Sun Storage 3310 Array Connected with Ultra320 SCSI HBA: Fujitsu (Allegro) Drives Can Cause SCSI Bus Resets and Transport Errors

Asset ID:	1-72-1006888.1
Update Date:	2018-03-06
Keywords:

Solution Type Problem Resolution Sure

Solution 1006888.1 : Sun Storage 3310 Array Connected with Ultra320 SCSI HBA: Fujitsu (Allegro) Drives Can Cause SCSI Bus Resets and Transport Errors

Applies to:

Sun Storage 3310 Array - Version Not Applicable and later
All Platforms

Symptoms

Systems connected to a Sun Storage 3310 RAID Array or JBOD with Fujitsu drives via an Ultra320 SCSI HBA can experience the following problems:

External SCSI bus reset
Target x reducing sync transfer rate
Target x reverting to async mode

These messages could be followed by read/write errors such as:

Jan 16 04:04:21 larempdb scsi: [ID 107833 kern.warning] WARNING: /pci@1f,4000/scsi@4/sd@0,5 (sd76):
Jan 16 04:04:21 larempdb    Error for Command: write                   Error Level: Retryable
Jan 16 04:04:21 larempdb scsi: [ID 107833 kern.notice]    Requested Block: 153264                    Error Block: 153264

Jan 16 04:04:21 larempdb scsi: [ID 107833 kern.notice]    Vendor: SUN                               Serial Number: 1ACACDB1-05
Jan 16 04:04:21 larempdb scsi: [ID 107833 kern.notice]    Sense Key: Unit Attention
Jan 16 04:04:21 larempdb scsi: [ID 107833 kern.notice]    ASC: 0x29 (power on, reset, or bus reset occurred), ASCQ: 0x0, FRU: 0x0

Cause

The above messages could be a result of a speed negotiation issue between the Ultra320 SCSI HBA and the array.

They could also be associated with Sun bug 6195171: "Jasper2 320MB/sec does not function properly with Allegro-9 and Allegro-8". Allegro drives are Fujitsu drives, and all qualified Fujitsu drives for the 3310 are either Allegro-8 or Allegro-9 type drives.

Solution

First determine whether speed negotiation issues are involved by referring to <Document 1012309.1> Sun Storage 3310 SCSI Array: Resolving SCSI Bus Resets and Transport Errors When Using the Ultra320 Host Bus Adapter.

If the problem persists after working through the above document, Sun bug 6195171 may be the cause.

The following patches are available:

<Patch 115275-11>: SunOS 5.8 (SPARC)
<Patch 118558-39>: SunOS 5.9 (SPARC)
<Patch 118559-39>: SunOS 5.9 (x86)
<Patch 118833-36>: SunOS 5.10 (SPARC)
<Patch 118855-36>: SunOS 5.10 (x86)

If the none of the above resolves the problem, further investigation is required. Out-of-date disk firmware or hardware issues such as cable or HBA could contribute to this problem.

Do you still have questions? You can use My Oracle Support Communities. Communities put you in touch with industry professionals like yourself. They are monitored by Oracle support engineers, so you can expect reliable and correct answers. Ask questions and see what others are asking about in the Disk Storage 2000, 3000, 6000 RAID Arrays & JBODs Community.

Internal Comments
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This document is referenced by: 80089 which is referenced by 89047
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Project: Minnow Normalization

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