Veritas-bu

[Veritas-bu] Datacenter versus TSM

2003-03-12 12:35:41
Subject: [Veritas-bu] Datacenter versus TSM
From: Greg.Pearson AT bp DOT com (Pearson, Gregory M (Getronics))
Date: Wed, 12 Mar 2003 11:35:41 -0600
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You are absolutely correct, Mark.  I forgot to mention that you do not have
to have vault to do this, as it can be scripted through CLI.  However, for
non-scripting people, the vault option will allow the dupes from disk to
tape as well.
 
Also, another good point that Mark brings up -- you need quite a chunk of
disk space to do this (hopefully on a SAN).
 
Greg

-----Original Message-----
From: Donaldson, Mark [mailto:Mark.Donaldson AT experianems DOT com]
Sent: Wednesday, March 12, 2003 11:25 AM
To: Pearson, Gregory M (Getronics); 'stafforj AT core.afcc DOT com'; David A. 
Chapa
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Datacenter versus TSM



Backing-up to a disk storage unit then duplicating to tape is very possible
- it doesn't require the vault product, either.  I've scripted it for my
frequent, small backups of Oracle archived redo logs.

I wouldn't recommend the method for large bulky backups, though, unless you
have vast tracts of unused disks for buffering.

-M 

-----Original Message----- 
From: Pearson, Gregory M (Getronics) [ mailto:Greg.Pearson AT bp DOT com
<mailto:Greg.Pearson AT bp DOT com> ] 
Sent: Wednesday, March 12, 2003 10:09 AM 
To: 'stafforj AT core.afcc DOT com'; David A. Chapa 
Cc: veritas-bu AT mailman.eng.auburn DOT edu 
Subject: RE: [Veritas-bu] Datacenter versus TSM 


Yeah, I am curious too, as I talked over some options with a couple of 
engineers from Veritas, and we tossed around a few ideas.  However, since we

are W2K, writing to a disk pool first is a challenge due to W2K desiring a 
signature on the disk.  Therefore, using a rotating disk pool for a storage 
device is pretty much out of the question in the M$ world.  however, I 
believe with *NIX this is far more feasible.  Back up to disk storage device

first, then dupe to tape using vaulting...of course work out the semantics 
for breaking the disk off of one media server and attaching it to another...

Is this similar to your idea? 

Just an FYI on the TSM also, I am pretty sure the database has been ported 
to DB/2.  There are some things that you can do to ensure the integrity of 
the database, but it requires some effort.  The concept of one full and 
incrementals forever is still the recommended rotation that is used, just 
keep in mind that a full system recovery may require a LOT of tapes... 

Greg 

-----Original Message----- 
From: Johnie Stafford [ mailto:stafforj AT core.afcc DOT com
<mailto:stafforj AT core.afcc DOT com> ] 
Sent: Wednesday, March 12, 2003 10:49 AM 
To: David A. Chapa 
Cc: veritas-bu AT mailman.eng.auburn DOT edu 
Subject: Re: [Veritas-bu] Datacenter versus TSM 


>>> On Wed, 12 Mar 2003 10:19:28 -0600, "David A. Chapa" 
<david AT datastaff DOT com> said: 

 dc> Having said that...there are some very cool things about TSM. 
 dc> The coolest thing is that is caches backup to disk before 
 dc> streaming to tape...or should I say SCREAM to tape.  This is 
 dc> something that I would love to see VERITAS do, but I think I have 
 dc> an idea that will achieve the same thing without having VERITAS' 
 dc> code being changed. 

Aw come on David, you can't leave us hanging like that! What's your 
idea? 

