Failed mpio path on AIX5.3


 
Thread Tools Search this Thread
Operating Systems AIX Failed mpio path on AIX5.3
# 8  
Old 11-19-2013
I'am not familar with IBM v7000 storage.

Please ask your storage Admin, whether all mappings for this MAC-adress/WWN and for hdisk10 (LUN ID 8) are present.

LUN ID (in hex):
lsattr -El hdisk10 | grep -i "lun_id"
# 9  
Old 11-19-2013
Mapping is done at host level (on v7000), if he is missing one WWN, that affect should be global and NOT to a particular LUN.

@Murali969, the failed path is from Storage, can you cross verify on all other hdisks the path is up? is it showing Failed on the below for other hdisks too?

5005076802408847

If that's the case, then it could be that they just zoned three and missed out on (50050XXX).

Ask the storage team to look in to Fabric again.

Can you paste the output of
fcstat fcs3 | grep -p "FC SCSI Traffic Statistics"

Also, send me the errpt -a for that failed path if it is logged.
# 10  
Old 11-19-2013
Code:
All other hdisks are fine

The fcstat info as below
FC SCSI Traffic Statistics
  Input Requests:   1182
  Output Requests:  276
  Control Requests: 2762594
  Input Bytes:  264308
  Output Bytes: 6624


The errpt output is as below

LABEL:          SC_DISK_PCM_ERR8
IDENTIFIER:     02A8BC99

Date/Time:       Fri Nov 15 23:55:06 2013
Sequence Number: 415724
Machine Id:      00F973B152C00
Node Id:         dr-asm-01
Class:           H
Type:            PERM
WPAR:            Global
Resource Name:   hdisk10
Resource Class:  disk
Resource Type:   mpioosdisk
Location:        U78AA.001.WZSHBCV-P1-C6-T2-W5005076802408847-L8000000000000

VPD:
        Manufacturer................IBM
        Machine Type and Model......2145
        ROS Level and ID............30303030
        Serial Number...............2076
        Device Specific.(Z0)........0000063268181002
        Device Specific.(Z1)........
        Device Specific.(Z2)........
        Device Specific.(Z3)........

Description
PATH HAS FAILED

Probable Causes
ADAPTER HARDWARE OR CABLE
DASD DEVICE

Failure Causes
UNDETERMINED

        Recommended Actions
        PERFORM PROBLEM DETERMINATION PROCEDURES
        CHECK PATH

Detail Data
PATH ID
           2
SENSE DATA
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0008


Last edited by murali969; 11-19-2013 at 01:23 PM..
# 11  
Old 11-19-2013
Hmmm,
So, we know it's not the problem with your fcs3, and looking at the output of your lsdev -Ccdisk, I am assuming you don't have MPIO pcmpath installed on your system.

With v7000 storage, IBM MPIO- SDDPCM is free.

Can you paste the output of
Code:
lsattr -El hdisk10 -a "algorithm hcheck_interval reserve_policy"
lsattr -El fscsi3 -a "dyntrk fc_err_recov"

Do this ONLY, if the disk is free:
Is the disk in use? lspv | grep hdisk10, if its not in use try to delete the disk and re-configure.
Code:
rmdev -Rdl hdisk10
cfgmgr -i hdisk10
lspath -l hdisk10 -s available -F"connection:parent:path_status:status"


Last edited by ibmtech; 11-19-2013 at 02:04 PM.. Reason: Added lspath
# 12  
Old 11-20-2013
Code:

Please find  the below outputs

# lsattr -El hdisk10 -a "algorithm hcheck_interval reserve_policy"

algorithm       fail_over   Algorithm             True
hcheck_interval 60          Health Check Interval True
reserve_policy  single_path Reserve Policy        True

bash-3.2# lsattr -El fscsi3 -a "dyntrk fc_err_recov"
dyntrk       yes       Dynamic Tracking of FC Devices        True
fc_err_recov fast_fail FC Fabric Event Error RECOVERY Policy True

# 13  
Old 11-20-2013
Code:
rmdev -Rdl hdisk10
cfgmgr -i hdisk10
lspath -l hdisk10 -s available -F"connection:parent:path_status:status"

Have you tried this?
This User Gave Thanks to ibmtech For This Post:
# 14  
Old 12-04-2013
Code:
Thanks a lot on above, iam in the process of doing..

