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Poor choice...well, to get a "little" technical: all backup choices are poor
choices for backing up millions of files in one directory. The OS is the
bottleneck. It'll be even worse restoring it.
Options:
(1) Try using wildcards to break the directory up into lots of streams.
It's in the SAG.
(2) Raw volume backups don't work very well on NT because the filesystem has
to be completely quiesced and NT doesn't do that very well, but if you have
enterprise storage and can snapshot, that's another option.
(3) Wait for Flash Backup to be available on NT (I think it's only on
Solaris and HP-UX, but should be on NT in a quarter or two).
-----Original Message-----
From: Sandler, Mike [mailto:MSandler AT destinyhealth DOT com]
Sent: Thursday, March 27, 2003 7:18 AM
To: 'Register, Joe'; 'Veritas-bu AT mailman.eng.auburn DOT edu'
Subject: RE: [Veritas-bu] NT 2000 backup of 1 million files one directory
Sorry I can't get too technical here but;
Veritas is a poor choice for this type of backup requirement. This is
because it first creates the index's for all the files before actually
beginning the copy to tape. The result is an extremely long duration for
the backup (chances are the window of opportunity is too short to run this
job which can take easily take 8 or more hours. We have stopped using
Veritas because of this very problem. Veritas knows of this issue and there
is no current work around.
-----Original Message-----
From: Register, Joe [mailto:jregister AT citistreetonline DOT com]
Sent: Thursday, March 27, 2003 9:54 AM
To: 'Veritas-bu AT mailman.eng.auburn DOT edu'
Subject: [Veritas-bu] NT 2000 backup of 1 million files one directory
Can anyone give advise of backing up a 2000 directory with over 1 million
files in it. We have a program (a well written one, you can tell) that
creates HTML files and all must go in one directory on a 2k server. My
master is a 2k 4.5 NBU DataCenter, the files are on a 2k 4.5 NBU client. The
backup runs fine with this folder exempt. When it's included it fails.
Thanks.
Joe Register
System Integration/Engineering
JRegister AT CitiStreetonline DOT com
(904) 791-2120
***********************************************
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<DIV><SPAN class=273025416-27032003><FONT face=Arial color=#0000ff size=2>Poor
choice...well, to get a "little" technical: all backup choices are poor choices
for backing up millions of files in one directory. The OS is the
bottleneck. It'll be even worse restoring it.</FONT></SPAN></DIV>
<DIV><SPAN class=273025416-27032003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=273025416-27032003><FONT face=Arial color=#0000ff
size=2>Options:</FONT></SPAN></DIV>
<DIV><SPAN class=273025416-27032003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=273025416-27032003><FONT face=Arial color=#0000ff size=2>(1)
Try using wildcards to break the directory up into lots of streams. It's
in the SAG.</FONT></SPAN></DIV>
<DIV><SPAN class=273025416-27032003></SPAN><SPAN
class=273025416-27032003></SPAN><SPAN class=273025416-27032003><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=273025416-27032003><FONT face=Arial color=#0000ff size=2>(2)
Raw volume backups don't work very well on NT because the filesystem has to be
completely quiesced and NT doesn't do that very well, but if you have
enterprise
storage and can snapshot, that's another option.</FONT></SPAN></DIV>
<DIV><SPAN class=273025416-27032003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=273025416-27032003><FONT face=Arial color=#0000ff size=2>(3)
Wait for Flash Backup to be available on NT (I think it's only on Solaris and
HP-UX, but should be on NT in a quarter or two).</FONT></SPAN></DIV>
<DIV><SPAN class=273025416-27032003></SPAN><SPAN class=273025416-27032003><FONT
face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Sandler, Mike
[mailto:MSandler AT destinyhealth DOT com] <BR><B>Sent:</B> Thursday, March
27, 2003
7:18 AM<BR><B>To:</B> 'Register, Joe';
'Veritas-bu AT mailman.eng.auburn DOT edu'<BR><B>Subject:</B> RE:
[Veritas-bu] NT
2000 backup of 1 million files one directory<BR><BR></FONT></DIV>
<DIV><SPAN class=656051715-27032003><FONT face=Arial color=#0000ff
size=2>Sorry I can't get too technical here but;</FONT></SPAN></DIV>
<DIV><SPAN class=656051715-27032003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=656051715-27032003><FONT face=Arial color=#0000ff
size=2>Veritas is a poor choice for this type of backup requirement.
This is because it first creates the index's for all the files before
actually
beginning the copy to tape. The result is an extremely long duration
for
the backup (chances are the window of opportunity is too short to run this
job
which can take easily take 8 or more hours. We have stopped using
Veritas because of this very problem. Veritas knows of this issue and
there is no current work around.</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> Register, Joe
[mailto:jregister AT citistreetonline DOT com]<BR><B>Sent:</B> Thursday,
March 27,
2003 9:54 AM<BR><B>To:</B>
'Veritas-bu AT mailman.eng.auburn DOT edu'<BR><B>Subject:</B> [Veritas-bu]
NT 2000
backup of 1 million files one directory<BR><BR></FONT></DIV>
<P><FONT size=2>Can anyone give advise of backing up a 2000 directory with
over 1 million files in it. We have a program (a well written one, you can
tell) that creates HTML files and all must go in one directory on a 2k
server. My master is a 2k 4.5 NBU DataCenter, the files are on a 2k 4.5 NBU
client. The backup runs fine with this folder exempt. When it's included it
fails. Thanks.</FONT></P>
<P><FONT size=2>Joe Register</FONT> <BR><FONT size=2>System
Integration/Engineering</FONT> <BR><FONT
size=2>JRegister AT CitiStreetonline DOT com</FONT> <BR><FONT size=2>(904)
791-2120</FONT> </P></BLOCKQUOTE><BR><BR>
<P><B><FONT face=Arial size=2>***********************************************
</FONT></B></P>
<P><B><FONT face=Arial size=2>Confidentiality Note: This E-mail is intended
only for the person or entity to which it is addressed and may contain
information that is privileged, confidential or otherwise protected from
disclosure. Dissemination, distribution or copying of this E-mail or the
information herein by anyone other than the intended recipient, or an
employee
or agent responsible for delivering the message to the intended recipient, is
prohibited. If you have received this E-mail in error, please call the Mgr.
of
Information Technology at 301.222.0330 and destroy the original message and
all copies. </FONT></B></P><BR><BR></BLOCKQUOTE></BODY></HTML>
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