Sense Key Illegal Request errors seen when booting with Sun Storage 2500-M2 Array

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Article ID: 100026891

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Description

Error Message

Feb 24 08:30:23 si-iptvbl0-2 kernel: [ 3371.551227] Buffer I/O error on device sdc, logical block 0
Feb 24 08:30:24 si-iptvbl0-2 kernel: [ 3372.083074] sd 1:0:0:1: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Feb 24 08:30:24 si-iptvbl0-2 kernel: [ 3372.083078] sd 1:0:0:1: [sdc] Sense Key : Illegal Request [current]

Cause

An Oracle/Sun bug is filed against this issue.  Please see  Bug ID:7014293 in Sun Storage 2500-M2 Arrays Hardware Release Notes:
http://docs.oracle.com/cd/E20734_01/html/E24025/index.html

There are NO tunable in DMP/VxVM to remove the messages seen.
Modifying "/etc/lvm/lvm.conf" file to filter out all the passive(secondary) paths will not work.
Creating the ".cache"  file where all the DMP nodes are shown as valid devices will also not work.  The “Illegal Request” messages will still be seen on the passive paths.
 

Resolution

Disabling the "smartd" monitoring from the storage can prevent the messages from appearing.  

The messages do not indicate any malfunctioning of the storage and can be safely ignored.   But the logging of the messages will make the boot process slow.

At this time, there is no RDAC support with Linux platforms.

 

Applies To

OS version: SUSE Linux Enterprise Server 11 (x86_64)
Storage Foundation version: 5.1SP1RP2.
Storage Array Type: STK 2530
 

Issue/Introduction

During system boot, "Sense Key Illegal Request errors" are seen from the OS system message file making the system boot up process slow as well as IO to the block device slow. Using RDAC, however, the problem is not seen.
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