ADSM-L

Re: AIX question

2003-01-06 20:11:52
Subject: Re: AIX question
From: "Davidson, Becky" <Becky.Davidson AT SLBG DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 6 Jan 2003 18:47:36 -0600
Delete the two hdisk again.  Run cfgmgr again.  Check it and if you see the
same type of pattern of 1 vpath showing 4 and the other 2 showing only one
then the shark guy needs to recheck his configuration.  If you see a
different pattern try running cfgmgr again.  There was a problem awhile back
that you need to run cfgmgr x's with x being the number of paths so that you
would get all of the paths.  Sometimes we have had to delete and run cfgmgr
again because it doesn't seem to work right the first time.  After delete
and rerunning cfgmgr it seems to work better.  Something you might want to
get your hands on is the Shark Gotcha's document.  I think it is still on
the storage page but if not email me off list and I will send it to you.
Another issue you might run into is that the devices may not be fully
formatted.  There was a version of the shark code that said that everything
was formatted yet it wasn't.  The only way you could tell was to go into the
shark under where you configure paths and refresh the screen.

good luck and let me know if I can be of further assistance
Becky

-----Original Message-----
From: Todd Lundstedt [mailto:Todd_Lundstedt AT VIA-CHRISTI DOT ORG]
Sent: Monday, January 06, 2003 4:50 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: AIX question


First, let me say..
Dear Lord, the IBM web pages are a pain to dig through and find what you
are looking for.  Couldn't find any knowledge bases or anything to help me
resolve the issue I have... so.. here goes.

AIX 4.3.3
My TSM server is a pSeries with two Fibre Channel Adapters installed,
through which we access data on the ESS (shark) and the LTO tape drives (I
know, bad idea).  Each of the fibre cards is connected to its own fibre
switch.  Each switch has two connections to the Shark (four data paths to
the Shark).

We have been trying to add some additional Shark storage to the TSM server.
After the Shark guy did his thing, I ran cfgmgr, and thinks didn't look
quite right.  The two old "vpath" devices each showed four disks (hdsikX),
two on each of the two fibre cards (fscsi1, fscsi0), just like they always
have.  One of the three new "vpath" devices showed four hdisks on two
different "fscsi" devices, but the other two "vpath" devices only showed
two hdisks, one on each fscsi.

lscfg showed a bunch of new disks, mostly "available", but four were
"defined".  I decided to delete the three new "vpath" devices, and all of
the associated "hdisk" devices, including the defined ones.  As I got to
looking, I saw something odd...

++++++++++++++++
root@ax-dco-tsm / # lsdev -Cc disk
hdisk0  Available 10-88-00-8,0 16 Bit LVD SCSI Disk Drive
hdisk1  Available 10-88-00-9,0 16 Bit LVD SCSI Disk Drive
hdisk18 Available 10-68-01     IBM FC 2105F20
hdisk19 Available 10-68-01     IBM FC 2105F20
hdisk20 Available 10-68-01     IBM FC 2105F20
hdisk21 Available 10-68-01     IBM FC 2105F20
hdisk22 Available 10-78-01     IBM FC 2105F20
hdisk23 Available 10-78-01     IBM FC 2105F20
hdisk24 Available 10-78-01     IBM FC 2105F20
hdisk25 Available 10-78-01     IBM FC 2105F20
vpath3  Available              Data Path Optimizer Pseudo Device Driver
vpath4  Available              Data Path Optimizer Pseudo Device Driver
hdisk2  Defined   10-78-01     IBM FC 2105F20 ****
hdisk2  Defined   10-68-01     IBM FC 2105F20 ****
hdisk3  Defined   10-68-01     IBM FC 2105F20 ****
hdisk3  Defined   10-68-01     IBM FC 2105F20 ****
root@ax-dco-tsm / # datapath query device

Total Devices : 2


DEV#:   0  DEVICE NAME: vpath3  TYPE: 2105F20   SERIAL: 00719516
================================================================
Path#              Adapter/Hard Disk    State     Mode     Select
Errors
    0                 fscsi0/hdisk18     OPEN   NORMAL         25
0
    1                 fscsi0/hdisk20     OPEN   NORMAL         31
0
    2                 fscsi1/hdisk22     OPEN   NORMAL         29
0
    3                 fscsi1/hdisk24     OPEN   NORMAL         26
0

DEV#:   1  DEVICE NAME: vpath4  TYPE: 2105F20   SERIAL: 60219516
================================================================
Path#              Adapter/Hard Disk    State     Mode     Select
Errors
    0                 fscsi0/hdisk19     OPEN   NORMAL      13465
0
    1                 fscsi0/hdisk21     OPEN   NORMAL      13636
0
    2                 fscsi1/hdisk23     OPEN   NORMAL      13567
0
    3                 fscsi1/hdisk25     OPEN   NORMAL      13727
0
++++++++++++++++++++++

Note the **** lines.
I have two entries for "hdisk2" and two for "hdisk3".  Smitty won't let me
remove them (not enough information to uniquely identify the device) and
similar error messages for "change/show charactaristics".

How can I remove "hdisk2" and "hdisk3"?  The 10-78 and 10-68 devices are
the fibre cards.

Thanks in advance

Todd Lundstedt
Technical Specialist
Via Christi Information Management Services
ofc.   (316) 261-8385
fax.   (316) 660-0036
Todd_Lundstedt AT via-christi DOT org

<Prev in Thread] Current Thread [Next in Thread>