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http://www.fujifilm.com/JSP/fuji/epartners/bin/LTO_DATA_SHEET_6-1-05.pdf
=20
Avg 1,000,000 head passes.
=20
I read another spec somewhere that indicated 25,000 mounts.
=20
(it was at
<http://www.fujifilm.com/JSP/fuji/epartners/tds/pdf/LTO_Ultrium_Drive_Da
ta_QA>
http://www.fujifilm.com/JSP/fuji/epartners/tds/pdf/LTO_Ultrium_Drive_Dat
a_QA
<http://www.fujifilm.com/JSP/fuji/epartners/tds/pdf/LTO_Ultrium_Drive_Da
ta_QA.pdf> .pdf but the link is dead now.)=20
=20
so 25,000 mount / 1,000,000 head passes.....
=20
I'd say you can get more than 12 writes out of em.
=20
Paul
-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Tristan
Ball
Sent: March 22, 2006 11:58 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Tape re-use and replacement
=09
=09
We're reviewing our backup policy documentation, in particular
we're trying to define how often we replace tapes.
=20
The tapes in question are LTO-3. Management wants to replace
them after 12 write passes, but that seems a little low to me?
=20
What are other shops doing?
=20
Thanks,
Tristan.
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<META content=3D"MSHTML 6.00.2800.1170" name=3DGENERATOR></HEAD>
<BODY>
<DIV><FONT face=3DArial color=3D#800000 size=3D2><A=20
href=3D"http://www.fujifilm.com/JSP/fuji/epartners/bin/LTO_DATA_SHEET_6-1=
-05.pdf">http://www.fujifilm.com/JSP/fuji/epartners/bin/LTO_DATA_SHEET_6-=
1-05.pdf</A></FONT></DIV>
<DIV><FONT face=3DArial color=3D#800000 size=3D2></FONT> </DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2>Avg=20
1,000,000 head passes.</FONT></SPAN></DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2>I read=20
another spec somewhere that indicated 25,000 mounts.</FONT></SPAN></DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2>(it=20
was at <A=20
href=3D"http://www.fujifilm.com/JSP/fuji/epartners/tds/pdf/LTO_Ultrium_Dr=
ive_Data_QA"><U><FONT=20
color=3D#0000ff size=3D2><A=20
href=3D"http://www.fujifilm.com/JSP/fuji/epartners/tds/pdf/LTO_Ultrium_Dr=
ive_Data_QA.pdf">http://www.fujifilm.com/JSP/fuji/epartners/tds/pdf/LTO_U=
ltrium_Drive_Data_QA</U></FONT></A>.pdf</A> but=20
the link is dead now.) </FONT></SPAN></DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2>so=20
25,000 mount / 1,000,000 head passes.....</FONT></SPAN></DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2>I'd=20
say you can get more than 12 writes out of em.</FONT></SPAN></DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D909075412-23032006><FONT face=3DArial color=3D#800000 =
size=3D2>Paul</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #800000 2px =
solid; MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft><FONT=20
face=3DTahoma size=3D2>-----Original Message-----<BR><B>From:</B>=20
veritas-bu-admin AT mailman.eng.auburn DOT edu=20
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] <B>On Behalf Of =
</B>Tristan=20
Ball<BR><B>Sent:</B> March 22, 2006 11:58 PM<BR><B>To:</B>=20
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> [Veritas-bu] Tape
=
re-use=20
and replacement<BR><BR></FONT></DIV>
<DIV><SPAN class=3D840243200-23032006><FONT face=3DArial =
size=3D2>We're reviewing=20
our backup policy documentation, in particular we're trying to define =
how=20
often we replace tapes.</FONT></SPAN></DIV>
<DIV><SPAN class=3D840243200-23032006><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D840243200-23032006><FONT face=3DArial size=3D2>The =
tapes in=20
question are LTO-3. Management wants to replace them after 12 write =
passes,=20
but that seems a little low to me?</FONT></SPAN></DIV>
<DIV><SPAN class=3D840243200-23032006><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D840243200-23032006><FONT face=3DArial size=3D2>What =
are other=20
shops doing?</FONT></SPAN></DIV>
<DIV><SPAN class=3D840243200-23032006><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D840243200-23032006><FONT face=3DArial=20
size=3D2>Thanks,</FONT></SPAN></DIV>
<DIV><SPAN class=3D840243200-23032006> <FONT =
face=3DArial=20
size=3D2>Tristan.</FONT></SPAN></DIV></BLOCKQUOTE></BODY></HTML>
=00
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