hb_standby

Name

hb_standby — issues a failover request to the cluster manager

Synopsis

hb_standby [all|foreign|local|failback]

Description

Warning

This command is deprecated. It is only suitable for legacy Heartbeat clusters without Pacemaker enabled. In Pacemaker-enabled clusters, the crm(8) shell supports switching individual nodes into standby mode, and replaces hb_standby.

/usr/share/heartbeat/hb_standby issues a request to the cluster to move resources from the node where it is invoked, to the other node (if it is currently available). The meaning of the options is relative. This manual assumes the following configuration to be present in /etc/ha.d/haresources:

alice drbddisk::r0 Filesystem::/dev/drbd0::/local/groups::ext3 10.0.0.1 smb
bob drbddisk::r1 Filesystem::/dev/drbd1::/local/ldap::ext3 10.0.0.2 ldap

Options

The following options are supported:

local: Migrates any resources that the local node is the preferred node for.
When invoked on alice, Samba would be shut down, the IP address 10.0.0.1 would be released, /local/groups would be unmounted, /dev/drbd0 would be placed into the secondary role and bob would take all these services over.
When run on bob, OpenLDAP would shut down, 10.0.0.2 would be released, /local/ldap would be unmounted, /dev/drbd1 would be placed into the Secondary role and alice would take over all these services.
foreign|failback: Migrates any resources that the local node is not the preferred node for.
When run on alice, OpenLDAP would shut down, 10.0.0.2 would be released, /local/ldap would be unmounted, /dev/drbd1 would be placed into the Secondary role and bob would take over all these services.
When invoked on bob, Samba would be shut down, the IP address 10.0.0.1 would be released, /local/groups would be unmounted, /dev/drbd0 would be placed into the secondary role and alice would take all these services over.
all: Migrates all resources to the other node.

Invoking hb_standby without any options is identical to hb_standby all.

Caveats

hb_standby is only usable in R1-style configurations (i.e., those configured using the haresources file).