25.7 Undoing a Stage in the Rolling Upgrade


25.7 Undoing a Stage in the Rolling Upgrade

Practically any stage, with the exception of the Switch Stage and the Clean Stage, can be undone. What do we mean? Well, we have the capability of undoing stages of the Rolling Upgrade. In the next table, we show which stages can be undone, how to undo the stage, and any comments related to this process. See Table 25-5.

Table 25-5: How to Undo

How to Undo

Stage to Undo

Command

Comments

Setup

clu_upgrade undo setup

This must be executed on the lead member and no other cluster members may be running on tagged files. If there are cluster members running on tagged files then use the command clu_upgrade tagged disable memberid command to disable the tagged files on the specified cluster member.

Preinstall

clu_upgrade undo preinstall

This command must be run on the lead cluster member.

Install

clu_upgrade undo install

Halt the lead cluster member and then execute this command on any other cluster member. When this command is completed then boot the lead cluster member.

Postinstall

clu_upgrade undo postinstall

This command must be run on the lead cluster member.

Roll

clu_upgrade undo roll memberid

Halt the cluster member which you wish to undo the Roll Stage then execute this command on any other cluster member. When this command is completed then boot the halted cluster member.




TruCluster Server Handbook
TruCluster Server Handbook (HP Technologies)
ISBN: 1555582591
EAN: 2147483647
Year: 2005
Pages: 273

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