Sun StorEdge T3 Arrays: Troubleshooting controller failure

Asset ID:	1-71-1005177.1
Update Date:	2012-07-16
Keywords:

Solution Type Technical Instruction Sure

Solution 1005177.1 : Sun StorEdge T3 Arrays: Troubleshooting controller failure

Related Items


Sun Storage T3 Array
 Sun Storage T3+ Array

Related Categories


PLA-Support>Sun Systems>DISK>Arrays>SN-DK: T3_6020_6120

PreviouslyPublishedAs
207265

Description
In order to provide you the most accurate fix, please validate that each statement under the symptoms below is true for your environment. These symptoms will hyperlink you into a relevant content that will 1) tell you how to validate the listed symptom and 2) how to fix the symptom if it is true for your environment. The listed symptoms are ordered in the most appropriate sequence to isolate the issue and be certain about the related fix. Please do not skip a step.

Symptoms:

Controller offline

disabled controller

offline paths

can't see device

Steps to Follow
Sun StorEdge T3 controller failure

NOTE: This is a sub-set of <Document: 1018272.1> "Troubleshooting Sun StorEdge[TM] T3 Hardware" This document will help with disabled controllers based on similar "fru stat" output below:

storage-t3b:/:<7>fru stat
CTLR    STATUS   STATE       ROLE        PARTNER    TEMP
------  -------  ----------  ----------  -------    ----
u1ctr   ready    enabled     master      -          31
u2ctr   ready    
disabled
    -           -          29

Troubleshooting Steps:

NOTE: There are two scenarios based on which controller has failed. Choose the appropriate option based on your "fru stat".

Controller u1ctr disabled

1. Enable the controller with "enable u<encid>" command.

Example:

storage-t3b:/:<3>enable u1

NOTE: Wait about 5 minute before running "fru stat" as to allow the array to boot the disabled controller.

2. If the u1 controller is still not ready enabled, then replace controller, otherwise proceed step 3.

NOTE: Do not proceed to step 3 unless U1 and U2 are enabled.

3. disable u2 <---this will allow for U1 to be the master controller (preferred config)

4. enable u2

NOTE: Wait about 5 minute before running "fru stat" as to allow the array to boot the disabled controller.

NOTE: Now "fru stat" should show the master as u1 and the alternate as u2

CTLR    STATUS   STATE       ROLE        PARTNER    TEMP
------  -------  ----------  ----------  -------    ----
u1ctr   ready    enabled     master      u2ctr      31
u2ctr   ready    enabled     alt master  u1ctr      29

Controller u2ctr disabled

1. Enable the controller with "enable u<encid>" command.

Example:

storage-t3b:/:<3>enable u2

2. Verify that the controller is now ready and enabled with the "fru stat" command.

NOTE: Wait about 5 minute before running "fru stat" as to allow the array to boot the disabled controller.

3. If the controller is still not ready enabled, then replace controller.

Product
Sun StorageTek T3 Array
Sun StorageTek T3+ Array

Internal Comments
This document contains normalized content and is managed by the the Domain Lead(s) of the respective domains.

Place Sun Internal-Use Only content here.
T3, T3+, disabled controller, audited
Previously Published As
86656

Change History
Date: 2006-08-18
User Name: 7058
Action: Approved
Comment: Reformatted doc.
Re-indexed links.
Spell ck OK.
OK to publish.
Version: 3

Date: 2006-08-17
User Name: 123825
Action: Approved
Comment: t3 norm
Version: 0
Date: 2006-08-17
User Name: 78962
Action: Approved
Comment: T3 norm
Version: 0
Date: 2006-08-15
User Name: 78962
Action: Created
Comment:
Version: 0

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