On Mon, 13 Oct 2008, A Darren Dunham wrote:

> On Mon, Oct 13, 2008 at 06:37:21AM -0400, Justin Piszcz wrote:
>> Quick poll,
>>
>> While various errata state the cleaning tape usage count can be as high as
>> 50, others state 25.  Currently we use Sun Universal Cleaning tapes
>> (CLNUXXCU) where XX = a number.  How many times do other people use their
>> cleaning tapes?  25, 50 or some other number of times?
>
> Surely that depends on the media and the drive.  What media are you
> talking about?
>
> For instance, I know a lot of LTO media say "up to" because it depends
> on the drive as to how it's used.  I looked this up a while back and
> have forgotten the details.  But it was something like an LTO-1 would
> only use the tape 20 times, but LTO-3 would use the tape 50 times.  And
> if you used it in both, a linear approximation worked.

LTO-2, LTO-3 and LTO-4.

Also I've read / heard its best to let LTO-3 LTO-4 drives set the tape 
alert flag when they need cleaning vs. cleaning drives at intervals (which 
is recommended for sure with LTO-2) -- what have you observed?

Justin.

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