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Full Discussion: rsync
Top Forums UNIX for Dummies Questions & Answers rsync Post 302322205 by tical00 on Wednesday 3rd of June 2009 05:53:18 AM
Old 06-03-2009
I believe rsync will know not to backup files that have already been backed up.

From man pages:

Rsync is a fast and extraordinarily versatile file copying tool. It can copy locally, to/from another host over any remote shell, or
to/from a remote rsync daemon. It offers a large number of options that control every aspect of its behavior and permit very flexible
specification of the set of files to be copied. It is famous for its delta-transfer algorithm, which reduces the amount of data sent
over the network by sending only the differences between the source files and the existing files in the destination.
Rsync is widely
used for backups and mirroring and as an improved copy command for everyday use.

Hope this helps
 

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OCF_HEARTBEAT_RSYNCD(7) 					OCF resource agents					   OCF_HEARTBEAT_RSYNCD(7)

NAME
ocf_heartbeat_rsyncd - Manages an rsync daemon SYNOPSIS
rsyncd [start | stop | monitor | meta-data | validate-all] DESCRIPTION
This script manages rsync daemon SUPPORTED PARAMETERS
binpath The rsync binary path. For example, "/usr/bin/rsync" (optional, string, default "rsync") conffile The rsync daemon configuration file name with full path. For example, "/etc/rsyncd.conf" (optional, string, default "/etc/rsyncd.conf") bwlimit This option allows you to specify a maximum transfer rate in kilobytes per second. This option is most effective when using rsync with large files (several megabytes and up). Due to the nature of rsync transfers, blocks of data are sent, then if rsync determines the transfer was too fast, it will wait before sending the next data block. The result is an average transfer rate equaling the specified limit. A value of zero specifies no limit. (optional, string, no default) SUPPORTED ACTIONS
This resource agent supports the following actions (operations): start Starts the resource. Suggested minimum timeout: 20s. stop Stops the resource. Suggested minimum timeout: 20s. monitor Performs a detailed status check. Suggested minimum timeout: 20s. Suggested interval: 60s. validate-all Performs a validation of the resource configuration. Suggested minimum timeout: 20s. meta-data Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5s. EXAMPLE
The following is an example configuration for a rsyncd resource using the crm(8) shell: primitive p_rsyncd ocf:heartbeat:rsyncd op monitor depth="0" timeout="20s" interval="60s" SEE ALSO
http://www.linux-ha.org/wiki/rsyncd_(resource_agent) AUTHOR
Linux-HA contributors (see the resource agent source for information about individual authors) resource-agents UNKNOWN 06/09/2014 OCF_HEARTBEAT_RSYNCD(7)
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