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Asset ID: 1-73-1000790.1
Update Date:2010-08-30
Keywords:

Solution Type  FAB (standard) Sure

Solution  1000790.1 :   The Ethernet port on the StorageTek 25x0/61x0/6540 controllers may not work properly while attached to an Ethernet Switch port with auto-negotiation disabled.  


Related Items
  • Sun Storage 6540 Array
  •  
  • Sun Storage 2530 Array
  •  
  • Sun Storage 2540 Array
  •  
  • Sun Storage 6130 Array
  •  
  • Sun Storage 6140 Array
  •  
Related Categories
  • GCS>Sun Microsystems>Sun FAB>Standard>Reactive
  •  

PreviouslyPublishedAs
201067


Bug Id
<SUNBUG: 6538927>

Product
Sun StorageTek 2530 Array
Sun StorageTek 6130 Array
Sun StorageTek 6140 Array
Sun StorageTek 2540 Array
Sun StorageTek 6540 Array

Date of Resolved Release
07-May2007

Ethernet port on controllers may not work properly (see details below).

Impact

The Ethernet port on the controllers for the above listed products and firmware may not work properly while attached to an Ethernet Switch port with auto-negotiation disabled.

Contributing Factors

Ethernet switch port with auto-negotiation disabled on the following platforms:

  • Sun StorEdge 6130 with firmware 06.xx
  • Sun StorageTek 6140 with firmware 06.xx
  • Sun StorageTek 6540 with firmware 06.xx
  • Sun StorageTek 2530 with firmware 06.xx
  • Sun StorageTek 2540 with firmware 06.xx

Symptoms

Connecting the controller ethernet port to an Ethernet Switch port with auto-negotiation disabled may lead the management application CAM (Common Array Manager) to lose the out-of-band connection with the controller.

A similar alarm as the following one could be reported in CAM:

   Site       : <site name> 
Agent : <agent name>
Severity : Major
Category : 1540
Device Id : <device name>
Topic : OutOfBand
Event Type : CommunicationLostEvent
Event Code : 68.12.31
Event Date : <event date>

   Description:
   Lost oob communication with 1540 <device name>

Probable Cause:
This problem can be caused by a very slow network
or because the ethernet connection to this 6140 was lost.
This can also be caused by incorrect DHCP settings.
This problem can also be caused by loss of AC Power.

Recommended Action:
1. Check Ethernet Network Health to array
Ethernet Cables
Hubs, Routers, Switches
LED Link status of connections.
2. Check the status of DHCP server (if using for Ethernet configuration).
3. Check AC power to array
Power Cables
Power Outlets
Circuit Breakers
Power to building

In addition to the above, CAM may report the array in a status degraded.
Root Cause

The above listed arrays, with 06.xx firmware, do not support the Ethernet Switch port with auto-negotiation disabled.


Workaround
1. The field should check the auto-negotiation mode on the Ethernet Switch port
connected to the controller.

2. If the auto-negotiation mode is disabled, it has to be turned to enabled.

3. If CAM already lost the out-of-band communication to both array controllers, the array will need to go through a power cycle.

4. If CAM lost the out-of-band communication to only one of the array controllers, the field will be able to reset the affected controller using the GUI for CAM: a. Log into the Java Web Console. b. Click on "Sun StorageTek(TM) Common Array Manager". c. Expand the tree on the left window for the affected array. d. Go to Physical Devices -> Controllers. e. Click on "Reset Controller" for the affected controller (ie: A or B) that lost the out-of-band communication with CAM.

Resolution:

The firmware 07.xx supports the modification of the array ethernet speed and/or duplex by using the array management software.  Nevertheless, the recommendation is to use auto-negotiation if at all possible.



For information about FAB documents, its release processes, implementation strategies and billing information, go to the following URL:

For Sun Authorized Service Providers go to:

In addition to the above you may email:


Modification History
Changes made since publication.

01-Sep-2009
  • Added affected firmware of 06.xx to Impact, Contributing Factors, Root Cause and Resolution sections.

Previously Published As
102906
Internal Contributor/submitter
Nicolas.Wipfli@Sun.COM

Internal Eng Responsible Engineer
Nicolas.Wipfli@Sun.COM Responsible Manager: Lorraine.Dilliway@Sun.COM

Internal Services Knowledge Engineer
Joe.Davis@Sun.COM

Internal Eng Business Unit Group
NWS (Storage)

Internal Kasp FAB Legacy ID
102906

Internal Sun Alert & FAB Admin Info
02-May-2007: completed draft and sent to Extended Review.
03-May-2007: added affected products to Synopsis based on Ext Rvw feedback.
07-May-2007: all Ext Rvw feedback resolved - sending to Publish.


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