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8031
Clarion Alert Event Number 720e
Alert:
Time Stamp 07/25/10 13:14:34 (GMT) Event Number 720e Severity Warning Host CX4_960_SPA Storage Array XXXXXXXXXX SP A Device N/A Description Initiator (xx:xx:xx:aa:xx:xx:xx:xx:xx:xx:xx:aa:xx:xx:xx:xx:) on Server (abc) registered with the storage system is now inactive. It does not have a working physical connection. See Navisphere Manager for details.
Above alert receiving when Server reboots.
Analyzed SP collects, SWITCH Logs and confirmed that no issues with Storage and Switch from EMC support.
This host has two HBA. Why getting problem for one initiator? We restarted this server so many times – we never receive the alert before July 25th . No changes done in SAN. Confused why this alert receiving now- why not earlier.
Please any one can help me to solve this issue.
muneer1
41 Posts
0
August 4th, 2010 22:00
Case number: SR 35904316 .
Host team clearly siad no issues with HBA. I can replace if i am sure the proeblem with HBA.
Nollaig1
137 Posts
0
August 5th, 2010 00:00
Hello Muneer,
Just curious, can you give me a little more background information?
This is not a new install, and you have rebooted the host before without error. How often is this host rebooted?
When did you first see the issue? Do you know when the host was last rebooted without triggering the error?
Are you aware of any SAN/Host/Storage changes between the last known 'good' reboot and a reboot where the delay is seen?
Thank you Muneer,
Nollaig
muneer1
41 Posts
0
August 5th, 2010 01:00
Dears,
I am new in this fourum . I am afarid Showing hostanme and HBA of one of our crtical server in this forum will raise security concern
i would like to close this discussion here.
Thanks for all your great help.
Best regards,
Munner.
aloski
38 Posts
1
August 5th, 2010 01:00
Hi muneer,
I don't think you have an HBA issue here, but I'm a bit confused.
The host report for BBHOIMG01 that you provided in the Service Request shows two hba's only:
50-01-43-80-02-B1-18-5C
50-01-43-80-02-B1-18-5E
and IP address 10.0.11.110
but the clarion connectivity status shows 4 initiators logged in against the above IP address:
50-01-43-80-02-B1-18-5C
50-01-43-80-02-B1-18-5E
50:01:10:A0:00:85:85:52
50:01:10:A0:00:85:85:50
From which phisycal host are the last two WWPN's coming from?
It seems you have two hosts called "SMS" using the same IP address!
One host has these hba's logged in:
50-01-43-80-02-B1-18-5C
50-01-43-80-02-B1-18-5E
The other has these logged in:
50:01:10:A0:00:85:85:52
50:01:10:A0:00:85:85:50
I'm wondering if you have a problem with the way things have been configured!
Cheers, Paolo.
muneer1
41 Posts
0
August 5th, 2010 01:00
Just curious, can you give me a little more background information?
..
This is not a new install, and you have rebooted the host before without error. How often is this host rebooted?
Yes we rebooted twice on June 2nd and June 3rd 2010 without any issues.
When did you first see the issue? Do you know when the host was last rebooted without triggering the error?
From July25th --- Three times – each time clarion triggered alert
Rebooted twice on June 2nd and June 3rd 2010 without any issues.
Before that we never had any issues.
.
Are you aware of any SAN/Host/Storage changes between the last known 'good' reboot and a reboot where the delay is seen?
yes only - one changes in Host side- patch update.
muneer1
41 Posts
0
August 5th, 2010 01:00
Dear Park, Is it good practise to uncheck the alert ?
kelleg
4.5K Posts
1
August 5th, 2010 09:00
Munner,
The last post raised an important point - the HBA numbers seems to indicate that there may be two hosts with the same registered hostname and the same IP address - (I will not use the numbers) logged into the array.
On the clariion there is a Host registered with four HBA WWN's assigned and logged in - this host was manaully registered on the array. The emcreport for the host that you said was this host has a different host name, but the two HBA's on this host are the same ones listed on a different host on the array. It appears that this may be your problem. Also, two of the HBAs (one from the host that you provided the emcreport for) and one from the other host are both logged in to SPB port 2.
You need to look very carefully at how these two hosts were manually registered on the array - this is probably not a supported configuration.
glen
SKT2
1.3K Posts
0
August 8th, 2010 11:00
what is the host OS? If its linux i guess the patching includes a kernel upgade after which the Power Path NEEDS resinstalled on the running/new kernel.
muneer1
41 Posts
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August 10th, 2010 03:00
Dears.
No other hosts registred in to this array .
i miised to tell one thing we renamed host in to another name very long abck . we have two HBA , two swithes .Multipathing 4 host inittiateres.
Clarion is identify host by wwn number not t by host name right?
Still i coud'nt get root cause of this problem.
Best regards,
Muneer.
kelleg
4.5K Posts
0
August 10th, 2010 14:00
You may have to do two things to fix this:
1. shut down both the old host and the new host - those that had the same name
2. once these are shut down, remove the host from the Storage Group, go into Connectivity Status, locate the four WWN's that you saw in the Storage Group, and de-register those four paths, then restart Management Server on both SPA and SPB - this should clean out any old registration data - as it uses the WWNs
3. Once this has been done, turn on one of the hosts - the new one first, wait for it to log in and register - check in Connectivity Status - make sure that there are only two paths listed for this host, then add it back into the correct Storage Group. Then repeat with the second host - the second host does have a different host name and IP address correct?
glen