Linux Replicated High Availability Manager 1.4.2 (DRBD 8.2 based branch)

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04-15-2008

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Linux Replicated High Availability Manager 1.4.2 (DRBD 8.2 based branch)

The Linux Replicated High Availability Manager (Linuxha.net) allows the creation of clusters for application high availability through data replication. Currently, clusters are limited to two nodes, but multiple applications can be hosted and failed-over between the nodes. The software uses DRBD to provide the data replication facillity. License: GNU General Public License v2 Changes:
Many minor and major bugs have been fixed. The administrators guide documentation has been updated to reflect these changes and several other improvements.

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clusters

clusters(4)						     Sun Cluster File Formats						       clusters(4)

NAME

       clusters - cluster names database

SYNOPSIS

       /etc/clusters

DESCRIPTION

       The  clusters  file contains information regarding the known clusters in the local naming domain.  For each cluster a single line should be
       present with the following information:

	 clustername	     whitespace-delimited list of hosts

       Expansion is recursive if a name on the right hand side is tagged with the expansion marker: ``*''.

       Items are separated by any number of blanks and/or TAB characters.  A `#' indicates the beginning of a comment. Characters up to the end of
       the line are not interpreted by routines which search the file.

       Cluster names may contain any printable character other than an upper case character, a field delimiter, NEWLINE, or comment character. The
       maximum length of a cluster name is 32 characters.

       This information is used by Sun Cluster system administration tools, like cconsole(1M) to specify a group  of  nodes  to  administer.   The
       names used in this database must be host names, as used in the hosts database.

       The database is available from either NIS or NIS+ maps or a local file.	Lookup order can be specified in the /etc/nsswitch.conf file.  The
       default order is nis files.

EXAMPLES

       Example 1 A Sample /etc/clusters File

       Here is a typical  /etc/clusters file:

	 bothclusters	     *planets *wine
	 planets	     mercury venus
	 wine		     zinfandel merlot chardonnay riesling

       Here is a typical  /etc/nsswitch.conf entry:

	 clusters: nis files

FILES

       /etc/clusters

       /etc/nsswitch.conf

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWsczu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Uncommitted		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cconsole(1M), chosts(1M), serialports(4), nsswitch.conf(4), attributes(5)

Sun Cluster 3.2 						    26 Jun 2006 						       clusters(4)

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