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EMC AX4-5 Disk I/O Error
Hi All,
Please if you could help .
we have EMC AX4-5 Storage connected to Server
On April 10th at 18:14 the storage
SPA crashed and rebooted. All LUN connected to SPA as a primary path switched
to SPB.
At 18:21 the SPA reboot was finished. While
LUNs path switch back from SPB to SPA the disks alerted IO error.
Do you have any fix for this ?
Thank you.
Vipin VK
812 Posts
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June 11th, 2013 03:00
Are you facing this issue at the time of trespassing (Changing ownership) of the LUNs to SPA ?
Is this for some short duration or an extended period ?
Is this the same case with all the LUNs from SPA or some specific LUNs ?
juansalsado
4 Posts
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June 11th, 2013 05:00
Hi ,
Kindly find below answers :
Are you facing this issue at the time of trespassing (Changing ownership) of the LUNs to SPA ?
yes
Is this for some short duration or an extended period ?
couple of minutes
Is this the same case with all the LUNs from SPA or some specific LUNs ?
all the luns
Thank you.
kelleg
4.5K Posts
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June 11th, 2013 14:00
In order to determine what caused the SPA to reboot, EMC would need to the Diagnostic files to search the logs for the error codes. I recommend that you open a service request with EMC and attach to the request the diagnostic files for both SPA and SPB (spcollects). If there is a dump file (in the case of a panic) EMC will request that you also attach that to the case.
In general, there have been a number of fixes for the AX4 over the years and the latest release of flare code for the AX4 is 02.23.050.5.711. If you are not at this version I strongly recommend that you upgrade your array as soon as possible.
glen
zhouzengchao
2 Intern
2 Intern
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1.4K Posts
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June 12th, 2013 07:00
I/O error is common during LUN trespass, which mean it was not non-disruptive. The I/O error depends on the host software requirements on response time. OLTP-like i/o would got error during lun trespass typically. So, for this case, you should get help from EMC support to get the root cause for SPA reboot.