topic Re: Device Busy in Operating System - HP-UX

Device Busy

prasad keshav — Tue, 23 Nov 2004 23:36:03 GMT

Hi,

When I check for the available devices through Command Scripter on Tru64 UNIX,I find the system message, "device busy" on 3 devices.
These devices are not really busy.And due to this, there is a performance degradation on the product.Could anybody help me out >>

regards
prasad

Re: Device Busy

Ravi_8 — Tue, 23 Nov 2004 23:41:58 GMT

Hi Prasad

#ps -aef
check for processes running sonce long time and whether they are related to those devices. other a reboot will do

Re: Device Busy

prasad keshav — Tue, 23 Nov 2004 23:49:05 GMT

No Ravi, I rebooted the machine twice. But still getting the same message.

regards
prasad

Re: Device Busy

Ravi_8 — Tue, 23 Nov 2004 23:57:09 GMT

Hi,

post the o/p of the script

Re: Device Busy

prasad keshav — Wed, 24 Nov 2004 00:04:37 GMT

Gimme some time and i'll surely get back to u.Thanks for showing interest.

regards
prasad

Re: Device Busy

prasad keshav — Mon, 29 Nov 2004 00:42:06 GMT

hi,

Here is the o/p of the script

Trying to open device /dev/disk/dsk95c
Open failed on device...../dev/disk/dsk95c
Open failed :: Device busy

Trying to open device /dev/disk/dsk96c
Open failed on device...../dev/disk/dsk96c
Open failed :: Device busy

regards
prasad

Re: Device Busy

Sheriff Andy — Mon, 29 Nov 2004 19:38:07 GMT

I had this problem once before. It ended up that I was using a disk on my SAN that someone else was trying to use at the same time. Just curious if your disks are on a SAN. If they are, check to see if they aren't in use by another system.

regards,
Andy