Veritas-bu

[Veritas-bu] LTO-1 and cleaning tapes

2005-05-03 12:03:47
Subject: [Veritas-bu] LTO-1 and cleaning tapes
From: M.W.Ellwood AT rl.ac DOT uk (Ellwood, MW (Mike))
Date: Tue, 3 May 2005 17:03:47 +0100
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> Environment: Solaris 5.8  Netbackup 3.4GA
>=20
> I have a Sun-branded 20-slot library with two LTO-1 drives attached.
>=20
> What is the approach that people take regarding the use of cleaning =
tapes on systems like this?
>=20
> I have two issues I would say:
>=20
> 1) Restricting the use of a given cleaning tape to a given drive (to =
try to avoid unnecessary contamination)
>=20
> 2) How long to use the cleaning tapes?
>=20
>=20
> On question 1) I have 2 cleaning tapes in the robot, and I put one of =
them in one of slots 1-10
> and the other in slots 11-20, but I can't guarantee which one of them =
will be used for a given drive
> and have not been able to come up with a method.
>=20
> (but maybe it's not that important?).
>=20
> On question 2) the information that comes with the cleaning tapes =
seems to suggest a limit of 15 uses, but IIRC, the wording is not =
absolute. Netbackup allows one to reset the usage counts on cleaning =
tapes, implying that this is meant to be somewhat flexible.
>=20
> What approaches do other people take?
>=20
> Thank you.
>=20
> Mike Ellwood
>=20
p.s. sorry if it is not strictly a Netbackup question, but other =
Netbackup admins are likely to be dealing with this issue from time to =
time, I presume.

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<P><FONT SIZE=3D2 FACE=3D"Arial">Environment: Solaris 5.8&nbsp; =
Netbackup 3.4GA</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">I have a Sun-branded 20-slot library =
with two LTO-1 drives attached.</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">What is the approach that people take =
regarding the use of cleaning tapes on systems like this?</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">I have two issues I would say:</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">1) Restricting the use of a given =
cleaning tape to a given drive (to try to avoid unnecessary =
contamination)</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">2) How long to use the cleaning =
tapes?</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">On question 1) I have 2 cleaning tapes =
in the robot, and I put one of them in one of slots 1-10</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">and the other in slots 11-20, but I =
can't guarantee which one of them will be used for a given drive</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">and have not been able to come up with =
a method.</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">(but maybe it's not that =
important?).</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">On question 2) the information that =
comes with the cleaning tapes seems to suggest a limit of 15 uses, but =
IIRC, the wording is not absolute. Netbackup allows one to reset the =
usage counts on cleaning tapes, implying that this is meant to be =
somewhat flexible.</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Arial">What approaches do other people =
take?</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Thank you.</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Mike Ellwood</FONT>
</P>

<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">p.s. sorry if it is =
not strictly a Netbackup question, but other Netbackup admins are likely =
to be dealing with this issue from time to time, I presume.</FONT></P>

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