Rsync better use for backup Post: 302787363

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Top Forums Shell Programming and Scripting Rsync better use for backup Post 302787363 by ajayram on Friday 29th of March 2013 09:26:56 AM

03-29-2013

Registered User

Rsync better use for backup

Hello,

I have a list of working directory in a remote computer acesssible through ssh and the same directory structure in my home directory of my laptop. I sometimes work on both my laptop and my this other computer.

I usually use Rsync this way to synchronize files

Code:

rsync remotehost@remoteDirectory -auzv /local Directory 
rsync -auzv  /local Directory  remotehost@remoteDirectory

I run both of these as a shell script

This seems to work fine, but the problem that I face is that if I edit a file's nae in the local Host. or delete a file in the remote Host then when I execute these two commands, I get the old files + the new files in both places.

Thus before doing rsync, I would like to (say use ls and diff) to find out which files are not present in the Local Directory but present in the Remote Directory and which files vice versa.

Then I can check for those files, delete them or not, and then do these rsync commands.

If its possible to automate these things, with some better shell scripting than just simple rsync ?

also I want to know how useful is Crontab for these kinds of work. , or can I make Crontab run when both machines are on at a particular point of time in the day / week ?

ajayram

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LEARN ABOUT CENTOS

ocf_heartbeat_rsyncd

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)