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1) Correct.
2) No
=20
When an NDMP backup is initiated on a read/write volume WAFL takes a
snapshot for consistency and then dumps the contents of that snapshot.
To take a snapshot the volume must be read/write since it's writing
information to the volume (albeit the snapshot volume but it's all the
same really). If the volume is read only no snapshot can be taken.
However, you can use an existing snapshot to perform the dump just like
you use a newly created snapshot in a r/w volume. A snapshot is a
snapshot is a snapshot.
=20
If you point NBU to an existing snapshot WAFL knows the difference, so
it will just initiate a dump.
=20
~JK
=20
-----Original Message-----
From: Mark Kilpatrick [mailto:mark.kilpatrick AT ttt DOT ie]=20
Sent: Friday, December 06, 2002 3:00 AM
To: Kennedy, Jeffrey; veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] NDMP backup fails on SnapMirrored Volumes
=20
What is the correct way to configure the client to back up
/vol/common/.snapshot/nightly.0 . =20
1) Do I just enter this path in the file list of the client ? =20
2) Do I need to change anything else regarding my client configuration
or Policy type?
=20
I thought that whenever I ran a backup with policy/client type NDMP it
issued a Dump command on the filer which in turn caused a snapshot to
take place.=20
=20
But my aim is to first specify a path to the snapshot folder and
secondly for the Backup not to issue a snapshot command. Maybe I am
missing something - like the backup, by default, will not try to take a
snapshot of a snapshot?!
=20
=20
=20
=20
----- Original Message -----=20
From: Kennedy, Jeffrey <mailto:jkennedy AT qualcomm DOT com> =20
To: Mark Kilpatrick <mailto:mark.kilpatrick AT ttt DOT ie> ;
veritas-bu AT mailman.eng.auburn DOT edu=20
Sent: Thursday, December 05, 2002 9:14 PM
Subject: RE: [Veritas-bu] NDMP backup fails on SnapMirrored
Volumes
=20
I'm imagining that vol0 is not snapmirrored. :-]
=20
You have to back up a snapshot rather than the volume itself on
a snapmirrored volume. This is due to the fact that a snapmirrored
volume is read only and cannot therefore have a snapshot created against
it.
=20
You would need to backup something like the following:
=20
/vol/common/.snapshot/nightly.0
=20
This will work.
=20
~JK
=20
-----Original Message-----
From: Mark Kilpatrick [mailto:mark.kilpatrick AT ttt DOT ie]=20
Sent: Thursday, December 05, 2002 11:25 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] NDMP backup fails on SnapMirrored Volumes
=20
Hi, Can anyone backup Active SnapMirrored
destination volumes on a netapp filer? =20
=09
Configuration:
2 * NetApp F820 Filers with OnTap 6.1.3R2
W2000 SrvPk3 is Master server
NBU 4.5 MP2 on Master server
=09
SnapMirror is in use to snap two volumes from Filer 1to Filer 2
=09
Filer1
I can successfully backup all volumes on Filer1...
/vol/vol0/
/vol/common/
/vol/users/
=09
Filer2:
Two out of three of the volume backups fail on Filer2.
=09
The error is NDMP backup failure (99) - suggesting that the
file list is not vaild!
The two volumes which fail are snapmirrored (active).=20
/vol/vol0/ is successful as is any extension of the file path,
i.e /vol/vol0/home/ .
My configured file list is valid and identical to Filer1.
=09
=09
Thanks for any help received.
