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тАО10-16-2002 01:09 AM - last edited on тАО03-05-2014 05:49 PM by Lisa198503
тАО10-16-2002 01:09 AM - last edited on тАО03-05-2014 05:49 PM by Lisa198503
We have noticed several times that our DAT24 surestore unit seems to power off by itself. This problem is present in one DAT24 drive in a Netserver E800 and another DAT24 drive in a Netserver E60 both running linux SuSE 7.1, but these units have been operative with no problems for more than a year.
No led and no eject button are operative until you reboot the server and no log messages are left.
We have tried to interchange the power cords but it still fails.
Any ideas? Is this a problem with the units or it's more likely to be a problem with the power supply?
Thank you very much in advance.
P.S. This thread has been moved from Disk to Tape Libraries and Drives. -HP Forum Moderator
Solved! Go to Solution.
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тАО10-16-2002 02:09 AM
тАО10-16-2002 02:09 AM
Re: HP Surestore DAT24 power problem
looks like DAT drive goes to powersaving mode :-) just joking. This should not happen. What I would recommend is to check at which time this drive goes offline (for example, after 4 hours of normal work), then get it outside server and connect to known good power supply only (w/o SCSI connection) and check if it will do the same. If yes, I would suspect drive (or its firmware, try updating it with HP Library and Tape Tools available from www.hp.com), but if no then I would research Netserver PSU, SCSI bus (cable, termination, controller) or any program which can cause DAT to go to "uncounscious" state.
Do you know that DAT (DDS) drives should be cleaned every 20 tape pulling hour or after 5 full backups (usually after business week)?
Eugeny
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тАО05-08-2003 11:34 PM
тАО05-08-2003 11:34 PM
SolutionI found a solution to my problem eventually and it goes like this..
1. Change the SCSI ID of the tape drive, making sure that it doesn't clash with the card's ID.
2. If you have an Adaptec SCSI controller, then reboot your server and hit Ctl+A, to enter the SCSI bios, then one of the option's should be to auto disconnect SCSI ID X, somewhere within the bios. Find the ID that your drive is assigned to and hit NO!. This should stop the drive from dropping off of the SCSI bus when the drive is inactive.
3. Swap over power connector with CDROM
4. Power server back up
If you still get problems then check termination and reseat of SCSI cables.
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тАО05-11-2003 02:07 AM
тАО05-11-2003 02:07 AM
Re: HP Surestore DAT24 power problem
I had some of this behaviour especialy when the tape is full, the BU SW ask for a new tape, but do never issue a rewind or a eject, so everything apear hang.