[Veritas-bu] RE: Backing up lots of small remote sites.

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rsync refers to rsync ;)

        http://samba.anu.edu.au/rsync/

Think rdist with more bells and whistles.



-----Original Message-----
From: Anderson, David [mailto:anderson.david AT scrippshealth DOT org]
Sent: Monday, March 25, 2002 1:09 PM
To: 'Richard Hellier'; Anderson, David
Cc: 'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: RE: [Veritas-bu] RE: Backing up lots of small remote sites.


Hmmmm....Does "rsync" refer to a product or methodology?  Does "rsync" mean
that it has an image some place else (like a matching server at a major
corporate location)?  Generally, directory and file synchronization is big
overhead, especially if you are migrating every change (as opposed to a
scheduled event) across the link.  This kind of thing usually means that
other applications that have to use that link are degraded, sometimes
seriously.

David Anderson
Scripps

-----Original Message-----
From: Richard Hellier [mailto:rlh AT lsil DOT com]
Sent: Monday, March 25, 2002 12:55 PM
To: Anderson, David
Cc: 'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: Re: [Veritas-bu] RE: Backing up lots of small remote sites.


Folks,
        Can I throw in my ten cents' worth? What we do to backup smallish
sites
is to use the
"rsync" software across a WAN (or VPN) link to send down each day's
"deltas".  The initial sync
takes some time, of course, but can be achieved by shipping disks
(rather than tying up the link
for a week ...).

        The savings are:

* No local admin staff needed to change tapes

* No library / tapes needed at remote site

* DR procedures are greatly simplified

* Restores can be speeded up since the required files are
  "spinning" on your disks at the central site and so can be
  turned around without needing tapes!

* Large economies of scale are possible by spending the itty-bitty
  amounts from the remote sites on a humungous library (ies) at the
  central site.

* A few staff can manage lots of sites once the framework is in place

Cheers,

Richard.



_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu

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<P><FONT SIZE=3D2>rsync refers to rsync ;)</FONT>
</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2><A =
HREF=3D"http://samba.anu.edu.au/rsync/"; =
TARGET=3D"_blank">http://samba.anu.edu.au/rsync/</A></FONT>
</P>

<P><FONT SIZE=3D2>Think rdist with more bells and whistles.</FONT>
</P>
<BR>
<BR>

<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Anderson, David [<A =
HREF=3D"mailto:anderson.david AT scrippshealth DOT org">mailto:anderson.david@s=
crippshealth.org</A>]</FONT>
<BR><FONT SIZE=3D2>Sent: Monday, March 25, 2002 1:09 PM</FONT>
<BR><FONT SIZE=3D2>To: 'Richard Hellier'; Anderson, David</FONT>
<BR><FONT SIZE=3D2>Cc: 'veritas-bu AT mailman.eng.auburn DOT edu'</FONT>
<BR><FONT SIZE=3D2>Subject: RE: [Veritas-bu] RE: Backing up lots of =
small remote sites.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Hmmmm....Does &quot;rsync&quot; refer to a product or =
methodology?&nbsp; Does &quot;rsync&quot; mean</FONT>
<BR><FONT SIZE=3D2>that it has an image some place else (like a =
matching server at a major</FONT>
<BR><FONT SIZE=3D2>corporate location)?&nbsp; Generally, directory and =
file synchronization is big</FONT>
<BR><FONT SIZE=3D2>overhead, especially if you are migrating every =
change (as opposed to a</FONT>
<BR><FONT SIZE=3D2>scheduled event) across the link.&nbsp; This kind of =
thing usually means that</FONT>
<BR><FONT SIZE=3D2>other applications that have to use that link are =
degraded, sometimes</FONT>
<BR><FONT SIZE=3D2>seriously.</FONT>
</P>

<P><FONT SIZE=3D2>David Anderson</FONT>
<BR><FONT SIZE=3D2>Scripps</FONT>
</P>

<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Richard Hellier [<A =
HREF=3D"mailto:rlh AT lsil DOT com">mailto:rlh AT lsil DOT com</A>]</FONT>
<BR><FONT SIZE=3D2>Sent: Monday, March 25, 2002 12:55 PM</FONT>
<BR><FONT SIZE=3D2>To: Anderson, David</FONT>
<BR><FONT SIZE=3D2>Cc: 'veritas-bu AT mailman.eng.auburn DOT edu'</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [Veritas-bu] RE: Backing up lots of =
small remote sites.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Folks,</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>Can I =
throw in my ten cents' worth? What we do to backup smallish</FONT>
<BR><FONT SIZE=3D2>sites</FONT>
<BR><FONT SIZE=3D2>is to use the</FONT>
<BR><FONT SIZE=3D2>&quot;rsync&quot; software across a WAN (or VPN) =
link to send down each day's</FONT>
<BR><FONT SIZE=3D2>&quot;deltas&quot;.&nbsp; The initial sync</FONT>
<BR><FONT SIZE=3D2>takes some time, of course, but can be achieved by =
shipping disks</FONT>
<BR><FONT SIZE=3D2>(rather than tying up the link</FONT>
<BR><FONT SIZE=3D2>for a week ...).</FONT>
</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>The =
savings are:</FONT>
</P>

<P><FONT SIZE=3D2>* No local admin staff needed to change tapes</FONT>
</P>

<P><FONT SIZE=3D2>* No library / tapes needed at remote site</FONT>
</P>

<P><FONT SIZE=3D2>* DR procedures are greatly simplified</FONT>
</P>

<P><FONT SIZE=3D2>* Restores can be speeded up since the required files =
are</FONT>
<BR><FONT SIZE=3D2>&nbsp; &quot;spinning&quot; on your disks at the =
central site and so can be</FONT>
<BR><FONT SIZE=3D2>&nbsp; turned around without needing tapes!</FONT>
</P>

<P><FONT SIZE=3D2>* Large economies of scale are possible by spending =
the itty-bitty</FONT>
<BR><FONT SIZE=3D2>&nbsp; amounts from the remote sites on a humungous =
library (ies) at the</FONT>
<BR><FONT SIZE=3D2>&nbsp; central site.</FONT>
</P>

<P><FONT SIZE=3D2>* A few staff can manage lots of sites once the =
framework is in place</FONT>
</P>

<P><FONT SIZE=3D2>Cheers,</FONT>
</P>

<P><FONT SIZE=3D2>Richard.</FONT>
</P>
<BR>
<BR>

<P><FONT =
SIZE=3D2>_______________________________________________</FONT>
<BR><FONT SIZE=3D2>Veritas-bu maillist&nbsp; -&nbsp; =
Veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu"; =
TARGET=3D"_blank">http://mailman.eng.auburn.edu/mailman/listinfo/veritas=
-bu</A></FONT>
</P>

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