Re: vpath vs hdisk question
From: Andrew Townsend (Andrew.Townsend_at_BISYS.COM)
Date: 12/09/04
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Date: Thu, 9 Dec 2004 08:55:40 -0500 To: aix-l@Princeton.EDU
We do not have an /etc/vpexclude file on this node or the other node with
the DEAD path.
There is no man pages for datapath query device, or lsvpcfg etc. Are
commands like these documented anywhere? I googled them and looked in IBM
Redbooks website but didn't find much.
Thanks for your reply Joseph.
JOSEPH KREMBLAS
<JKREMBLAS@REDHEAR To: aix-l@Princeton.EDU
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Sent by: IBM AIX Subject: Re: vpath vs hdisk question
Discussion List
<aix-l@Princeton.E
DU>
12/08/2004 07:05
PM
Please respond to
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Hi, I've ran into this problem before and I think that the problem was
resolved by removing the /etc/vpexclude file. Check to see if you have
a /etc/vpexclude file. If so, post the contents and rename the file and
re-run your DPO and cfgmgr procedures. If there are any entries in this
file that match your DEAD VPATHs then you should remove the entries or
rename the file or delete the file and re-run your procedures again.
--joseph
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Andrew Townsend
Sent: Wednesday, December 08, 2004 1:02 PM
To: aix-l@Princeton.EDU
Subject: Re: vpath vs hdisk question
Hi Kevin, Thanks for the reply. I actually did remove all of those
devices and then re-add them but got the same result. I spoke to our SAN
swtich admin, who is very frustrated with me by now and he said that
this node is in the same exact zone as another node.
Here is the output from the node with the issues. Below is the output
from the node that is in production. I just realized that on the
production node there are paths that are DEAD. If these paths are dead,
then I'm thinking that this is why cfgmgr can't define path there.
hmmm....
New Node:
-----------------
[root] / >>datapath query adapter
Active Adapters :2
Adpt# Adapter Name State Mode Select Errors Paths
Active
0 fscsi0 NORMAL ACTIVE 0 0 4
0
1 fscsi1 NORMAL ACTIVE 0 0 2
0
[root] / >>lsvp -d
checking device 0
checking device 1
BAY-1(B1) BAY-2(B2) BAY-3(B3)
BAY-4(B4)
H1 H2 H3 H4 H1 H2 H3 H4 H1 H2 H3 H4
H1 H2 H3 H4
A B A B A B A B A B A B A B A B A B A B A B A B
A
B A B A B A B
0 O - - - - - - - O - - - - - - - O - - - - - - -
-
- - - - - - -
1 O - - - - - - - O - - - - - - - O - - - - - - -
-
- - - - - - -
Y = online/open
O = online/closed
N = offline
X = not-available
- = path not configured
? = path information not available
PD = path down
[root] / >>lsvp -a
Hostname VG vpath hdisk Location LUN SN S
Connection Size LSS Vol Rank
-------- -- ----- ----- -------- ------ -
---------- ---- --- --- ----
uxsybrpt None vpath0 hdisk2 11-08-01 20124055 Y
R1-B3-H1-ZA 831.8 12 1 1201
uxsybrpt None vpath0 hdisk4 11-08-01 20124055 Y
R1-B1-H1-ZA 831.8 12 1 1201
uxsybrpt None vpath0 hdisk6 14-08-01 20124055 Y
R1-B2-H1-ZA 831.8 12 1 1201
uxsybrpt None vpath1 hdisk3 11-08-01 30124055 Y
R1-B3-H1-ZA 831.8 13 1 1301
uxsybrpt None vpath1 hdisk5 11-08-01 30124055 Y
R1-B1-H1-ZA 831.8 13 1 1301
uxsybrpt None vpath1 hdisk7 14-08-01 30124055 Y
R1-B2-H1-ZA 831.8 13 1 1301
[root ] / >>lsvpcfg
vpath0 (Avail ) 20124055 = hdisk2 (Avail ) hdisk4 (Avail ) hdisk6 (Avail
) vpath1 (Avail ) 30124055 = hdisk3 (Avail ) hdisk5 (Avail ) hdisk7
(Avail )
Node currently in production:
---------------------------------------------
[root @ uxsybqa] / >>datapath query adapter
Active Adapters :2
Adpt# Adapter Name State Mode Select Errors Paths
Active
0 fscsi0 NORMAL ACTIVE 625145962 0 6
6
1 fscsi2 DEGRAD ACTIVE 621473454 0 6
3
[root @ uxsybqa] / >>datapath query device
Total Devices : 3
DEV#: 0 DEVICE NAME: vpath0 TYPE: 2105800 POLICY:
Optimized
SERIAL: 00324055
========================================================================
==
Path# Adapter/Hard Disk State Mode Select
Errors
0 fscsi0/hdisk3 OPEN NORMAL 669580
0
1 fscsi0/hdisk6 OPEN NORMAL 669835
0
2 fscsi2/hdisk9 DEAD NORMAL 619043
0
3 fscsi2/hdisk12 OPEN NORMAL 689295
0
DEV#: 1 DEVICE NAME: vpath1 TYPE: 2105800 POLICY:
Optimized
SERIAL: 20024055
========================================================================
==
Path# Adapter/Hard Disk State Mode Select
Errors
0 fscsi0/hdisk4 OPEN NORMAL 158521992
0
1 fscsi0/hdisk7 OPEN NORMAL 158517718
0
2 fscsi2/hdisk10 DEAD NORMAL 147634219
0
3 fscsi2/hdisk13 OPEN NORMAL 166880437
0
DEV#: 2 DEVICE NAME: vpath2 TYPE: 2105800 POLICY:
Optimized
SERIAL: 30024055
========================================================================
==
Path# Adapter/Hard Disk State Mode Select
Errors
0 fscsi0/hdisk5 OPEN NORMAL 153396629
0
1 fscsi0/hdisk8 OPEN NORMAL 153372714
0
2 fscsi2/hdisk11 DEAD NORMAL 146433361
0
3 fscsi2/hdisk14 OPEN NORMAL 159219496
0
[root @ uxsybqa] / >>lsvpcfg
vpath0 (Avail pv qavg) 00324055 = hdisk3 (Avail ) hdisk6 (Avail ) hdisk9
(Avail ) hdisk12 (Avail ) vpath1 (Avail pv qavg) 20024055 = hdisk4
(Avail ) hdisk7 (Avail ) hdisk10 (Avail ) hdisk13 (Avail ) vpath2 (Avail
pv qavg) 30024055 = hdisk5 (Avail ) hdisk8 (Avail ) hdisk11 (Avail )
hdisk14 (Avail )
Adams Kevin J
<kevin.adams@PHS. To:
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hdisk question
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12/08/2004 02:33
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Try running cfgmgr again. If that does not work, you might try deleting
the vpath/hdisk/fcs and then cfgmgr.
