Add FAQ describing difference between a local repo vs. repo on a server.

Taken from a Q/A on the mailing list.
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Thalian 2019-12-23 13:13:08 +01:00
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@ -8,6 +8,22 @@ Frequently asked questions
Usage & Limitations
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What is the difference between a repo on an external hard drive vs. repo on a server?
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If Borg is running in client/server mode, the client uses SSH as a transport to
talk to the remote agent, which is another Borg process (Borg is installed on
the server, too). The Borg server is doing storage-related low-level repo
operations (get, put, commit, check, compact), while the Borg client does the
high-level stuff: deduplication, encryption, compression, dealing with
archives, backups, restores, etc., which reduces the amount of data that goes
over the network.
When Borg is writing to a repo on a locally mounted remote file system, e.g.
SSHFS, the Borg client only can do file system operations and has no agent
running on the remote side, so *every* operation needs to go over the network,
which is slower.
Can I backup from multiple servers into a single repository?
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