ioscan -fnC claimed and ioscan -fnH no HW

[Ludovic Derlyn]

Hi,

I have a problem on servers rx2620 with hpux 11iv2
When I execute ioscan -fnC tape for example , it's appears "claimed"
if I execute ioscan -fnH 0/1/1 all is no HW
Once time , i have encountered this problem, and when i activate driver c8xx, pb is resolved
Here module c8xx is ok and i have tested others modules SCSI, nothing to do
I have applied recent patch for scsi and updated driver scsi u320 , but the problems persists
Have you an idea ?

ioscan -fnC tape
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
tape 0 0/1/1/1.3.0 stape CLAIMED DEVICE HP C5683A
/dev/rmt/0m /dev/rmt/c3t3d0BESTn
/dev/rmt/0mb /dev/rmt/c3t3d0BESTnb
/dev/rmt/0mn /dev/rmt/c3t3d0DDS
/dev/rmt/0mnb /dev/rmt/c3t3d0DDSb
/dev/rmt/c3t3d0BEST /dev/rmt/c3t3d0DDSn
/dev/rmt/c3t3d0BESTb /dev/rmt/c3t3d0DDSnb


ioscan -fnH 0/1/1
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
ext_bus 2 0/1/1/0 mpt NO_HW INTERFACE SCSI Ultra320
/dev/mpt2
target 3 0/1/1/0.0 tgt NO_HW DEVICE
disk 1 0/1/1/0.0.0 sdisk NO_HW DEVICE HP 73.4GST373454LC
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
/dev/dsk/c2t0d0s1 /dev/rdsk/c2t0d0s1
/dev/dsk/c2t0d0s2 /dev/rdsk/c2t0d0s2
/dev/dsk/c2t0d0s3 /dev/rdsk/c2t0d0s3
target 4 0/1/1/0.1 tgt NO_HW DEVICE
disk 2 0/1/1/0.1.0 sdisk NO_HW DEVICE HP 73.4GST373454LC
/dev/dsk/c2t1d0 /dev/rdsk/c2t1d0
/dev/dsk/c2t1d0s1 /dev/rdsk/c2t1d0s1
/dev/dsk/c2t1d0s2 /dev/rdsk/c2t1d0s2
/dev/dsk/c2t1d0s3 /dev/rdsk/c2t1d0s3

[Jaime Bolanos Rojas.]

Ludovic, have you already tried rebuilding your device files?

If not try insf -e

Regards,

Jaime.

[James R. Ferguson · Accepted solution]

Hi:

From the 11iv2 man pages for 'ioscan':

With the '-H' switch, "Scanning below the bus level will not probe the hardware and may produce incorrect results. For example, specifying the path at the target level will always change the state of the device attached to it as NO_HW. The state of the device may be restored by retrying ioscan from a bus node above the NO_HW node."

Regards!

...JRF...

[Torsten.]

This is pretty normal.

Try

# ioscan -H 0/1

and everything will look good, because 0/1 is LBA.

See man ioscan.

[Torsten.]

This is normal,

"... Scanning below the bus level will not probe the
hardware and may produce incorrect results. For
example, specifying the path at the target
level will always change the state of the
device attached to it as NO_HW..."

See "man ioscan".

"ioscan -H" makes only sense if the hw-path is exactly a LBA device.

In your case this should be

# ioscan -H 0/1

[Mridul Shrivastava]

This is a known issue and also documented
in the man page of command so no fix available for it.

[Ludovic Derlyn]

I have tried , and it's OK

thanks a lot !

[Torsten.]

Points are always welcome, if you find the answers helpful

;-))

Welcome to the forums!

[Ludovic Derlyn]

Ok for points, i will discover it !!
thanks !