>>>>> "Wipe" == Wipe Out <wipe_out at users.sourceforge.net> writes:
Wipe> If I had 10 bricks in a replicated volume would the the
Wipe> effective storage capacity be half the total storage
Wipe> capacity as is the case with RAID1?
It all depends on your setup: you can distribute, you can replicate,
or a mixture.
If you don't replicate, removing one brick will lead to
loss. Obviously if you still have the disk, you can bring up a
replicate of your lost brick with the original disks so you're back in
business.
Wipe> Next area I am not sure of.. Does GlusterFS only store
Wipe> complete files or chunks of files on bricks?
It can do both. If you replicate, it will store whole files. If you
stripe it won't. See the manual.
Wipe> If running a replicated volume and a brick is removed
Wipe> permanently, will the data that now is not replicated be
Wipe> automatically replicated to another brick?
Not sure about this one, it definitely will if you attach a
replacement.
But it's not dynamic as far as I understand it. You specify beforehand
how many bricks there are going to be, the system does not, or did
not, handle a specification like: I want at least 3 copies of a
file. It's more primitive, you specify I have 3 replicating bricks.
But read the docs, they are actually pretty good.
--
All the best,
Berend de Boer
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