This is a multi-part message in MIME format.
------=_NextPart_000_0073_01BFA572.6DA5CB20
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Toni:
If they have been written to by something other than Veritas NetBackup (tar,
arcserve, etc.), I would do the following:
/bin/mt -f /dev/rmt/0 weof 1
This will clobber the header on the tape so that Veritas NetBackup will
think that it is new.
Chuck Dufresne
Strategic Technologies
-----Original Message-----
From: veritas-bu-admin AT Eng.Auburn DOT EDU
[mailto:veritas-bu-admin AT Eng.Auburn DOT EDU]On Behalf Of Toni Blackwelder
Sent: Thursday, April 13, 2000 9:45 AM
To: 'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: [Veritas-bu] Re-use of used DLT4000 tapes?
Hello.
Does anyone know if it is worth it to re-use DLT IV tapes
that were previously used in a system with DLT4000 drives?
We have a new system with DLT7000 drives and I would
like to reuse the old tapes, if possible. If it is not worth
it, we can buy new ones. However, this can be expensive.
Both the old and the new systems use Netbackup.
I wasn't sure if there was some kind of header or something
written to the tape when used in the DLT4000 drives that
would make it inefficient to use in the DLT7000 drive. Time
is of the essense (of course) with us when doing a backup/restore
and if it will slow things down, we will just use new media.
Should we just import the old tapes into our robot and then
expire them before using? Should we "degauze" (sp?) them first?
Any opinions or previous experiences would be appreciated.
Toni Blackwelder
Unix Support
Nortel Networks
trblack AT nortelnetworks DOT com
------=_NextPart_000_0073_01BFA572.6DA5CB20
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Diso-8859-1">
<TITLE>Re-use of used DLT4000 tapes?</TITLE>
<META content=3D'"MSHTML 4.72.3110.7"' name=3DGENERATOR>
</HEAD>
<BODY>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3>Toni:</FONT></SPAN></DIV>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3></FONT></SPAN> </DIV>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3>If they have been written to by something other than Veritas =
NetBackup=20
(tar, arcserve, etc.), I would do the following:</FONT></SPAN></DIV>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3></FONT></SPAN> </DIV>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3> &nbs=
p;  =
; =20
/bin/mt -f /dev/rmt/0 weof 1</FONT></SPAN></DIV>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3></FONT></SPAN> </DIV>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3>This will clobber the header on the tape so that Veritas =
NetBackup will=20
think that it is new.</FONT></SPAN></DIV>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3></FONT></SPAN> </DIV>
<DIV> </DIV>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3>Chuck Dufresne</FONT></SPAN></DIV>
<DIV><SPAN class=3D590010022-13042000><FONT color=3D#0000ff =
face=3D"Times New Roman"=20
size=3D3></FONT></SPAN><SPAN class=3D590010022-13042000><FONT =
color=3D#0000ff=20
face=3D"Times New Roman" size=3D3>Strategic =
Technologies</FONT></SPAN></DIV>
<BLOCKQUOTE>
<DIV class=3DOutlookMessageHeader><FONT face=3D"Times New Roman"=20
size=3D2>-----Original Message-----<BR><B>From:</B>=20
veritas-bu-admin AT Eng.Auburn DOT EDU=20
[mailto:veritas-bu-admin AT Eng.Auburn DOT EDU]<B>On Behalf Of</B> Toni=20
Blackwelder<BR><B>Sent:</B> Thursday, April 13, 2000 9:45 =
AM<BR><B>To:</B>=20
'veritas-bu AT mailman.eng.auburn DOT edu'<BR><B>Subject:</B> [Veritas-bu] =
Re-use=20
of used DLT4000 tapes?<BR><BR></FONT></DIV>
<P><FONT face=3DArial size=3D2>Hello.</FONT> </P>
<P><FONT face=3DArial size=3D2>Does anyone know if it is worth it to =
re-use DLT=20
IV tapes</FONT> <BR><FONT face=3DArial size=3D2>that were previously =
used in a=20
system with DLT4000 drives?</FONT> <BR><FONT face=3DArial =
size=3D2>We have a new=20
system with DLT7000 drives and I would</FONT> <BR><FONT face=3DArial =
size=3D2>like to reuse the old tapes, if possible. If it is =
not=20
worth</FONT> <BR><FONT face=3DArial size=3D2>it, we can buy new =
ones. =20
However, this can be expensive.</FONT> <BR><FONT face=3DArial =
size=3D2>Both the=20
old and the new systems use Netbackup.</FONT> </P>
<P><FONT face=3DArial size=3D2>I wasn't sure if there was some kind =
of header or=20
something</FONT> <BR><FONT face=3DArial size=3D2>written to the tape =
when used=20
in the DLT4000 drives that</FONT> <BR><FONT face=3DArial =
size=3D2>would make it=20
inefficient to use in the DLT7000 drive. Time</FONT> <BR><FONT =
face=3DArial size=3D2>is of the essense (of course) with us when =
doing a=20
backup/restore</FONT> <BR><FONT face=3DArial size=3D2>and if it will =
slow things=20
down, we will just use new media.</FONT> </P>
<P><FONT face=3DArial size=3D2>Should we just import the old tapes =
into our=20
robot and then</FONT> <BR><FONT face=3DArial size=3D2>expire them =
before=20
using? Should we "degauze" (sp?) them first?</FONT> =
</P>
<P><FONT face=3DArial size=3D2>Any opinions or previous experiences =
would be=20
appreciated.</FONT> </P>
<P><FONT face=3DArial size=3D2>Toni Blackwelder</FONT> <BR><FONT =
face=3DArial=20
size=3D2>Unix Support</FONT> <BR><FONT face=3DArial size=3D2>Nortel=20
Networks</FONT> <BR><FONT face=3DArial=20
size=3D2>trblack AT nortelnetworks DOT com</FONT> =
</P></BLOCKQUOTE></BODY></HTML>
------=_NextPart_000_0073_01BFA572.6DA5CB20--
|
