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> -----Original Message-----
> From: WEAVER, Simon [mailto:simon.weaver AT astrium.eads DOT net]=20

> It may or may not be a problem, but if 1 1/2 tapes are used=20
> for a policy
> with a 2 week retention and then a 2nd policy comes along and uses the
> remainder of that 1/2 tape with a retention of 2 months, that=20
> tape cannot be
> used until the image expires (at least that is how I see it).

Yes, however, Netbackup will not do that....one a tape is written with
an image with a 2 week retention, that tape will only be used for other
images with a 2 week retention, untill the tape is filled, and then
after 2 weeks, the entire tape will return to scratch.

There is an explicit option "mix retentions on media" that you can
enable, if you really have a justification, but I can't think of one.



>=20
> We have Policies that include Full and Incrementals. They are=20
> multiplexed
> onto several tapes, but Incrementals are set to only=20
> multiplex to one tape.

Hmmm....looking at my schedules, I'm trying to figure out how you limit
the number of tapes used on a per schedule basis, in a given policy.

> I would say your environment is a lot smaller compared to=20
> ours (not really
> sure of your setup), but again each Business is going to do things
> differently.

Yeah....for sure....you've got more than double the amount of data
backed up.
I guess the way you broke it down in your example, ie. a server, three
tapes...implied something smaller.
That could be an issue....but if you have 50 clients in a policy and you
do have cases where 2 policies use a pool, then you are taking advantage
of economy of scale...if you've got 13 policies, then you've got what?
About 10-12 pools? That doesn't sound so bad.

Paul

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La version fran=C3=A7aise suit le texte anglais.

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