Veritas-bu

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

2002-04-02 00:39:07
Subject: [Veritas-bu] RE: Backing up lots of small remote sites.
From: begrn AT wmdata DOT no (Grønås Bengt)
Date: Tue, 2 Apr 2002 07:39:07 +0200
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Remember that this list is also read by non-"open-source"-people ...
 
 
 

-----Original Message-----
From: Fabbro, Andrew P [mailto:Fabbro.Andrew AT cnf DOT com]
Sent: 25. mars 2002 22:18
To: 'Anderson, David'; 'Richard Hellier'
Cc: 'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: RE: [Veritas-bu] RE: Backing up lots of small remote sites.



rsync refers to rsync ;) 

        http://samba.anu.edu.au/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
<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 <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 
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<DIV><FONT color=#0000ff face=Verdana size=2><SPAN 
class=234283305-02042002>Remember that this list is also read by 
non-"open-source"-people ...</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana size=2><SPAN 
class=234283305-02042002></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=#0000ff face=Verdana size=2><SPAN 
class=234283305-02042002></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=#0000ff face=Verdana size=2><SPAN 
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style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; 
PADDING-LEFT: 5px">
  <DIV align=left class=OutlookMessageHeader dir=ltr><FONT face=Tahoma 
  size=2>-----Original Message-----<BR><B>From:</B> Fabbro, Andrew P 
  [mailto:Fabbro.Andrew AT cnf DOT com]<BR><B>Sent:</B> 25. mars 2002 
  22:18<BR><B>To:</B> 'Anderson, David'; 'Richard Hellier'<BR><B>Cc:</B> 
  'veritas-bu AT mailman.eng.auburn DOT edu'<BR><B>Subject:</B> RE: 
[Veritas-bu] RE: 
  Backing up lots of small remote sites.<BR><BR></DIV></FONT>
  <P><FONT size=2>rsync refers to rsync ;)</FONT> </P>
  <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT size=2><A 
  href="http://samba.anu.edu.au/rsync/"; 
  target=_blank>http://samba.anu.edu.au/rsync/</A></FONT> </P>
  <P><FONT size=2>Think rdist with more bells and whistles.</FONT> </P><BR><BR>
  <P><FONT size=2>-----Original Message-----</FONT> <BR><FONT size=2>From: 
  Anderson, David [<A 
  href="mailto:anderson.david AT scrippshealth DOT org">mailto:anderson.david 
AT scrippshealth DOT org</A>]</FONT> 
  <BR><FONT size=2>Sent: Monday, March 25, 2002 1:09 PM</FONT> <BR><FONT 
  size=2>To: 'Richard Hellier'; Anderson, David</FONT> <BR><FONT size=2>Cc: 
  'veritas-bu AT mailman.eng.auburn DOT edu'</FONT> <BR><FONT size=2>Subject: 
RE: 
  [Veritas-bu] RE: Backing up lots of small remote sites.</FONT> </P><BR>
  <P><FONT size=2>Hmmmm....Does "rsync" refer to a product or 
methodology?&nbsp; 
  Does "rsync" mean</FONT> <BR><FONT size=2>that it has an image some place 
else 
  (like a matching server at a major</FONT> <BR><FONT size=2>corporate 
  location)?&nbsp; Generally, directory and file synchronization is big</FONT> 
  <BR><FONT size=2>overhead, especially if you are migrating every change (as 
  opposed to a</FONT> <BR><FONT size=2>scheduled event) across the link.&nbsp; 
  This kind of thing usually means that</FONT> <BR><FONT size=2>other 
  applications that have to use that link are degraded, sometimes</FONT> 
  <BR><FONT size=2>seriously.</FONT> </P>
  <P><FONT size=2>David Anderson</FONT> <BR><FONT size=2>Scripps</FONT> </P>
  <P><FONT size=2>-----Original Message-----</FONT> <BR><FONT size=2>From: 
  Richard Hellier [<A href="mailto:rlh AT lsil DOT com">mailto:rlh AT lsil DOT 
com</A>]</FONT> 
  <BR><FONT size=2>Sent: Monday, March 25, 2002 12:55 PM</FONT> <BR><FONT 
  size=2>To: Anderson, David</FONT> <BR><FONT size=2>Cc: 
  'veritas-bu AT mailman.eng.auburn DOT edu'</FONT> <BR><FONT size=2>Subject: 
Re: 
  [Veritas-bu] RE: Backing up lots of small remote sites.</FONT> </P><BR>
  <P><FONT size=2>Folks,</FONT> <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  <FONT size=2>Can I throw in my ten cents' worth? What we do to backup 
  smallish</FONT> <BR><FONT size=2>sites</FONT> <BR><FONT size=2>is to use 
  the</FONT> <BR><FONT size=2>"rsync" software across a WAN (or VPN) link to 
  send down each day's</FONT> <BR><FONT size=2>"deltas".&nbsp; The initial 
  sync</FONT> <BR><FONT size=2>takes some time, of course, but can be achieved 
  by shipping disks</FONT> <BR><FONT size=2>(rather than tying up the 
  link</FONT> <BR><FONT size=2>for a week ...).</FONT> </P>
  <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT size=2>The savings 
  are:</FONT> </P>
  <P><FONT size=2>* No local admin staff needed to change tapes</FONT> </P>
  <P><FONT size=2>* No library / tapes needed at remote site</FONT> </P>
  <P><FONT size=2>* DR procedures are greatly simplified</FONT> </P>
  <P><FONT size=2>* Restores can be speeded up since the required files 
  are</FONT> <BR><FONT size=2>&nbsp; "spinning" on your disks at the central 
  site and so can be</FONT> <BR><FONT size=2>&nbsp; turned around without 
  needing tapes!</FONT> </P>
  <P><FONT size=2>* Large economies of scale are possible by spending the 
  itty-bitty</FONT> <BR><FONT size=2>&nbsp; amounts from the remote sites on a 
  humungous library (ies) at the</FONT> <BR><FONT size=2>&nbsp; central 
  site.</FONT> </P>
  <P><FONT size=2>* A few staff can manage lots of sites once the framework is 
  in place</FONT> </P>
  <P><FONT size=2>Cheers,</FONT> </P>
  <P><FONT size=2>Richard.</FONT> </P><BR><BR>
  <P><FONT size=2>_______________________________________________</FONT> 
  <BR><FONT size=2>Veritas-bu maillist&nbsp; -&nbsp; 
  Veritas-bu AT mailman.eng.auburn DOT edu</FONT> <BR><FONT size=2><A 
  href="http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu"; 
  
target=_blank>http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu</A></FONT>
 
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