Asset ID:	1-77-1001419.1
Update Date:	2011-03-01
Keywords:

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Solution Type  Sun Alert Sure

Solution  1001419.1 :   Sun StorEdge 3510 in Redundant Controller Configuration May Experience Higher Rate of Controller Failover Under Heavy I/O Load  


PreviouslyPublishedAs
201918

Product
Sun StorageTek 3510 FC Array

Bug Id
<SUNBUG: 4862475>

Date of Workaround Release
08-JUL-2003

Date of Resolved Release
29-JUL-2003

Impact

The Sun StorEdge 3510 Fiber-Channel (FC) Array without array controller firmware version 3.27N or later in a "redundant controller" configuration may experience a higher rate of controller failovers. This may render the array temporarily unavailable.

Contributing Factors

This issue can occur on the following platforms:

SPARC Platform

• Sun StorEdge 3510 FC Array without array controller firmware version 3.27N

Note: Firmware 3.27N is available with patch 113723-04 or later.

This issue is prevalent when "cache mode" is set for Random Optimization, however, Sequential Optimization is also subject to an identical condition. To determine the "cache mode" from the Sun StorEdge 3510 main menu, perform the following steps:

1. Select "view and edit Configuration parameters"
2. Select "Caching Parameters"
3. See if "Optimization for Random I/O" is selected

Or, from the Sun StorEdge Configuration Service Command Line Interface (sccli(1M)), the following would be the result of running the "cache-policy" command:

    # /opt/SUNWsade/sbin/sccli cache-policy
optimization: random

Symptoms

The controller failure may occur with large block sequential writes on RAID-0 and RAID-1 devices with large capacity LDEVs (Logical Devices), i.e. those containing 10 or more disk drives.

Should the described issue occur, messages similar to the following are logged to the "/var/adm/messages" file:

    modo SUNWscsdMonitor[19670]: [ID 254907 daemon.error] [SUNWscsd 0x10B1D03:
Critical] <rctrl5040> Controller
Event, Redundant Controller Failure Detected
Likely controller error. If error persists, replace defective controller.

Or, from the Sun StorEdge 3510 "Main Menu", messages similar to the following alert may be displayed:

    [0111] Controller ALERT: Redundant Controller Failure Detected

Or, by running the sccli(1M) command "show events", the following message will be displayed:

    # /opt/SUNWsade/sbin/sccli show events
[0111]#6:StorEdge Array SN#3341163 Controller ALERT:redundant controller failure detected

Or, the GUI will display the error code "010b1d03" (redundant controller failed).

Workaround

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

Resolution

SPARC Platform

• Sun StorEdge 3510 FC Array with array controller firmware version 3.27N (delivered with patch 113723-04 or later)

Modification History
Date: 29-JUL-2003

• State: Resolved
• Updated Synopsis
• Updated Contributing Factors
• Updated Resolution

References

<SUNPATCH: 113723-04>

Previously Published As
101273
Internal Comments

Internal Contributor/submitter
[email protected]

Internal Eng Business Unit Group
NWS (Network Storage)

Internal Eng Responsible Engineer
[email protected], [email protected], [email protected]

Internal Services Knowledge Engineer
[email protected]

Internal Escalation ID
546192, 546359, 546551

Internal Resolution Patches
113723-04

Internal Sun Alert Kasp Legacy ID
101273, 55500 (Sun Alert)

Internal Sun Alert & FAB Admin Info
Critical Category: Availability ==> Pervasive
Significant Change Date: 2003-07-08, 2003-07-29
Avoidance: Patch
Responsible Manager: [email protected]
Original Admin Info: This document has been imported from KMS Creator and may need adjustment before re-publishing.

This imported document has been reviewed/adjusted by:
Review Name:
Review Date:

Original KMS Creator attributes below:

--- PLEASE DO NOT MAKE ANY CHANGES BELOW THIS LINE! ---

Sun Alert ID: 55500
Synopsis: Sun StorEdge 3510 in Redundant Controller Configuration May Experience Higher Rate of Controller Failover Under Heavy I/O Load
Category: Availability
Product: Sun StorEdge 3510 FC Array
BugIDs: 4862475
Avoidance: Patch
State: Resolved
Date Released: 08-Jul-2003, 29-Jul-2003
Date Closed: 29-Jul-2003
Date Modified: 29-Jul-2003
Escalation IDs: 546192, 546359, 546551
Pending Patches:
Resolution Patches: 113723-04
FIN:
FCO:
Date Submitted: 20-Jun-2003
Submitter: [email protected]
Responsible Engineer: [email protected], [email protected], [email protected]
Responsible Manager: [email protected]
CTE group: CPRE NWS US
Responsible Writer: [email protected]
Distribution: Public SunSolve

Workflow History:

WF State: Issued, 29-Jul-2003, David Mariotto
WF Note: Re-released as Resolved, updated

WF State: Rework, 29-Jul-2003, David Mariotto
WF Note: Sending today for re-release as Resolved

WF State: Rework, 28-Jul-2003, David Mariotto
WF Note: Updating Impact, Relief/Workaround, Resolution,
and patch

WF State: Issued, 08-Jul-2003, David Mariotto
WF Note: Sending for release

WF State: Draft, 08-Jul-2003, David Mariotto
WF Note: OKd by Younan. Sending for release this afternoon.

WF State: Draft, 08-Jul-2003, David Mariotto
WF Note: Requesting signoff.

WF State: Draft, 07-Jul-2003, David Mariotto
WF Note: Got final info from Eng, sent to Olaf for one last look.

WF State: Draft, 02-Jul-2003, David Mariotto
WF Note: Requested addtl info from Eng for final draft

WF State: Draft, 27-Jun-2003, David Mariotto
WF Note: Have not received response from engineering to clarifiy
open issues...


WF State: Draft, 24-Jun-2003, David Mariotto
WF Note: Sent for review

WF State: Draft, 23-Jun-2003, David Mariotto
WF Note: Article created.

Exported from KMS Creator Sat May 21 09:01:03 2005 GMT, [email protected]
Internal SA-FAB Eng Submission
Sun StorEdge 3510 in Redundant Controller Configuration May Experience Higher Rate of Controller Failover Under Heavy I/O Load

Product_uuid
58553d0e-11f4-11d7-9b05-ad24fcfd42fa|Sun StorageTek 3510 FC Array

References

SUNPATCH:113723-04

Attachments

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