* "John R. Jackson" <[EMAIL PROTECTED]>:
>
> I thought DDS-3 was 12 native and 24 compressed.

You're right.  I had my terminology mixed up.  By "12 compressed" I meant
*after* the compression had taken effect.  Anyway...

> You don't, by any chance, have both hardware and software compression
> turned on, do you?

How do I tell, exactly?  I have a dumptype line reading

        compress client fast

But that just seems like which CPU it uses to compute the compression
algorithm.

> Double compressing things often makes them expand,
> i.e. you don't even get the native capacity, and might explain what
> you're seeing.

That could explain a lot.  I inherited this system from a previous admin
who had a few gigabytes less data to back-up.  Now, after a few months have
passed, I'm the one stuck with the tapes filling up.  He very well could
have been using both compression types and not have known it.

> Which size specification?  If you mean the one from taper, it's very
> accurate (to the KByte).

Good.

> If you mean the one from the manufacturer, well, let's just say a lot
> of those folks won't ever have an employment problem as long as there
> are cars (or snake oil :-).

We all can't be engineers... :)

-- 
Drew

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