Johnie 

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<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=876273117-12032003>You 
are absolutely correct, Mark.&nbsp; I forgot to mention that you do not have to 
have vault to do this, as it can be scripted through CLI.&nbsp; However, for 
non-scripting people, the vault option will allow the dupes from disk to tape 
as 
well.</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN 
class=876273117-12032003></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=876273117-12032003>Also, 
another good point that Mark brings up -- you need quite a chunk of disk space 
to do this (hopefully on a SAN).</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN 
class=876273117-12032003></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN 
class=876273117-12032003>Greg</SPAN></FONT></DIV>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
  <DIV align=left class=OutlookMessageHeader dir=ltr><FONT face=Tahoma 
  size=2>-----Original Message-----<BR><B>From:</B> Donaldson, Mark 
  [mailto:Mark.Donaldson AT experianems DOT com]<BR><B>Sent:</B> Wednesday, 
March 12, 
  2003 11:25 AM<BR><B>To:</B> Pearson, Gregory M (Getronics); 
  'stafforj AT core.afcc DOT com'; David A. Chapa<BR><B>Cc:</B> 
  veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> RE: [Veritas-bu] 
  Datacenter versus TSM<BR><BR></DIV></FONT>
  <P><FONT size=2>Backing-up to a disk storage unit then duplicating to tape is 
  very possible - it doesn't require the vault product, either.&nbsp; I've 
  scripted it for my frequent, small backups of Oracle archived redo 
  logs.</FONT></P>
  <P><FONT size=2>I wouldn't recommend the method for large bulky backups, 
  though, unless you have vast tracts of unused disks for buffering.</FONT></P>
  <P><FONT size=2>-M</FONT> </P>
  <P><FONT size=2>-----Original Message-----</FONT> <BR><FONT size=2>From: 
  Pearson, Gregory M (Getronics) [<A 
  href="mailto:Greg.Pearson AT bp DOT com">mailto:Greg.Pearson AT bp DOT 
com</A>]</FONT> 
  <BR><FONT size=2>Sent: Wednesday, March 12, 2003 10:09 AM</FONT> <BR><FONT 
  size=2>To: 'stafforj AT core.afcc DOT com'; David A. Chapa</FONT> <BR><FONT 
  size=2>Cc: veritas-bu AT mailman.eng.auburn DOT edu</FONT> <BR><FONT 
size=2>Subject: 
  RE: [Veritas-bu] Datacenter versus TSM</FONT> </P><BR>
  <P><FONT size=2>Yeah, I am curious too, as I talked over some options with a 
  couple of</FONT> <BR><FONT size=2>engineers from Veritas, and we tossed 
around 
  a few ideas.&nbsp; However, since we</FONT> <BR><FONT size=2>are W2K, writing 
  to a disk pool first is a challenge due to W2K desiring a</FONT> <BR><FONT 
  size=2>signature on the disk.&nbsp; Therefore, using a rotating disk pool for 
  a storage</FONT> <BR><FONT size=2>device is pretty much out of the question 
in 
  the M$ world.&nbsp; however, I</FONT> <BR><FONT size=2>believe with *NIX this 
  is far more feasible.&nbsp; Back up to disk storage device</FONT> <BR><FONT 
  size=2>first, then dupe to tape using vaulting...of course work out the 
  semantics</FONT> <BR><FONT size=2>for breaking the disk off of one media 
  server and attaching it to another...</FONT> <BR><FONT size=2>Is this similar 
  to your idea? </FONT></P>
  <P><FONT size=2>Just an FYI on the TSM also, I am pretty sure the database 
has 
  been ported</FONT> <BR><FONT size=2>to DB/2.&nbsp; There are some things that 
  you can do to ensure the integrity of</FONT> <BR><FONT size=2>the database, 
  but it requires some effort.&nbsp; The concept of one full and</FONT> 
  <BR><FONT size=2>incrementals forever is still the recommended rotation that 
  is used, just</FONT> <BR><FONT size=2>keep in mind that a full system 
recovery 
  may require a LOT of tapes...</FONT> </P>
  <P><FONT size=2>Greg</FONT> </P>
  <P><FONT size=2>-----Original Message-----</FONT> <BR><FONT size=2>From: 
  Johnie Stafford [<A 
  href="mailto:stafforj AT core.afcc DOT com">mailto:stafforj AT core.afcc DOT 
com</A>]</FONT> 
  <BR><FONT size=2>Sent: Wednesday, March 12, 2003 10:49 AM</FONT> <BR><FONT 
  size=2>To: David A. Chapa</FONT> <BR><FONT size=2>Cc: 
  veritas-bu AT mailman.eng.auburn DOT edu</FONT> <BR><FONT size=2>Subject: Re: 
  [Veritas-bu] Datacenter versus TSM</FONT> </P><BR>
  <P><FONT size=2>&gt;&gt;&gt; On Wed, 12 Mar 2003 10:19:28 -0600, "David A. 
  Chapa"</FONT> <BR><FONT size=2>&lt;david AT datastaff DOT com&gt; 
said:</FONT> </P>
  <P><FONT size=2>&nbsp;dc&gt; Having said that...there are some very cool 
  things about TSM.</FONT> <BR><FONT size=2>&nbsp;dc&gt; The coolest thing is 
  that is caches backup to disk before</FONT> <BR><FONT size=2>&nbsp;dc&gt; 
  streaming to tape...or should I say SCREAM to tape.&nbsp; This is</FONT> 
  <BR><FONT size=2>&nbsp;dc&gt; something that I would love to see VERITAS do, 
  but I think I have</FONT> <BR><FONT size=2>&nbsp;dc&gt; an idea that will 
  achieve the same thing without having VERITAS'</FONT> <BR><FONT 
  size=2>&nbsp;dc&gt; code being changed.</FONT> </P>
  <P><FONT size=2>Aw come on David, you can't leave us hanging like that! 
What's 
  your</FONT> <BR><FONT size=2>idea?</FONT> </P>
  <P><FONT size=2>Johnie</FONT> </P>
  <P><FONT size=2>_______________________________________________</FONT> 
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target=_blank>http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu</A></FONT>
 
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