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Asset ID: 1-77-1000338.1
Update Date:2011-02-25
Keywords:

Solution Type  Sun Alert Sure

Solution  1000338.1 :   LAN Congestion may Result in Dual Controller Reboot on a Sun StorEdge 6130 Array  


Related Items
  • Sun Storage 6130 Array
  •  
Related Categories
  • GCS>Sun Microsystems>Sun Alert>Criteria Category>Availability
  •  
  • GCS>Sun Microsystems>Sun Alert>Release Phase>Resolved
  •  

PreviouslyPublishedAs
200458


Product
Sun StorageTek 6130 Array

Date of Resolved Release
13-SEP-2006

Impact

Both controllers in a Sun StorEdge 6130 array have an ethernet network port connected to a LAN for management of the array. If there is a very high volume of traffic on this LAN then this could result in both controllers rebooting. Examples of possible triggers for a high volume of LAN traffic are a "Denial of Service" attack, or a network misconfiguration causing a "routing loop".

The reboot of both array controllers simultaneously will result in all data on the array going offline, and all attached data hosts losing access to that data.


Contributing Factors

This issue can occur on the following platform:

  • Sun StorEdge 6130 Array with controller firmware 06.12.10.11 (as delivered in patch 117856-19) or earlier and without controller firmware 06.12.27.10

Symptoms

If the described issue occurs, the array's log file (Major Event Log) will show a controller reboot at the same time on both the "A" and "B" controller:

    Date/Time: Tue Jul 25 13:36:09 BST 2006
    Sequence number: 5914
    Event type: 2606
    Event category: Notification
    Priority: Informational
    Description: Start-of-day routine begun
    Event specific codes: 0/0/0
    Component type: Controller
    Component location: Controller in slot B
    Logged by: Controller in slot B
    Raw data:
    .....
    Date/Time: Tue Jul 25 13:36:13 BST 2006
    Sequence number: 5926
    Event type: 2606
    Event category: Notification
    Priority: Informational
    Description: Start-of-day routine begun
    Event specific codes: 0/0/0
    Component type: Controller
    Component location: Controller in slot A
    Logged by: Controller in slot A
    Raw data:
    .....

Workaround

There is no workaround. Please see the "Resolution" section below.


Resolution

This issue is addressed in the following release:

  • Sun StorEdge 6130 Array with firmware 06.12.27.10 (or later)

Note: Controller firmware release 06.12.27.10 is supplied with Sun StorageTek Array Host Software (CAM) 5.0 available for download at:



Previously Published As
102601
Internal Comments


This is Engenio CR 98081.



The bug is that the controllers spend too much time handling the excessive network traffic and this results in Watchdog Timeouts on both controllers.



The fix in firmware 06.12.27.10 involves recognizing a state of "receive flooding" and not allowing this state to consume too much controller resources.


Internal Contributor/submitter
matt.ascroft@sun.com

Internal Eng Business Unit Group
NWS (Network Storage)

Internal Eng Responsible Engineer
gary.gaston@Sun.COM

Internal Services Knowledge Engineer
jeff.folla@sun.com

Internal Escalation ID
1-18575298

Internal Sun Alert Kasp Legacy ID
102601

Internal Sun Alert & FAB Admin Info
Critical Category: Availability ==> HA-Failure
Significant Change Date: 2006-09-13
Avoidance: Upgrade
Responsible Manager: larry.robinson@sun.com
Original Admin Info: [WF 13-Sep-2006, Jeff Folla: Sent for release.]

[WF 11-Sep-2006, Jeff Folla: Waiting for bus group approval.]

[WF 09-Sep-2006, Jeff Folla: Sent for review.]

[WF 31-Aug-2006, Jeff Folla: Sent e-mail to the submitter asking him if there is a Sun BugID that is tracking this issue.]

Product_uuid
8252cb91-d771-11d8-ab52-080020a9ed93|Sun StorageTek 6130 Array

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