Access to Volumes on Sun Storage Arrays May Cause ASC=0x94 ASCQ=0x1 Errors

Asset ID:	1-72-1008161.1
Update Date:	2017-10-05
Keywords:

Solution Type Problem Resolution Sure

Solution 1008161.1 : Access to Volumes on Sun Storage Arrays May Cause ASC=0x94 ASCQ=0x1 Errors

Related Items


Sun Storage D240 (StorEdge) Disk Subsystem
 Sun Storage D280 Disk Subsystem
 Sun Storage Flexline 280 Array
 Sun Storage 2510 Array
 Sun Storage 2540 Array
 Sun Storage 2540-M2 Array
 Sun Storage 5310 NAS Gateway System
 Sun Storage 6780 Array
 Sun Storage 6180 Array
 Sun Storage 6130 Array
 Sun Storage Flexline 380 Array
 Sun Storage 2530 Array
 Sun Storage 2530-M2 Array
 Sun Storage 5310 NAS Appliance
 Sun Storage 5320 NAS Gateway
 Sun Storage 6540 Array
 Sun Storage 6580 Array
 Sun Storage Flexline 240 Array
 Sun Storage 5320 NAS Appliance
 Sun Storage 6140 Array

Related Categories


PLA-Support>Sun Systems>DISK>Arrays>SN-DK: 6130

PreviouslyPublishedAs
211215

Applies to:

Sun Storage 6780 Array - Version All Versions and later
Sun Storage 6180 Array - Version All Versions and later
Sun Storage 6540 Array - Version All Versions and later
Sun Storage 2530-M2 Array - Version Not Applicable and later
Sun Storage 2540-M2 Array - Version Not Applicable and later
All Platforms

Symptoms

When a volume on a Sun Storage Array is accessed by the host using the format command, the SCSI command may fail with the error:

Illegal request during read
ASC: 0x94 ASCQ: 0x1
Warning: error reading backup label.

The following messages would then appear on a Solaris host in /var/adm/messages:

Mar 23 09:47:31 TestHost1 scsi: WARNING: /pci@1d,700000/SUNW,qlc@2/fp@0,0/ssd@w2000000000000000,1 (ssd7):
Mar 23 09:47:31 TestHost1 Error for Command: read(10) Error Level: Informational
Mar 23 09:47:31 TestHost1 scsi: Requested Block: 0 Error Block: 0
Mar 23 09:47:31 TestHost1 scsi: Vendor: SUN
Mar 23 09:47:31 TestHost1 scsi: Sense Key: Illegal Request
Mar 23 09:47:31 TestHost1 scsi: ASC: 0x94 (<vendor unique code 0x94>), ASCQ: 0x1, FRU: 0x0

Similar messages would appear in other operating systems as well.

Cause

The request is illegal because the volume is not owned by the controller receiving the request.

Sense 05 = Illegal Request
ASC/ASCQ 94/01 = Invalid Request Due to Current Logical Unit Ownership.

These errors can occur when a LUN on the standby path is probed during boot, or when the format command is executed.

Solution

Please check your host multipathing solution, and your host type setting for your initiator/host port. For more information about the pairing of a specific multipath solution and host type, please review <Document 1003750.1> How to choose an Initiator Host Type for Sun Storage[TM] 6000 and Sun StorageTek[TM] 2500 Arrays.

This message is usually caused by the host type being set for explicit failover when the multipath solution supports implicit failover. For more information about the terms implicit and explicit, please review <Document 1003652.1> Sun StorEdge[TM] Traffic Manager: Configuring and Defining Symmetric and Asymmetric Disk Storage Arrays for Multipath Management.

Any host type can experience this event. The error denotes a specific SCSI code defined by the vendor, but can occur on any host attached to the array. Different host operating systems provide and interpret SCSI sense data in different fashions.

6130, 6140, 6540, 0x94, 5310, 5320
Previously Published As
85498
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