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

issue AIX MPIO path closed

Hello, I have encountered the issue on my AIX 6.1. As you can see below, the hdisk1 & hdisk8 are not recognized by the system / > lspv hdisk0 00fa6d1288c820aa rootvg active hdisk1 00fa6d1288c8213c None hdisk2 ... (9 Replies)
Discussion started by: Phat
9 Replies

2. AIX

DISK and MPIO

Hello, I have some concerns over the disk management of my AIX system. For example server1 / > lspv hdisk0 00fa6d1288c820aa rootvg active hdisk1 00fa6d1288c8213c vg_2 active hdisk2 00c1cc14d6de272b ... (6 Replies)
Discussion started by: Phat
6 Replies

3. AIX

Need Help with SDD / SDDPCM / MPIO

This is getting very confusing for me, and appreciate if someone can help. Platform: Power VM ( Virtual I/O Server) ioslevel 2.1.3.10-FP23 # oslevel -s 6100-05-00-0000 Storage: IBM DS4300 Two HBAs - Dual Port Fibre Adapter Channels Each card has two ports , so a total of 4 ports going... (3 Replies)
Discussion started by: filosophizer
3 Replies

4. AIX

MPIO - list of supported arrays

Hello, we are planning to deploy some of our databases on AIX/LPAR based servers (we didn't bought it yet ...). IBM's engineers says that if we want to boot them from SAN the hardware array has to be compatible with MPIO but they don't want to deliver any document with list of arrays supported... (5 Replies)
Discussion started by: andy55
5 Replies

5. AIX

MPIO reliability

Hi, we have a vew boxes using MPIO and they are connected to some virtualization software managing some disk subsystems, offering volumes to the AIX boxes. Sometimes when a cable has been plugged out for a test or when a real problem occurs, using lspath to show the state of the paths shows... (8 Replies)
Discussion started by: zaxxon
8 Replies

6. AIX

MPIO Driver

On a particular LPAR, I was running AIX 5.3 TL 3. On Monday I did an update of the LPAR to 5.3 TL 9 SP2. The install was smooth, but then I ran into a problem. The MPIO driver does not work with LSI's StoreAge (SVM4). I did some looking, and looks like 5.3 TL3 = IBM.MPIO 5.3.0.30 5.3... (0 Replies)
Discussion started by: clking
0 Replies

7. AIX

How to upgrade AIX5.3TL6-07 to AIX5.3TL8-04?

Hello All, After creating lpp_source/spot from AIX 5.3TL6-07 DVD on the NIM(AIX6.1), I went online and download the fix pack for reaching TL8-04. (it was less than 200Mgegs total) then I did define a newer lpp_source530TL8-04 via a copy from the older lpp_source530TL6-07 (I diduse a command... (2 Replies)
Discussion started by: sangers
2 Replies

8. AIX

AIX native MPIO

Hi folks, does anybody have a link to a documentation how to implement native MPIO on AIX? We are using EMC PowerPath and Datacore SanSymphony/Cambex for this so far and I wasn't able to find a good description on that topic. All I know so far is that mkpath, chpath and lspath are used to... (3 Replies)
Discussion started by: zaxxon
3 Replies

9. Solaris

path 108528-29 failed

Hi All, The path requires me to go Single User mode. On single user mode, the patch still won't continue: dhcpagent supports a new keyword in /etc/default/dhcpagent. Please merge the existing /etc/default/dhcpagent with the patched version of /etc/default/dhcpagent shipped with this... (2 Replies)
Discussion started by: itik
2 Replies

10. UNIX for Advanced & Expert Users

AIX MPIO and EMC

We are looking at running MPIO for it's redundancy and load balancing benefits. Does anyone know what pieces of software or modules are needed on the VIO server to get load balancing to work. Remember we are using EMC's DMX3500 storage system. We no longer want to use Powerpath. :rolleyes: ... (2 Replies)
Discussion started by: vxg0wa3
2 Replies
Login or Register to Ask a Question