Sun StorEdge[TM] 3510 - What is the "Remote Redundant Controller" setting for?

Asset ID:	1-71-1017944.1
Update Date:	2009-09-22
Keywords:

Solution Type Technical Instruction Sure

Solution 1017944.1 : Sun StorEdge[TM] 3510 - What is the "Remote Redundant Controller" setting for?

Related Items


Sun Storage 3510 FC Array

Related Categories


GCS>Sun Microsystems>Storage - Disk>Modular Disk - 3xxx Arrays

PreviouslyPublishedAs
229213

Description

On the firmware (tip/telnet) interface for the Sun StorEdge[TM] 3510 (SE3510) array, there is a menu entry for 'remote redundant controller' which can be either "enabled" or "disabled."  It is disabled by default.
The firmware manual (for 3.27) only mentions this parameter to say:
Do not use these menu options.  They are reserved for
specific troubleshooting procedures and should only be
used by qualified technicians.
This seems very cryptic... What does this parameter do?  Why does
it need to remain 'disabled, and what could happen if you 'enable' it?

Steps to Follow

This parameter was originally introduced on previous Dothill arrays for
enabling remote redundant controllers in separate chassis at remote
locations.  Neither Dothill nor Sun Microsystems support this type of
hardware configuration on the SE3510 array, and therefore, this parameter
(remote redundant controller) MUST remain 'disabled'.
One odd thing that was seen when the variable was 'enabled' was a lack of
correct controller failover when the primary controller failed.
The next version of the firmware documentation will be changed to
reflect this:
Do not use the Remote Redundant Controller menu option.
It is not supported by the RAID controller hardware.

Product
Sun StorageTek 3510 FC Array

Previously Published As
80120

Change History
Date: 2005-01-31
User Name: 71396
Action: Approved
Comment: Performed final review of article

Update product name and trademarking

Publishing.
Version: 3
Date: 2005-01-27
User Name: 71396
Action: Accept
Comment:
Version: 0
Date: 2005-01-27
User Name: 38107
Action: Approved
Comment: very helpful doc
Version: 0
Date: 2005-01-27
User Name: 38107
Action: Accept
Comment:
Version: 0
Date: 2005-01-27
User Name: 38107
Action: Unlock
Comment:
Version: 0
Date: 2005-01-27
User Name: 26973
Action: Approved
Comment: got this information right from dothill in response to an escalation i worked.
Version: 0
Date: 2005-01-27
User Name: 26973
Action: Created
Comment:
Version: 0
Product_uuid
58553d0e-11f4-11d7-9b05-ad24fcfd42fa|Sun StorageTek 3510 FC Array

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