Re: Fibre Channel Array Troubles.

Have you checked the settings of the fibre channel adapters ?

lsattr -El fcs<x>

Maybe they don't allow to see any LUN's ?

This is normally only a problem with the qlogic cards in intel maschines
but if you are direct connected and have a link, at least you could
check that.

Stefan Gocke

Gocke IT Solutions
- IBM Certified Advanced Technical Expert - System p5 2006
- IBM Certified Deployment Professional - IBM TSM V5.2+IBM TSM V5.3
-----Original Message-----
Date: Fri, 18 Aug 2006 02:09:54 +0200
Subject: Re: Fibre Channel Array Troubles.
From: Brian Wheeler
To: aix-l@xxxxxxxxxxxxx

On Thu, 2006-08-17 at 19:01 -0400, Jeff Barratt-McCartney wrote:
if you have dacNONE in your fget_config -Av output. you have a
problem. my guess is that the hbas are zoned or cabled incorrectly to
the controllers on the fastt.

removing the devices will not solve this problem

The controllers in the array (a fastt 200) are directly connected to the
two hbas and I ran diagnostics today (complete with loopback) and it
passed ok. The cables run straight from the HBAs to the array, and both
of the HBAs have the yellow-blinky-light, which indicates a good link.
The controllers in the array also show the link is ok.

So...it may not be a hardware problem. Since I've not set up this kind
of array before, maybe I'm missing something pretty obvious. The
SMclient tool shows that both of the controllers are available and OK.
The only odd thing was that I had to manage them out-of-band, which
isn't a big deal, but I remember doing it in-band on a similar setup on
a linux box.

Is there a way to force a scan of the HBA and figure out what's attached
to it? Are there settings I should have been making when I plopped the
new card in there?

Thanks!
Brian



-----Original Message-----
From: IBM AIX Discussion List on behalf of Hans-Dieter Kutz
Sent: Thu 8/17/2006 9:16 AM
To: aix-l@xxxxxxxxxxxxx
Subject: Re: Fibre Channel Array Troubles.

On Thu, Aug 17, 2006 at 08:18:14AM -0400, Brian Wheeler wrote:
bash-2.04# lsdev -Cc adapter
ent0 Available 1L-08 10/100 Mbps Ethernet PCI Adapter II
(1410ff01)
ent1 Available 1n-08 10/100/1000 Base-TX PCI-X Adapter
(14106902)
ent2 Available 14-08 10/100 Mbps Ethernet PCI Adapter II
(1410ff01)
fcs0 Available 1H-08 FC Adapter
fcs1 Available 1D-08 FC Adapter
fda0 Available 01-D1 Standard I/O Diskette Adapter
ide0 Available 1G-19 ATA/IDE Controller Device
ppa0 Available 01-R1 CHRP IEEE1284 (ECP) Parallel Port Adapter
sa0 Available 01-S1 Standard I/O Serial Port
sa1 Available 01-S2 Standard I/O Serial Port
sa2 Available 01-S3 Standard I/O Serial Port
scsi0 Available 1S-08 Wide/Ultra-3 SCSI I/O Controller
scsi1 Available 1S-09 Wide/Ultra-3 SCSI I/O Controller
scsi2 Available 1c-08 Wide/Fast-20 SCSI I/O Controller
sioka0 Available 01-K1-00 Keyboard Adapter
siokma0 Available 01-K1 Keyboard/Mouse Adapter
sioma0 Available 01-K1-01 Mouse Adapter
bash-2.04# lsdev -C | grep 1H-08
dac0 Available 1H-08-01 3542 (200) Disk Array
Controller
fcnet0 Defined 1H-08-02 Fibre Channel Network Protocol
Device
fcs0 Available 1H-08 FC Adapter
fscsi0 Available 1H-08-01 FC SCSI I/O Controller Protocol
Device
bash-2.04# lsdev -C | grep 1D-08
dac1 Available 1D-08-01 3542 (200) Disk Array
Controller
fcnet1 Defined 1D-08-02 Fibre Channel Network Protocol
Device
fcs1 Available 1D-08 FC Adapter
fscsi1 Available 1D-08-01 FC SCSI I/O Controller Protocol
Device
hdisk4 Available 1D-08-01 3542 (200) Disk Array Device
bash-2.04#

It looks normal (to me) but obviously something is up...
That looks OK for me too.
You have 2 dac's, 2 fcnet, 2 fscsi an of cource 2 fcs's.
Hmm,
once we had a problem, when removing complete FASTT-Config from a
machine.
Do once more:
- umount FS
- varyoffvg VG
- exportvg VG
- rmdev -dl hdisk4
- rmdev -dl dar0
- rmdev -dl fscsi0
- rmdev -dl fcnet
- do the same for second devices (dac1, etc.)
In fact, throw out all - execpt of fcs0/fcs1, then do
- cfgmgr
- fget_config -Av (Look, if the created hdisk4 is managed by 1
dar-device and is
having 2 dacs)
- importvg -y VG hdisk4
- mount FS
Cheers,
ku

--
C-3PO:
We're doomed!




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