Veritas-bu

[Veritas-bu] Netbackup issues with NDMP restores

2006-02-01 22:49:51
Subject: [Veritas-bu] Netbackup issues with NDMP restores
From: Len.Boyle AT sas DOT com (Len Boyle)
Date: Wed, 1 Feb 2006 22:49:51 -0500
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Hello Sandeen
=20
The restores in general work. Unless you have a very old level of ontap =
and netbackup you should be able to restore down to single files =
quickly.=20
The magic is that there is something called DAR, this means that you can =
restore up to 1024 files quickly. If you restore a directory or more =
then 1024 files in a restore session the DAR feature does not work and =
the restore process has to pass over the whole backup to finish the =
restore. This can take a while if the backup was large.  See the ndmp =
netbackup book from support.veritas.com
=20
len

________________________________

From: veritas-bu-admin AT mailman.eng.auburn DOT edu =
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Bhangui, =
Sandeep - BLS CTR
Sent: Wednesday, February 01, 2006 8:57 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Netbackup issues with NDMP restores


Hi
                    We backup tons of data on the filer we have using =
Veritas Netbackup using NDMP. Our NDMP backups are for all volumes =
coming from the filer which are NFS mounted on UNIX hosts primarily used =
for oracle and weblogic.
=20
I have read lot of posts on the forum that "NDMP restore sucks" can =
someone please elaborate on this is what is the real issue/concern. Can =
we not restore a single file or directory if recovered and does the =
whole volume has to be restored back for this???=20
=20
We have not had a situation where we have to restore from tapes but =
after reading so many posts on the forum regarding "NDMP restores" I am  =
little concerned. And all reviopus posts on this seem to say that the =
NDMP restore sucks and follks recommend to do NFS mount backups from the =
server for easy restore.
=20
Can someone throw some light on this.
=20
Thanks
Sandeep

=09


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<HTML><HEAD><TITLE>Message</TITLE>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">
<META content=3D"MSHTML 6.00.2900.2802" name=3DGENERATOR></HEAD>
<BODY>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D646404503-02022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Hello Sandeen</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D646404503-02022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D646404503-02022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>The restores in general work. Unless you have a =
very old=20
level of ontap and netbackup you should be able to restore down to =
single files=20
quickly. </FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D646404503-02022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>The magic is that there is something called =
DAR, this means=20
that you can restore up to 1024 files quickly. If you restore a =
directory or=20
more then 1024 files in a restore session the DAR feature does not work =
and the=20
restore process has to pass over the whole backup to finish the restore. =
This=20
can take a while if the backup was large.&nbsp; See the ndmp netbackup =
book from=20
support.veritas.com</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D646404503-02022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D646404503-02022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>len</FONT></SPAN></DIV><BR>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT face=3DTahoma size=3D2><B>From:</B> =
veritas-bu-admin AT mailman.eng.auburn DOT edu=20
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] <B>On Behalf Of =
</B>Bhangui,=20
Sandeep - BLS CTR<BR><B>Sent:</B> Wednesday, February 01, 2006 8:57=20
PM<BR><B>To:</B> veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B>=20
[Veritas-bu] Netbackup issues with NDMP restores<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D737084801-02022006>Hi</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D737084801-02022006>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
We backup tons of data on the filer we have using Veritas Netbackup =
using NDMP.=20
Our NDMP backups are for all volumes coming from the filer&nbsp;which =
are NFS=20
mounted on UNIX hosts primarily used for oracle and=20
weblogic.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D737084801-02022006></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN =
class=3D737084801-02022006>I have=20
read lot of posts on the forum that "NDMP restore sucks" can someone =
please=20
elaborate on this is what is the real issue/concern. Can we not restore =
a single=20
file or directory if recovered and does the whole volume has to be =
restored back=20
for this??? </SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D737084801-02022006></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN =
class=3D737084801-02022006>We=20
have not had a situation where we have to restore from tapes but after =
reading=20
so many posts on the forum regarding "NDMP restores" I am&nbsp; little=20
concerned. And all reviopus posts on this seem to say that the NDMP =
restore=20
sucks and follks recommend to do NFS mount backups from the server for =
easy=20
restore.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D737084801-02022006></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN =
class=3D737084801-02022006>Can=20
someone throw some light on this.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D737084801-02022006></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D737084801-02022006>Thanks</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D737084801-02022006>Sandeep</SPAN></FONT></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
  <DIV><FONT face=3DTahoma =
size=3D2></FONT></DIV></BLOCKQUOTE></BODY></HTML>

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