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HB_STANDBY(1)		    General Commands Manual		 HB_STANDBY(1)

NAME
       hb_standby -  hb_standby	is a simple linux-ha shell script. It issues a
       failover	from the node where it is running to the other node, if	avail-
       able.

SYNOPSIS
       hb_standby [all|foreign|local|failback]

DESCRIPTION
       The  full path is usually /usr/lib/heartbeat/hb_standby.	 To get	a list
       of the options to hb_standby issue the command,
	"/usr/lib/heartbeat/hb_standby	--help"	 .    NOTE:   For   historical
       reasons,	 unlike	 most scripts where failure to specify an option gives
       you the list of possible	options,  failure  to  provide	an  option  to
       hb_standby is equivalent	to "hb_standby all".

       The  meaning  of	 the  options is relative. For this sample haresources
       file:

       nodea drbddisk::r0 Filesystem::/dev/drbd0::/local/groups::ext3 10.0.0.1
       smb

       nodeb  drbddisk::r1  Filesystem::/dev/drbd1::/local/ldap::ext3 10.0.0.2
       ldap

       hb_standby local
	      When run on nodea, means migrate any resources that nodea	is the
	      preferred	 node  for.  In	this case Samba	would be shutdown, the
	      IP address 10.0.0.1 would	be released,  /local/groups  would  be
	      unmounted,  /dev/drbd0  would be placed into secondary and nodeb
	      would take all these services over.  When	run on nodeb, OpenLDAP
	      would shutdown, 10.0.0.2 would be	released, /local/ldap would be
	      unmounted, /dev/drbd1 would be placed into  Secondary  mode  and
	      nodea would take over all	these services.

       hb_standby foreign
	      When run on nodea, means migrate any resources that nodea	is NOT
	      the preferred node for.  In this case OpenLDAP  would  shutdown,
	      10.0.0.2	would  be  released,  /local/ldap  would be unmounted,
	      /dev/drbd1 would be placed into Secondary	mode and  nodeb	 would
	      take over	all these services.  When run on nodeb,	Samba would be
	      shutdown,	 the  IP   address   10.0.0.1	would	be   released,
	      /local/groups  would  be	unmounted,  /dev/drbd0 would be	placed
	      into secondary and nodea would take all these services over.

       hb_standby all
	      Regardless of which node	it's  run  on  means  to  release  all
	      resources	so the other node takes	over all resources.

       hb_standby
	      Without an argument is the same as "hb_standby all"

       hb_standby failback
	      Same as "hb_standby foreign"

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

SEE ALSO
       hb_takeover(1), heartbeat(8), cl_status(1)

DOCUMENTATION
       More  information  may  be  found   at	http://linux-ha.org/hb_standby
       <http://linux-ha.org/hb_standby>

AUTHORS
       linux-ha	 --  Alan  Robertson <alanr@unix.sh> <mailto:alanr@unix.sh> et
       al.

       man	page	  --	  Guochun	Shi	  <gshi@ncsa.uiuc.edu>
       <mailto:gshi@ncsa.uiuc.edu>

				9th August 2005			 HB_STANDBY(1)

NAME | SYNOPSIS | DESCRIPTION | CAVEATS | SEE ALSO | DOCUMENTATION | AUTHORS

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