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Max number of mounts for an LTO tape?Just thought I'd throw my 2 cents in on
this because I've never heard of any rule of thumb on the number of
mounts/usage
for tapes.
I've seen some other backup software that sets the default to 360. ie
Omniback
For Netbackup we set our production pool to 120 mounts (Business Critical
Data)
The development pool is set to 360 mounts (Non-Critical Businesss Data)
Also we have been on Veritas NBU for 1 1/2 years and have yet to exceed 50
uses per tape, and no tape failures, so it will be a while before we can
establish an SOP for this.
Mark
-----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 White, Steve
Sent: Wednesday, December 04, 2002 10:05 AM
To: 'Jonas Blåberg'; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Max number of mounts for an LTO tape?
We use 500 mounts and thus far don't seem to have an excessive amount of
tape failures.
-----Original Message-----
From: Jonas Blåberg [mailto:jonas.blaberg AT cellnetwork DOT com]
Sent: Wednesday, December 04, 2002 4:25 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Max number of mounts for an LTO tape?
Hello!
About how high should the max number of mounts be configured for LTO
tapes? Of course there is no rule saying tapes are destroyed after exactly X
mounts/unmounts, but I want to know someone else's opinion regarding this.
/jonas
Jonas Blåberg
Cell Network Sverige AB
Kruthusgatan 17,6
S-411 04 Göteborg
jonas.blaberg AT cellnetwork DOT com
office: +46-(0)31-739 84 54
mobile: +46-(0)709-95 00 68
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<HTML><HEAD><TITLE>Max number of mounts for an LTO tape?</TITLE>
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<DIV><SPAN class=3D930301301-05122002><FONT face=3DArial color=3D#0000ff =
size=3D2>Just=20
thought I'd throw my 2 cents in on this because I've never heard of any =
rule of=20
thumb on the number of mounts/usage</FONT></SPAN></DIV>
<DIV><SPAN class=3D930301301-05122002><FONT face=3DArial color=3D#0000ff =
size=3D2>for=20
tapes. </FONT></SPAN></DIV>
<DIV><SPAN class=3D930301301-05122002><FONT face=3DArial color=3D#0000ff =
size=3D2>I've=20
seen some other backup software that sets the default to 360. ie=20
Omniback</FONT></SPAN></DIV>
<DIV><SPAN class=3D930301301-05122002><FONT face=3DArial color=3D#0000ff =
size=3D2>For=20
Netbackup we set our production pool to 120 mounts (Business Critical=20
Data)</FONT></SPAN></DIV>
<DIV><SPAN class=3D930301301-05122002><FONT face=3DArial color=3D#0000ff =
size=3D2>The=20
development pool is set to 360 mounts (Non-Critical Businesss=20
Data)</FONT></SPAN></DIV>
<DIV><SPAN class=3D930301301-05122002><FONT face=3DArial color=3D#0000ff =
size=3D2>Also=20
we have been on Veritas NBU for 1 1/2 years and have yet to exceed 50 =
uses per=20
tape, and no tape failures, so it will be a while before we can =
establish an SOP=20
for this.</FONT></SPAN></DIV>
<DIV><SPAN class=3D930301301-05122002><FONT face=3DArial color=3D#0000ff =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D930301301-05122002><FONT face=3DArial color=3D#0000ff =
size=3D2>Mark</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
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>White,=20
Steve<BR><B>Sent:</B> Wednesday, December 04, 2002 10:05 =
AM<BR><B>To:</B>=20
'Jonas Bl=E5berg'; =
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> RE:=20
[Veritas-bu] Max number of mounts for an LTO =
tape?<BR><BR></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN =
class=3D592590215-04122002>We=20
use 500 mounts and thus far don't seem to have an excessive amount of =
tape=20
failures.</SPAN></FONT></DIV>
<BLOCKQUOTE>
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> Jonas Bl=E5berg=20
[mailto:jonas.blaberg AT cellnetwork DOT com]<BR><B>Sent:</B> Wednesday, =
December=20
04, 2002 4:25 AM<BR><B>To:</B>=20
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> [Veritas-bu] =
Max number=20
of mounts for an LTO tape?<BR><BR></FONT></DIV><!-- Converted from =
text/rtf format -->
<P><FONT face=3DArial size=3D2>Hello!</FONT> </P>
<P><FONT face=3DArial size=3D2>About how high should the max number =
of mounts be=20
configured for LTO tapes? Of course there is no rule saying tapes =
are=20
destroyed after exactly X mounts/unmounts, but I want to know =
someone else's=20
opinion regarding this.</FONT></P>
<P><FONT face=3DArial size=3D2>/jonas</FONT> </P><BR>
<P><FONT face=3DArial size=3D2>Jonas Bl=E5berg</FONT> <BR><FONT =
face=3DArial=20
size=3D2> Cell Network Sverige AB</FONT> <BR><FONT =
face=3DArial=20
size=3D2> Kruthusgatan 17,6</FONT> <BR><FONT face=3DArial =
size=3D2> =20
S-411 04 G=F6teborg</FONT> <BR><FONT face=3DArial=20
size=3D2>jonas.blaberg AT cellnetwork DOT com</FONT> <BR><FONT face=3DArial
=
size=3D2>office: +46-(0)31-739 84 54</FONT> <BR><FONT face=3DArial=20
size=3D2>mobile: +46-(0)709-95 00 68</FONT> </P><BR></BLOCKQUOTE>
=
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