=09
Mark
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<style>
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<body bgcolor=3Dwhite lang=3DEN-US link=3Dblue vlink=3Dpurple>
<div class=3DSection1>
<p class=3DMsoNormal style=3D'margin-left:.5in;text-indent:-.25in'><font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>1)<font size=3D1 face=3D"Times New Roman"><span =
style=3D'font:7.0pt "Times New =
Roman"'>
</span></font></span></font><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Correct.</span></=
font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in;text-indent:-.25in'><font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>2)<font size=3D1 face=3D"Times New Roman"><span =
style=3D'font:7.0pt "Times New =
Roman"'>
</span></font></span></font><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>No</span></font><=
/p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>When an NDMP backup is initiated on =
a
read/write volume WAFL takes a snapshot for consistency and then dumps =
the
contents of that snapshot. To take a snapshot the volume must be
read/write since it’s writing information to the volume (albeit =
the
snapshot volume but it’s all the same really). If the volume =
is
read only no snapshot can be taken. However, you can use an =
existing
snapshot to perform the dump just like you use a newly created snapshot =
in a
r/w volume. A snapshot is a snapshot is a =
snapshot.</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>If you point NBU to an existing =
snapshot
WAFL knows the difference, so it will just initiate a =
dump.</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>~JK</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> Mark Kilpatrick
[mailto:mark.kilpatrick AT ttt DOT ie] <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, December =
06, 2002
3:00 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Kennedy, Jeffrey;
veritas-bu AT mailman.eng.auburn DOT edu<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Re: [Veritas-bu] =
NDMP
backup fails on SnapMirrored Volumes</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>What is the correct way to =
configure
the client to back up <font color=3Dnavy><span =
style=3D'color:navy'>/vol/common/.snapshot/nightly.0
. </span></font></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>1) Do I just =
enter this
path in the file list of the client </span></font><font =
color=3Dblack><span
style=3D'color:black'>? </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span style=3D'font-size:12.0pt;color:black'>2) =
Do I need
to change anything else regarding my client configuration or Policy =
type?</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>I thought that =
whenever I
ran a backup with policy/client type NDMP it issued a Dump =
command on the
filer which in turn caused a snapshot to take =
place. </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>But my aim is to =
first
specify a path to the snapshot folder and secondly for the Backup not to =
issue
a snapshot command. Maybe I am missing something - like the =
backup, by
default, will not try to take a snapshot of a =
snapshot?!</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'>----- Original Message ----- =
</span></font></p>
</div>
<blockquote style=3D'border:none;border-left:solid black =
1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'=
>
<div style=3D'font-color:black'>
<p class=3DMsoNormal =
style=3D'margin-left:.5in;background:#E4E4E4'><b><font size=3D2
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>From:</span=
></font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> <a
href=3D"mailto:jkennedy AT qualcomm DOT com" =
title=3D"jkennedy AT qualcomm DOT com">Kennedy, Jeffrey</a>
</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>To:</span><=
/font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> <a
href=3D"mailto:mark.kilpatrick AT ttt DOT ie" =
title=3D"mark.kilpatrick AT ttt DOT ie">Mark
Kilpatrick</a> ; <a href=3D"mailto:veritas-bu AT mailman.eng.auburn DOT edu"
title=3D"veritas-bu AT mailman.eng.auburn DOT edu">veritas-bu AT mailman DOT
eng.auburn=
.edu</a>
</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>Sent:</span=
></font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> Thursday,
December 05, 2002 9:14 PM</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>Subject:</s=
pan></font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> RE:
[Veritas-bu] NDMP backup fails on SnapMirrored Volumes</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>I’m =
imagining that
vol0 is not snapmirrored. :-]</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>You have to back =
up a
snapshot rather than the volume itself on a snapmirrored volume. =
This is
due to the fact that a snapmirrored volume is read only and cannot =
therefore
have a snapshot created against it.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>You would need =
to backup
something like the following:</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>/vol/common/.snap=
shot/nightly.0</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>This will =
work.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>~JK</span></font>=
</p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> Mark Kilpatrick
[mailto:mark.kilpatrick AT ttt DOT ie] <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Thursday, December =
05, 2002
11:25 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b>
veritas-bu AT mailman.eng.auburn DOT edu<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> [Veritas-bu] =
NDMP backup
fails on SnapMirrored Volumes</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Hi, Can anyone backup =
Active
SnapMirrored<br>
destination volumes on a netapp filer? <br>
<br>
Configuration:<br>
2 * NetApp F820 Filers with OnTap 6.1.3R2<br>
W2000 SrvPk3 is Master server<br>
NBU 4.5 MP2 on Master server<br>
<br>
SnapMirror is in use to snap two volumes from Filer 1to Filer 2<br>
<br>
Filer1<br>
I can successfully backup all volumes on Filer1...<br>
/vol/vol0/<br>
/vol/common/<br>
/vol/users/<br>
<br>
Filer2:<br>
Two out of three of the volume backups fail on Filer2.<br>
<br>
The error is NDMP backup failure (99) - suggesting that the file =
list is
not vaild!<br>
The two volumes which fail are snapmirrored (active). <br>
/vol/vol0/ is successful as is any extension of the file path, i.e
/vol/vol0/home/ .<br>
My configured file list is valid and identical to Filer1.<br>
<br>
<br>
Thanks for any help received.<br>
<br>
Mark</span></font></p>
</div>
</blockquote>
</div>
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