SAN - Solaris - Many Messages "FCP: Report Lun Has Changed" on FC HBA

Asset ID:	1-72-1556744.1
Update Date:	2016-07-29
Keywords:

Solution Type Problem Resolution Sure

Solution 1556744.1 : SAN - Solaris - Many Messages "FCP: Report Lun Has Changed" on FC HBA

Applies to:

Sun Fire V890 Server - Version All Versions and later
Solaris Operating System - Version 8 6/00 U1 and later
Qlogic FC HBA - Version All Versions and later
Emulex FC HBA - Version All Versions and later
Solaris Cluster - Version 3.1 to 3.1 [Release 3.1]
Information in this document applies to any platform.

Symptoms

Solaris 9 host server1 has one Oracle Emulex FC HBA connected to the SAN, accessing several Hitachi arrays.

After reboot, we start to see endless messages like this:

May 21 12:02:32 server1 scsi: [ID 243001 kern.info] /pci@9,600000/SUNW,emlxs@1/fp@0,0 (fcp3):
May 21 12:02:32 server1 FCP: Report Lun Has Changed
May 21 12:02:32 server1 scsi: [ID 243001 kern.info] /pci@9,600000/SUNW,emlxs@1/fp@0,0 (fcp3):
May 21 12:02:32 server1 FCP: Report Lun Has Changed
May 21 12:02:32 server1 scsi: [ID 243001 kern.info] /pci@9,600000/SUNW,emlxs@1/fp@0,0 (fcp3):
May 21 12:02:32 server1 FCP: Report Lun Has Changed
May 21 12:02:32 server1 scsi: [ID 243001 kern.info] /pci@9,600000/SUNW,emlxs@1/fp@0,0 (fcp3):
May 21 12:02:32 server1 FCP: Report Lun Has Changed

Changes

This has been seen on Solaris 10 after upgrading to 119130-21 or higher.

This has been seen on Solaris 8 and 9 after upgrading to SAN 4.4.11 patch levels.

Cause

Due to some events on the SAN or due to current configuration, it seems these messages

May 21 12:02:32 server1 fctl: [ID 517869 kern.warning] WARNING: 66=>fp(3)::PLOGI to 8cbf00 failed. state=a reason=3.
May 21 12:02:32 server1 fctl: [ID 517869 kern.warning] WARNING: 70=>fp(3)::PLOGI to a8b00 failed. state=a reason=3.

May 21 12:02:32 server1 fctl: [ID 517869 kern.warning] WARNING: 104=>fp(4)::PLOGI to 8dbf00 failed. state=a reason=3.
May 21 12:02:32 server1 fctl: [ID 517869 kern.warning] WARNING: 108=>fp(4)::PLOGI to b8a00 failed. state=a reason=3.

... trigger a software problem on fcp driver, endless errors like this every second, on each fcp instance associated to each HBA port:

Customer is hitting known <Bug 15379647> Endless FCP: Report Lun Has Changed messages after upgrade

Solution

This problem is addressed by the following patch levels:

Solaris 8 : With SAN 4.4.13 or above (fcp patch 111095-31 or above)

Solaris 9 : With SAN 4.4.13 or above (fcp patch 113040-23 or above)

Solaris 10 : Solaris 10 update4 or fcp patch 125184-03 (sparc) / 125185-03 (x86) or above

Solaris 11 is not affected, any Sol11 version contains the fix.

Please verify and apply the correspondent patch if not present.

References

<BUG:15379647> - SUNBT6526457-SOLARIS_11 ENDLESS FCP: REPORT LUN HAS CHANGED MESSAGES AFTER UPGRA

Attachments

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