Read and Write Operations to a Sun Storage 6000 or 2540 Array Error with ASC 0x8b / ASCQ 0x2

Asset ID:	1-72-1006536.1
Update Date:	2013-10-18
Keywords:

Solution Type Problem Resolution Sure

Solution 1006536.1 : Read and Write Operations to a Sun Storage 6000 or 2540 Array Error with ASC 0x8b / ASCQ 0x2

Applies to:

Sun Storage 6130 Array - Version Not Applicable and later
Sun Storage 6180 Array - Version Not Applicable and later
Sun Storage 2540-M2 Array - Version Not Applicable and later
Sun Storage 6540 Array - Version Not Applicable and later
Sun Storage 6580 Array - Version Not Applicable and later
All Platforms

Symptoms

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The system error log /var/adm/messages contains messages regarding read and write operations to a Sun Storage 6000 or 2540 Array similar to the following:

scsi: [ID 107833 kern.warning] WARNING:/pci@9,600000/SUNW,qlc@1/fp@0,0/ssd@w200700a0b819e184,0 (ssd7):
                   Error for Command:     Error Level: Retryable
scsi: [ID 107833 kern.notice] Requested Block: 0     Error Block: 0
scsi: [ID 107833 kern.notice] Vendor: SUN            Serial Number: xyz
scsi: [ID 107833 kern.notice] Sense Key: Unit Attention
scsi: [ID 107833 kern.notice] ASC: 0x8b (), ASCQ: 0x2, FRU: 0x0

Cause

The ASC/ASCQ code pair 0x8b/0x2 is a vendor unique code defined as "Quiescence Is In Progress or Has Been Achieved."

This error is generated if a read or write command to a volume is issued to an array controller that does not own the volume at the time of command execution, or if the volume is in the middle of a transition between controllers.

Solution

The error message is benign. A read or write command was sent to a controller when it was in a temporary quiescence state. The next retry of the command is usually successful. If the errors persist, one of the following issues may be responsible.

Physical link problem - faulty hardware in a host bus adapter, fibre channel cable, SFP or array controller.

Incorrect or out-of-date device driver and/or host bus adapter code.

Incorrect multipathing configuration. Please refer to the appropriate multipathing matrix for your array by conducting a search using the model of your array followed by the words "multipath software compatibility matrix." For example, search for "6140 multipath software compatibility matrix".

Incorrect settings for host initiators. Please refer to <Document 1003750.1> How to choose an Initiator Host Type for Sun Storage[TM] 6000 and Sun StorageTek[TM] 2500 Arrays.

Incorrect configuration of MPxIO on a Solaris host. Please refer to <Document 1333027.1> Verifying STMS (MPxIO) Health on StorageTek 2500, Sun Storage 2500-M2 and Sun Storage 6000 Series Arrays.

The error code ASC 0x8b / ASCQ 0x2 is not specific to Solaris and can be seen in other operating systems also.

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