[K12OSN] RSYNC Question

[Jim Kronebusch]

Thanks, I'll give it a try.

-----Original Message-----
From: k12osn-admin at redhat.com [mailto:k12osn-admin at redhat.com] On Behalf
Of Spencer, John
Sent: Wednesday, March 10, 2004 12:15 PM
To: 'k12osn at redhat.com'
Subject: RE: [K12OSN] RSYNC Question


The man page is very helpful, below is what I do:
 
rsync -avcz -e ssh $Sourcehost:/$path $destinationhost:/$path
 
a = archive  **backup mode
v = verbose  **good to not use when being run as a cronjob or as an
unattended script, ie 'rsync -acz'
c = checksum  **verify packets don't change in transit
z = compress  **decrease network bandwidth needed for use
e = specify protocol to use, I prefer ssh to envrypt the packet traffic

   _____  

From: k12osn-admin at redhat.com [mailto:k12osn-admin at redhat.com] On Behalf
Of Jim Kronebusch
Sent: Wednesday, March 10, 2004 9:45 AM
To: k12osn at redhat.com
Subject: [K12OSN] RSYNC Question


I have seen some stuff referring to rsync with backing up servers.  Can
anyone tell me how this works?  Can I use this to make an exact copy of
my running production server to a backup server of either equal or
lesser hardware.  Idea being that upon hardware failure of the
production server I would have an up to date backup (or possibly only
24hrs behind) to swap in and run as a temporary production server until
the main hardware was repaired.  Let me know if this is feasible (maybe
I need identical hardware) and if so where to start (what commands to
issue).  Ideally I would like to have the two machines running a
scheduled periodic backup that was automatic and did not require any
manual intervention.
 
Thanks


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