Hi all!
Gerhard den Hollander wrote:
> * Patrick M. Hausen <[EMAIL PROTECTED]> (Tue, Jan 23, 2001 at 09:11:36AM +0100)
>
> > What options do I have for higher capacity drives?
> > Amanda still requires the largest dump to fit on a single tape.
> > With filesystems routinely approaching a couple of hundreds of gigs
> > these days there seems to be a huge gap ...
>
> > I found IBM Ultrium technology. Has someone used these successfully?
> Yup.
>
> > OTOH they are 100 GB uncompressed - not a _real_ order of magnitude.
>
> No,
> amanda with compressuion should get you to 200G depending on the type of
> data)
I just compared uncompressed capacity. Tandberg's SLR100 gives 50 GB
uncompressed, IBM's Ultrium 100 GB uncompressed.
Unfortunately our customer with the highes capacity needs stores
precompressed data of several GB per month and wants them all
available on disk. So we need to plan for full dumps of 100 GB
and maybe even more. That's why I'd prefer a tape solution that
gets 200 GB of data on a tape.
For the curious: webserver logfiles - they want at least one
year's worth of that available online for analysis ... marketing types ;-)
> Different backup software that allows dumps to span multiple tapes, in
> combination with stackers or taperobots.
That's what I figured ...
> Work on multitapebackup is (apparently) underway for Amanda NG
_This_ is good news indeed. So one possible solution would be
to go for a library instead of an autoloader, start with 1 tape
of 50 or 100 GB capacity now - and hope AmandaNG will be available
when we need it ;-))
We certainly would be willing to help with beta testing, but don't
have spare time for development.
2 more options I found on www.backupcentral.com:
"Quantum Super DLT 220N" with a quoted capacity of 220 GB (that's almost
certainly compressed, so it may have 110 GB uncompressed).
Unfortunately the link to Quantum's website doesn't reveal _any_
information on that product. Is it vaporware?
"Ampex DST 312" with a quoted capacity of 330 GB - anyone used
these? They're helical scan technology which makes me feel a
lot less comfortable than with Tandberg or IBM ...
Thanks,
Patrick
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