Sun Storage 7000 Unified Storage System: How To Shutdown ZFSSA Cluster

Asset ID:	1-71-1379117.1
Update Date:	2011-11-29
Keywords:

Solution Type Technical Instruction Sure

Solution 1379117.1 : Sun Storage 7000 Unified Storage System: How To Shutdown ZFSSA Cluster

Applies to:

Sun ZFS Storage 7420 - Version: Not Applicable and later   [Release: N/A and later ]
Sun ZFS Storage 7320 - Version: Not Applicable and later    [Release: N/A and later]
Sun Storage 7410 Unified Storage System - Version: Not Applicable and later    [Release: N/A and later]
Sun Storage 7310 Unified Storage System - Version: Not Applicable and later    [Release: N/A and later]
Information in this document applies to any platform.
NAS head revision : [not dependent]
BIOS revision : [not dependent]
ILOM revision : [not dependent]
JBODs Model : [J4400|J4410]
CLUSTER related : [yes]

Goal

Understand how to shutdown cluster-configured ZFS Storage Appliance.

Solution

How To Shutdown ZFS Storage Appliance in Cluster Environment

In order to shutdown the storage appliance, you need to follow the steps below.

TASKS SUMMARY

Knowing Cluster State
Shutdown the stand-by head
Shutdown the active-head

STEPS

1) Knowing Cluster State

In order to know the cluster status, run the following command from CLI.

nas-7410-1a:> configuration cluster
nas-7410-1a:configuration cluster> show
Properties:
state = AKCS_OWNER
description = Active (takeover completed)
peer_asn = 365ed33c-3b9d-c533-9349-8014e9da0408
peer_hostname = nas-7410-1b
peer_state = AKCS_STRIPPED
peer_description = Ready (waiting for failback)

"state" indicates the status of the node you are running the command.
"peer_state" indicates the status of the other node.

Check if the both node agrees upon their status.
The status of the nodes can be as follows.

THIS NODE       OTHER   NODE   Condition
--------------  -------------- ---------
AKCS_CLUSTERED  AKCS_CLUSTERED Both nodes are running in normal condition.
AKCS_OWNER      AKCS_STRIPPED  THIS NODE has all the resource and and
                               is an active node.
                               The other node is in stand-by and have 
                               no resource.
AKCS_OWNER      rebooting      Another node is rebooting and THIS NODE has all resources.
AKCS_ONWER       unknown       THIS NODE does not know the partner.

If the status of both heads DO NOT agree, you may be experiencing a problem with cluster. DO NOT PROCEED and contact to Oracle Support for advise.

2) Shutdown the stand-by head

In case THIS NODE is on AKCS_OWNER state, shutdown another head first.
(Let's call the node with the ACSK_STRIPPED state a stand-by head).
For example, for instance, (Notice, it is 7410-1b, NOT 1a)

N.B. In case of active-active configuration (meaning each head has at least one storage pool), you can choose the node to shutdown if both heads have the status of AKCS_CLUSTERED.

nas-7410-1b:configuration cluster> cd /
nas-7410-1b:> maintenance system poweroff
This will turn off power to the appliance. Are you sure? (Y/N)

Hitting Y will shutdown the other head.

Confirm the power if power is off for the stand-by head.

3) Shutdown the active-head

After the stand-by head is powered off, run the following commands to shutdown the active-head.

nas-7410-1a:configuration cluster> cd /
nas-7410-1a:> maintenance system poweroff
This will turn off power to the appliance. Are you sure? (Y/N)

Hitting Y will shutdown the other head.

Confirm the power if power is off for the active head.

4) Shutdown the JBOD

After confirming both heads are shutdown, you can turn off the JBOD.

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