Disk operation errors in AIX

Question

Can any one help me in fixing the disk operation errors in AIX hosts connected to VMAX, Support says everything is fine with HBA,cable, SFP and VMAX..But still we are facing this issue. Appreciate your help on this.

IDENTIFIER TIMESTAMP T C RESOURCE_NAME DESCRIPTION

DCB47997 1117180615 T H hdisk5 DISK OPERATION ERROR

DCB47997 1117180515 T H hdisk5 DISK OPERATION ERROR

DCB47997 1117180415 T H hdisk5 DISK OPERATION ERROR

DCB47997 1117180315 T H hdisk5 DISK OPERATION ERROR

DCB47997 1117180215 T H hdisk5 DISK OPERATION ERROR

DCB47997 1117180115 T H hdisk5 DISK OPERATION ERROR

DCB47997 1117180015 T H hdisk0 DISK OPERATION ERROR

PedalHarder · Answer

You need to get the verbose output of the errpt with the -a flag then decode the sense data to understand what the errors are about. There is a good how-to article here:

https://support.emc.com/kb/209240

storage_eng · Answer

I see that the issue is with just one device .. hdisk5 . Copy paste the first two Sense code lines from the errpt -a log so that we can find the issue

Ken.Whitehead · Answer

Hello Koppuru,

If you are still experiencing these error messages please open a service request with the software teams.

If PP is installed open it with the PP for AIX team.

Please make sure you are using the correct reserve policy for the environment.

https://support.emc.com/docu5126_Host_Connectivity_Guide_for_IBM_AIX.pdf?language=en_US

Symmetrix

Disk operation errors in AIX

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