How do I failover a Service Group?
You
can manually failover a Service Group two ways:
(1) hagrp -switch {Service Group} -to {target node}
(2) hagrp -offline {Service Group} -sys {current node} hagrp -online {Service Group} -sys {target node}
The second way simply gives you more control. After you offline the Group, you can online it anywhere when you want to. The first way is for an immediate "handsoff" failover. VCS can automatically failover Groups if you do the following:
(1) Execute "init 6" or "shutdown -ry 0"
(2) Execute "reboot"
(3) Switch off the machine's power
(4) Cause a "fault", i.e. manually shutdown some service or resource in your Service Group.
(5) Panic the machine.
(1) hagrp -switch {Service Group} -to {target node}
(2) hagrp -offline {Service Group} -sys {current node} hagrp -online {Service Group} -sys {target node}
The second way simply gives you more control. After you offline the Group, you can online it anywhere when you want to. The first way is for an immediate "handsoff" failover. VCS can automatically failover Groups if you do the following:
(1) Execute "init 6" or "shutdown -ry 0"
(2) Execute "reboot"
(3) Switch off the machine's power
(4) Cause a "fault", i.e. manually shutdown some service or resource in your Service Group.
(5) Panic the machine.
About Manas Ranjan Tripathy
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