Tape Drive - Primitive Sequence Errors on Fibre Channel Drives

Asset ID:	1-72-1013444.1
Update Date:	2012-07-27
Keywords:

Solution Type Problem Resolution Sure

Solution 1013444.1 : Tape Drive - Primitive Sequence Errors on Fibre Channel Drives

Applies to:

Sun StorageTek 9940B Tape Drive - Version Not Applicable and later
Sun StorageTek T10000A Tape Drive - Version Not Applicable and later
Sun StorageTek T10000B Tape Drive - Version Not Applicable and later
Sun StorageTek 9840A Tape Drive - Version Not Applicable and later
Sun StorageTek 9840B Tape Drive - Version Not Applicable and later
All Platforms
Checked for relevance on 27-July-2012.

Symptoms

Primitive sequence errors
Hangs SAN
Loss of signal
Loss of synchronization
Timeout
Link Down messages in /var/adm/messages on Sun Solaris
Encode errors on Brocade Switch error logs for the port in question

Changes

{CHANGE}

Cause

Primitive sequence timeout errors can be caused by loss of light, bad cable or defective tape drive.

Solution

Resolution
-If the problem is occurring on only one drive, check the cable connection or possibly a bad drive.

-If there are multiple drives check for loss of light problem somewhere within the SAN. This could be HBA, fibre cable or switch.

-Make sure 50 micron cables are being used rather then 62.5 micron cable as this can have an effect on this issue.

Gen-2, Fibre channel, Fibre cable, SAN, 9940, IBM LTO Ultrium, LTO Ultrium, Defective Fibre Channel cable. Using 62.5 micron cable rather then preferred 50 micron cable, Gen-3, 9840, SDLT 600, Certance LTO Ultrium HP LTO Ultrium, Seagate LTO Ultrium, T10000, Cable mis-match. Drives tray may contain and internal 50 micron cable to Tape Drive brick, LTO

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