Hi Arnaud!
I have encountered this too in the past and it also took me quite some time
to figure it out. My solution was to delete the scsi device which is
emulated over the fiber channel connection.
Just issue the command rmdev -dl fscsi0 and run cfgmgr, this will probably
solve your problem too.
Let me know the result!
Kindest regards,
Eric van Loon
KLM Royal Dutch Airlines
-----Original Message-----
From: PAC Brion Arnaud [mailto:Arnaud.Brion AT PANALPINA DOT COM]
Sent: Friday, December 05, 2003 10:27
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Path to drive lost, no way getting it back ....
Hi list,
I got a strange problem 2 days ago, and still no explanation : the path
to an LTO drive located in a 3584 library was suddenly reported as
marked offline :
12/02/03 07:51:22 ANR8471E Server no longer polling drive LTO1DR4 in
library LTOLIB1 - path /dev/rmt4 will be marked off-line.
12/02/03 07:51:22 ANR8873E The path from source ADSM-PAC to destination
LTO1DR4 (/dev/rmt4) is taken offline.
I had no chance to have it back on line again, despite the fact the
drive was looking OK on AIX side. I then called IBM, that supposed
something was wrong with the drive and replaced it : still no success
Trying to delete and recreate the path gives :
12/03/03 08:47:55 ANR2017I Administrator BAR021 issued command: DEFINE
PATH adsm-pac lto1dr4 srctype=server desttype=drive device=rmt4
library=ltolib1
12/03/03 08:47:55 ANR8779E Unable to open drive rmt4, error number=2.
This drive is SCSI type, connected to a 2108 G07 san data gateway, which
detects the drive (we actually have 2 scsi connectors on the box, each
one having two LTO drives):
fcShowDevs
FC 1:
LUN Chan Id Lun Vendor Product Rev SN
-----------------------------------------------------
0 0 0 0 PATHLGHT SAN Gateway 0016 21081303263
2 1 0 0 IBM ULT3580-TD1 3512
3 1 0 1 IBM 03584L32 3060 000000010234
4 1 1 0 IBM ULT3580-TD1 3512
6 2 2 0 IBM ULT3580-TD1 3512
8 2 3 0 IBM ULT3580-TD1 3512
FC 4:
LUN Chan Id Lun Vendor Product Rev SN
-----------------------------------------------------
0 0 0 0 PATHLGHT SAN Gateway 0016 21081303263
2 1 0 0 IBM ULT3580-TD1 3512
3 1 0 1 IBM 03584L32 3060 000000010234
4 1 1 0 IBM ULT3580-TD1 3512
6 2 2 0 IBM ULT3580-TD1 3512
8 2 3 0 IBM ULT3580-TD1 3512
Drive is also looking OK on AIX side, and can be reached using tapeutil
:
lscfg -vl rmt4
DEVICE LOCATION DESCRIPTION
rmt4 11-08-01-3,0 IBM 3580 Ultrium Tape Drive (FCP)
Manufacturer................IBM
Machine Type and Model......ULT3580-TD1
Serial Number...............6811027051
Device Specific.(FW)........3512
Today I recycled all the hardware : server, 3584, SAN gateway, thinking
it could correct an eventual network error, but still got the problem:
On TSM server initialization :
12/05/03 09:18:13 ANR8470W Initialization failure on drive LTO1DR4 in
library LTOLIB1.
On attempt to redefine the path :
12/05/03 09:29:42 ANR2017I Administrator BAR021 issued command: DEFINE
PATH adsm-pac lto1dr4 srctype=server desttype=drive device=rmt4
library=ltolib1
12/05/03 09:29:42 ANR8420E DEFINE PATH: An I/O error occurred while
accessing drive LTO1DR4.
I'm really lost, has anyone an idea of what could be happening here ?
Many thanks in advance !!!
Arnaud Brion
***********************************************************************
Panalpina Management Ltd., Basle, Switzerland, CIT Department
Viadukstrasse 42, P.O. Box 4002 Basel/CH
Phone: +41 (61) 226 11 11, FAX: +41 (61) 226 17 01
Direct: +41 (61) 226 19 78
e-mail: arnaud.brion AT panalpina DOT com
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