[Veritas-bu] interesting behaviour with NDMP and NFS backups

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Discovered something in the lab that I found interesting...
if I back up a NAS via NDMP (level 0), then do a FULL backup of the same
unix style QTree, via NFS, a few hours later.
subsequent level 1 NDMP backups backup *almost* the entire QTree.
=20
It seems as if the NFS backup tweaks each file enough that the Level 1
NDMP dump sees it as new/modified.
=20
Not really interesting I suppose, in that it's pretty obvious that NBU
is touching files (try doing an NFS backup of a RO FS.).
=20
Just something I noticed and thought I'd throw out there for anyone who
happens to be doing both (for whatever reason) and theought there would
be no interdependancy.
=20
Paul

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<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial =
size=3D2>Discovered something=20
in the lab that I found interesting...</FONT></SPAN></DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial size=3D2>if I =
back up&nbsp;a=20
NAS via NDMP (level 0), then do a FULL backup of the same unix style =
QTree, via=20
NFS, a few hours later.</FONT></SPAN></DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial =
size=3D2>subsequent level 1=20
NDMP backups backup *almost* the entire QTree.</FONT></SPAN></DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial size=3D2>It =
seems as if the=20
NFS backup tweaks each file enough that the Level 1 NDMP dump sees it=20
as&nbsp;new/modified.</FONT></SPAN></DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial size=3D2>Not =
really=20
interesting I suppose, in that it's pretty obvious that NBU is touching =
files=20
(try doing an NFS backup of a RO FS.).</FONT></SPAN></DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial size=3D2>Just =
something I=20
noticed and thought I'd throw out there for anyone who happens to be =
doing both=20
(for whatever reason) and theought there would be no=20
interdependancy.</FONT></SPAN></DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D969261413-14022006><FONT face=3DArial=20
size=3D2>Paul</FONT></SPAN></DIV></BODY></HTML>
=00
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