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List: toasters
Subject: RE: VSCAN and Backsups
From: "Martin Hughes" <mhughes () lgc ! com>
Date: 2004-07-27 12:43:17
Message-ID: 0323D40F66C2A34886DDE6AFCE16D911439403 () HOUEXCH901 ! landmark ! lgc ! com
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We have our backups set to run over CIFS shares that have the vscan
disabled. We can backup at faster speed and the filer is still
protected. We found it easiest to duplicate all of our root shares in
this manner.
cifs shares -add <sharename> <path> -novscan or -novscanread
________________________________
From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com]
On Behalf Of Mike Sphar
Sent: Monday, July 26, 2004 11:54 PM
To: ''toasters@mathworks.com' '
Subject: RE: VSCAN and Backsups
I may stand corrected, but I don't believe the part below is true. I
don't believe the real-time settings on the Trend server have any
bearing on which files are scanned. From what I see, it appears to me
that the Netapp decides whether a file should be scanned or not, and
then sends a specific manual "Please scan this file" request to the
Trend server.
The Netapp is supposed to "cache" which files have been scanned and
verified as clean, I believe, so static files shouldn't be slowing down
the backup process once they've been scanned the first time, no?
--
Mike Sphar - Sr Systems Administrator - Remedy, a BMC Software Company
-----Original Message-----
From: Hill, Aaron [mailto:aaron.hill@cba.com.au]
Sent: Monday, July 26, 2004 6:30 PM
To: 'SKIP HOFMANN'; ''toasters@mathworks.com' '
Subject: RE: VSCAN and Backsups
I think you said you were using trendmicro as the scanning server. If
you are try setting your realtime scan to "incoming" only. I think this
should improve your backup speed somewhat as the backup file read
requests will no longer require a VSCAN before the file is handed over
to the backup client. The problem here is that you need to be sure that
all of the content currently on your filer is virus free. Because from
now on, only incoming files will be scanned. Its not ideal. Would be
nice if you could exclude your backup client from virus scans during
file open requests. I don't know of trendmicro offering this.
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<DIV dir=ltr align=left><SPAN class=091224012-27072004><FONT
face="Lucida Sans Unicode" size=2>We have our backups set to run over CIFS
shares that have the vscan disabled. We can backup at faster speed and the filer
is still protected. We found it easiest to duplicate all of our root shares in
this manner.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=091224012-27072004><FONT
face="Lucida Sans Unicode" size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=091224012-27072004><FONT
face="Lucida Sans Unicode" size=2>cifs shares -add <sharename>
<path> -novscan or -novscanread</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=091224012-27072004><FONT
face="Lucida Sans Unicode" size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=091224012-27072004><FONT
face="Lucida Sans Unicode" size=2></FONT></SPAN> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> owner-toasters@mathworks.com
[mailto:owner-toasters@mathworks.com] <B>On Behalf Of </B>Mike
Sphar<BR><B>Sent:</B> Monday, July 26, 2004 11:54 PM<BR><B>To:</B>
''toasters@mathworks.com' '<BR><B>Subject:</B> RE: VSCAN and
Backsups<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN class=EmailStyle20><FONT face=Arial color=#993366
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt">I may
stand corrected, but I don’t believe the part below is true.<SPAN
style="mso-spacerun: yes"> </SPAN>I don’t believe the real-time settings
on the Trend server have any bearing on which files are scanned.<SPAN
style="mso-spacerun: yes"> </SPAN>From what I see, it appears to me that
the Netapp decides whether a file should be scanned or not, and then sends a
specific manual “Please scan this file” request to the Trend
server.<o:p></o:p></SPAN></FONT></SPAN></P>
<P class=MsoNormal><SPAN class=EmailStyle20><FONT face=Arial color=#993366
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><![if \
!supportEmptyParas]><![endif]> <o:p></o:p></SPAN></FONT></SPAN></P> <P \
class=MsoNormal><SPAN class=EmailStyle20><FONT face=Arial color=#993366 size=2><SPAN \
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt">The
Netapp is supposed to “cache” which files have been scanned and verified \
as clean, I believe, so static files shouldn’t be slowing down the backup \
process once they’ve been scanned the first time,
no?<o:p></o:p></SPAN></FONT></SPAN></P>
<P class=MsoNormal><SPAN class=EmailStyle20><FONT face=Arial color=#993366
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><![if \
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color=#993366><SPAN style="COLOR: #993366">-- </SPAN></FONT><FONT
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<P class=MsoAutoSig><FONT face="Times New Roman" color=#993366 size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: #993366">Mike Sphar - Sr Systems Administrator -
Remedy, a BMC Software Company</SPAN></FONT><FONT color=#993366><SPAN
style="COLOR: #993366; mso-color-alt: windowtext"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><!--[if supportFields]><span class=EmailStyle20><font
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class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Tahoma color=black \
size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: \
Tahoma">-----Original Message-----<BR><B><SPAN style="FONT-WEIGHT: \
bold">From:</SPAN></B> Hill, Aaron [mailto:aaron.hill@cba.com.au]<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Monday, July 26, 2004 6:30
PM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> 'SKIP HOFMANN';
''toasters@mathworks.com' '<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> RE: VSCAN and
Backsups</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
size=3><SPAN
style="FONT-SIZE: 12pt"><![if \
!supportEmptyParas]><![endif]> <o:p></o:p></SPAN></FONT></P> <P class=MsoNormal \
style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy size=2><SPAN \
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> I think you said you \
were using trendmicro as the scanning server. If you are try setting your realtime \
scan to "incoming" only. I <I><SPAN style="FONT-STYLE: italic">think </SPAN></I>this \
should improve your backup speed somewhat as the backup file read requests will no \
longer require a VSCAN before the file is handed over to the backup client. The \
problem here is that you need to be sure that all of the content currently on your \
filer is virus free. Because from now on, only incoming files will be scanned. Its \
not ideal. Would be nice if you could exclude your backup client from virus scans \
during file open requests. I don't know of trendmicro offering
this.<o:p></o:p></SPAN></FONT></P>
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style="COLOR: black; mso-color-alt: \
windowtext"><o:p></o:p></SPAN></FONT></P></DIV></BODY></HTML>
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