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Theoretical question
2008-08-08 19:24:05
After 6 years of trusty service, we're upgrading the hardware for our
Amanda Server. The existing setup has an LTO Tape Changer and an
external 1TB raid array that serves as both holding disk for the Unix
clients that hook right into Amanda, and disk based backup for our
Windows machines. The Windows data then gets sucked up to tape via
Amanda from the local filesystem on the Amanda Server. Anyway... way
back when this was all originally setup, the primary FreeBSD jock in
charge partitioned the raid into 100GB slices because "the LTO tapes
only hold 100GB natively, and you can't backup a file system with dump
that's larger then the actual capacity of the tape."
So.. my questions are:
A) Was there any truth to his original statement?
B) Since the initial setup we've upgraded Amanda several times
(currently on 2.5.1p2) and we now have tape spanning going. Assuming
"A" is true, do we still need to partition our disk to 100GB slices?
or can we have 1 or 2 huge slices?
Thanks
-Steffan
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