Also, have you checked the LUN assignments via the ESS specialist? Try
running an lsvp -d to see ESS HBA assignments.
I would at least try this before other things.
Kevin Adams
PacifiCare Behavioral Health
3120 Lake Center Drive
Mail Stop LC01-394
Santa Ana, CA 92704
Email: kevin.adams@phs.com
Work: 714-445-0343
Fax: 714-445-0475
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Lamar Saxon
Sent: Wednesday, December 08, 2004 10:59 AM
To: aix-l@Princeton.EDU
Subject: Re: [aix-l] vpath vs hdisk question
Sounds like a fabric configuration issue since we eliminate the FC
adapter ( you can see 2 paths there ) and the storage device/switches
since FCS0 can see 4 paths. Looks like they may not have given the FCS1
all 4 paths.
Lamar
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Andrew Townsend
Sent: Wednesday, December 08, 2004 10:58 AM
To: aix-l@Princeton.EDU
Subject: Re: vpath vs hdisk question
Lamar, thank you for your response.
Here is the output:
[root] / >>datapath query device
Total Devices : 2
DEV#: 0 DEVICE NAME: vpath0 TYPE: 2105800 POLICY:
Optimized
SERIAL: 20124055
========================================================================
==
Path# Adapter/Hard Disk State Mode Select
Errors
0 fscsi0/hdisk2 CLOSE NORMAL 0
0
1 fscsi0/hdisk4 CLOSE NORMAL 0
0
2 fscsi1/hdisk6 CLOSE NORMAL 0
0
DEV#: 1 DEVICE NAME: vpath1 TYPE: 2105800 POLICY:
Optimized
SERIAL: 30124055
========================================================================
==
Path# Adapter/Hard Disk State Mode Select
Errors
0 fscsi0/hdisk3 CLOSE NORMAL 0
0
1 fscsi0/hdisk5 CLOSE NORMAL 0
0
2 fscsi1/hdisk7 CLOSE NORMAL 0
0
I haven't set up any VGs using these disks yet. I've explained the
situation to our SAN Switch admin to ask him to double check the
configuration. Like you said, it seems like I only have two paths to
fcs1. Perhaps the mapping on the switch.....
Lamar Saxon
<Lamar.Saxon@AMERI To:
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hdisk question
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12/08/2004 11:43
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What is the output of:
datapath query device
Looks like fcs1 only has 2 paths to the disk.
Lamar
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Andrew Townsend
Sent: Wednesday, December 08, 2004 8:56 AM
To: aix-l@Princeton.EDU
Subject: vpath vs hdisk question
Hello everyone,
Quick question about Shark storage. I'm connecting an AIX5.1 ML3 box to
a shark. Everything seems normal except when I do an lsdev -Cc disk, I
see Two Vpaths (which I expect) but I see four hdisks for fcs0 and only
two hdisks for fcs1.
This isn't normal is it?
lsdev -Cc disk
hdisk0 Available 40-60-00-4,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 40-60-00-8,0 16 Bit LVD SCSI Disk Drive
vpath0 Available Data Path Optimizer Pseudo Device Driver
vpath1 Available Data Path Optimizer Pseudo Device Driver
hdisk2 Available 11-08-01 IBM FC 2105800
hdisk3 Available 11-08-01 IBM FC 2105800
hdisk4 Available 11-08-01 IBM FC 2105800
hdisk5 Available 11-08-01 IBM FC 2105800
hdisk6 Available 14-08-01 IBM FC 2105800
hdisk7 Available 14-08-01 IBM FC 2105800
lsdev -Cc adapter | grep fcs
fcs0 Available 11-08 FC Adapter
fcs1 Available 14-08 FC Adapter
Filesets that I am running:
devices.sdd.51.rte 1.5.0.0
devices.common.IBM.fc.rte 5.1.0.51
devices.fcp.disk.array.rte 5.1.0.61
devices.fcp.disk.rte 5.1.0.58
devices.fcp.tape.rte 5.1.0.52
I don't know if it makes a difference but there are two luns mapped that
are 840 Gb each. Each fibre-channel adapter is configured to use four
ports on the shark.
Thank you all in advance.
Drew
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