regards
rainer