CentOS 4.8
Hi All:
We recently had a Sony SDX-500V tape drive fail on one of our servers running CentOS 4.8. I have now replaced it with a spare SDX-500C. The problem that I am having now is that the failed drive had ceased responding to SCSI commands and we have since rebooted the system which resulted in the tape drive being removed from our current hardware configuration and the system does not recognize the new tape drive.
I know that I can just reboot the system and kudzu will add the tape drive back in during the boot process however I was wondering if it would be possible to manually run kudzu to add the drive or am I just "borrowing trouble" by trying to do this?
TIA
Regards, Hugh
On Thu, May 27, 2010 at 6:14 PM, Hugh E Cruickshank hugh@forsoft.com wrote:
CentOS 4.8
Hi All:
We recently had a Sony SDX-500V tape drive fail on one of our servers running CentOS 4.8. I have now replaced it with a spare SDX-500C. The problem that I am having now is that the failed drive had ceased responding to SCSI commands and we have since rebooted the system which resulted in the tape drive being removed from our current hardware configuration and the system does not recognize the new tape drive.
I know that I can just reboot the system and kudzu will add the tape drive back in during the boot process however I was wondering if it would be possible to manually run kudzu to add the drive or am I just "borrowing trouble" by trying to do this?
TIA
Regards, Hugh
You could try to rescan the SCSI bus: http://jeff.blogs.ocjtech.us/2008/05/how-to-re-scan-scsi-bus-on-linux.html
More info: http://kbase.redhat.com/faq/docs/DOC-3942
From: Brian Mathis Sent: May 27, 2010 15:27
On Thu, May 27, 2010 at 6:14 PM, Hugh E Cruickshank hugh@forsoft.com wrote:
I know that I can just reboot the system and kudzu will add the tape drive back in during the boot process however I was wondering if it would be possible to manually run kudzu to add the drive or am I just "borrowing trouble" by trying to do this?
You could try to rescan the SCSI bus:
http://jeff.blogs.ocjtech.us/2008/05/how-to-re-scan-scsi-bus-on-linux.html
More info: http://kbase.redhat.com/faq/docs/DOC-3942
Hi Brian:
That did the trick.
Thank you muchly.
Regards, Hugh
-- Hugh E Cruickshank, Forward Software, www.forward-software.com
On 5/27/2010 6:14 PM, Hugh E Cruickshank wrote:
CentOS 4.8
Hi All:
We recently had a Sony SDX-500V tape drive fail on one of our servers running CentOS 4.8. I have now replaced it with a spare SDX-500C. The problem that I am having now is that the failed drive had ceased responding to SCSI commands and we have since rebooted the system which resulted in the tape drive being removed from our current hardware configuration and the system does not recognize the new tape drive.
I know that I can just reboot the system and kudzu will add the tape drive back in during the boot process however I was wondering if it would be possible to manually run kudzu to add the drive or am I just "borrowing trouble" by trying to do this?
TIA
Regards, Hugh
When you say the 'system' no longer recognizes the tape drive, are you sure the SCSI controller even detects the tape drive during boot? From what I've seen, tape drives use the generic tape driver and get mapped to /dev/stX.
Ryan Manikowski
From Ryan Manikowski Sent: May 27, 2010 18:42
When you say the 'system' no longer recognizes the tape drive, are you sure the SCSI controller even detects the tape drive during boot? From what I've seen, tape drives use the generic tape driver and get mapped to /dev/stX.
I know that it will recognize it on a reboot however I did not want to wait until a reboot was convenient. I was looking for a way to add the drive without having to do a reboot. Brian's suggestion has worked and I am now using the tape drive without having to do a reboot.
Regards, Hugh
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Brian Mathis -
Hugh E Cruickshank -
Ryan Manikowski