Veritas-bu

[Veritas-bu] cross mount points? NFS?

2005-11-01 12:40:39
Subject: [Veritas-bu] cross mount points? NFS?
From: pkeating AT bank-banque-canada DOT ca (Paul Keating)
Date: Tue, 1 Nov 2005 12:40:39 -0500
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=20
Ok, so most of my unix clients have multiple local volumes.
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I backup "/" and check the "cross mount points" option.
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I do NOT check "follow NFS".
=20
in some testing, I've discovered that one client, with an NFS mount from
a NetApp filer, is backing up the NFS mounted volume.
=20
the only wierd thing I can see as the cause for this is that, it is
mounted on a symlink.
=20
ie.
=20
a dir exists called: /mnt/filer
a file exists called /filer, which is a symlink to /mnt/filer.
the volume is then mounted on /filer
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if you do a df on the client, you see the volume on /filer
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when browsing the backup, you see the symlink FILE called /filer, and
you see the contents of the NAS volume under /mnt/filer.
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Is mounting via the symlink tricking NBU into thinking the mount is NOT
an NFS filesystem?
=20
Paul

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<BODY>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>Ok, so =
most of my=20
unix clients have multiple local volumes.</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>I =
backup "/" and=20
check the "cross mount points" option.</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>I do =
NOT check=20
"follow NFS".</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>in =
some testing,=20
I've discovered that one client, with an NFS mount from a NetApp filer,=20
is&nbsp;backing up&nbsp;the NFS mounted volume.</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>the =
only wierd thing=20
I can see as the cause for this is that, it is mounted on a=20
symlink.</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2>ie.</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>a dir =
exists called:=20
</FONT></SPAN><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2>/mnt/filer</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>a file =
exists called=20
/filer, which is a symlink to /mnt/filer.</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>the =
volume is then=20
mounted on /filer</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>if you =
do a df on=20
the client, you see the volume on /filer</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>when =
browsing the=20
backup, you see the symlink FILE called /filer, and you see the contents =
of the=20
NAS volume under /mnt/filer.</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial size=3D2>Is =
mounting via the=20
symlink tricking NBU into thinking the mount is NOT&nbsp;an NFS=20
filesystem?</FONT></SPAN></DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D206543417-01112005><FONT face=3DArial=20
size=3D2>Paul</FONT></SPAN></DIV></BODY></HTML>
=00
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