Sun Storage 6540 Array
 
Sun Storage 6140 Array
 
Sun Storage 5320 NAS Appliance
 

GCS>Sun Microsystems>Sun Alert>Criteria Category>Availability
 
GCS>Sun Microsystems>Sun Alert>Release Phase>Resolved
 

Sun StorageTek 5320, 6140 and 6540 arrays with Expansion Tray Firmware may experience I/O Module(IOM), reboots, hangs, and in some configurations loss of access to multiple drives across multiple trays. This may cause volume failure, which could result in a loss of access to data.

This issue can occur on the following platforms:

• Sun StorageTek 5320 and CSM2 trays without firmware 9884
• Sun StorageTek 6140 and CSM2 trays without firmware 9884
• Sun StorageTek 6540 and CSM2 trays without firmware 9884

Note 1: The described issue mostly occurs when configurations include seven or more expansion trays to a single controller unit, as well as large SATA drive configurations.

Note 2: This issue only affects arrays using CSM2 Expansion Trays with IOM Firmware 9865: X-Option: XTACSM2-IOM P/N: 375-3336.t

The firmware version can be viewed within Sun StorageTek Common Array Manager(CAM), by doing the following:

    Array Name Menu -> Troubleshooting -> FRUs -> IOM

Affected arrays will have "9865" listed for the "Revision".

The sscs(1M) command can also be used to determine the firmware version:

    % sscs list -d array_name fru

If the described issue occurs, symptoms can range from array event notification for drive failure, tray IOM failure, drive path redundancy lost, as well as volume failure.

No workaround is available at this time. Should you have the affected revision of IOM firmware loaded in your array, it is recommended that you contact Sun Services for help in addressing this issue.

This issue is addressed in the following releases:

• Sun StorageTek 5320 and CSM2 trays with firmware 9884 or later
• Sun StorageTek 6140 and CSM2 trays with firmware 9884 or later
• Sun StorageTek 6540 and CSM2 trays with firmware 9884 or later

The above firmware is bundled in the Common Array Manager 5.1 as well as SANtricity 09.19.G2.04. Common Array Manager 5.1 is available here:

http://www.sun.com/download/products.xml?id=45d3689d

For 5320 arrays, you must download and apply StorageTek 5320 NAS software update patch 119352-05 or later.

• Updated Contributing Factors and Relief/Workaround sections

• Updated Contributing Factors and Resolution sections

• State: Resolved
• Updated Contributing Factors and Resolution sections

• Updated Product field, Synopsis, and Impact

MEL entries are hard to come by, since the log will roll after an hour of incurring this bug. Some of the reported entries are:

     Channel         Fibre channel link errors - threshold exceeded

     Controller      AEN posted for recently logged event

     Channel         Fibre channel link errors continue

     Drive           Drive tray path redundancy lost

     Channel         Fibre channel link up/down

 

Customers that have experienced this have only had large SATA drive configurations coupled with 7 or more CSM2 trays. 6540 units have been the only ones reported, but Engenio/LSI has not eliminated any array that uses the CSM2 expansion IOM.

The upgrade is an online one and takes approximately 5 minutes per IOM. For example, an array with 7 expansion trays will take:

     5 minutes x 7 trays x 2 IOM's = 70 minutes

 

The firmware can be applied using either SANtricity or CAM.

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