cancel
Showing results for 
Search instead for 
Did you mean: 

S/W state No_HW

CU_1
Occasional Advisor

S/W state No_HW

we are using MSL6000 tape library for Backup, It is installed with two hp rx4640 servers when I run ioscan I found the S/W state for tape drive is NO_HW. also, the following message appeare in the Data Protector Manager:
"From: BMA@tudb1.tu.edu.sa "HP:Ultrium 2SCSI_1" Time: 7/7/2010 8:10:30 AM
Device address not found."
and the Backup now is taken by the second server that has no problem with tape drive.
I need help to solve this problem and I need to know what's happen to the driver to be in this state?
6 REPLIES
Steven E. Protter
Exalted Contributor

Re: S/W state No_HW

Shalom,

The tape drive is either powered down or there is a problem.

Check:
SCSI ID for conflict
Cables for being snug and not damaged.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Prashanth.D.S
Honored Contributor

Re: S/W state No_HW

Hi,

NO_HW status means that the system is unable to recognize the device connected, could be issue with the cable connected across or the controller.

Best Regards,
Prashanth
Suraj K Sankari
Honored Contributor

Re: S/W state No_HW

Hi,

NO_HW means system not detecting the hardware which attached to system.
check cable, connecter (if used) and the tape drive itself.

Suraj
CU_1
Occasional Advisor

Re: S/W state No_HW

If it is powered down why it is working with the second server? I have already checked the cables every thing looks normal.
Bill Hassell
Honored Contributor

Re: S/W state No_HW

> it is working with the second server?
> I have already checked the cables every thing looks normal.

So the tape drive is OK and the (I assume) fibre cables seem to be plugged in. I'll assume that the tape drive is part of a SAN switch, so the next step is to login to the switch and verify that you can see the first server is visible and that the switch has zoned the tape drive to both systems at the same time.

The NO_HW message means that I/O card probed the address where the tape drive was located in the past and got no response.


Bill Hassell, sysadmin
Torsten.
Acclaimed Contributor

Re: S/W state No_HW

> Backup now is taken by the second server that has no problem with tape drive.

Same library? Same drive?

So the library must be OK and the problem is somewhere between server and library (FC cables, HBA, switch).

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

If you feel this was helpful please click the KUDOS! thumb below!