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Re: [BackupPC-users] BackupPC and DRBD - My experience so far
2009-09-17 22:23:33
> backup my hosts.
>
> If you have any questions, or feel there is anything I was not clear
> about, feel free to ask.
Thanks for your report. With that fiber link, it's no wonder you get
LAN-like results. What I'm curious about is if the IO requirements of
BackupPC would allow for an offsite replication over a typical WAN
link (say, 20-30ms round-trip).
the replication should be bandwidth intensive and not very IO intensive. For raw bandwidth, latency is much less of a concern as the next read/write doesnt depend on the last so long as the latency doesnt exceed the available caching options. rsync works like a champ in replication over high latency links, it just struggles with large numbers of files and gets greedy and wants large amounts of RAM.
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