Speed up rsync ,cwRsync and replay changes against a file
Reuben.Pearse at presence-systems.com
Wed Feb 25 10:11:17 GMT 2004
I recently installed and setup cwRsync on a Windows 2000 Server -
http://www.itefix.no/cwrsync/ -, and I was very impressed. I just
followed the instructions on the website and got it working.
I am using it to mirror 30Gb's of mailboxes everynight (only grabbing
the changes to each file), from a Windows 2000 box to a Linux box (RH9).
The nightly replication takes approximately 8 hrs to complete, but the
actual size of the mailbox directory only increases by about 120Mb a
day. There are 750 mailboxes and each mailbox is between 50 and 200Mb in
I am using the following command line options:
rsync -avz hostname::MailBoxes /mailboxreplica
Can anyone recommend ways to speed this up - is there some extra
compression I can use, or a kind of "quick checksum" option that I could
I was also wondering if there is a way to capture what rsync sees as the
changes to a file, and then replay them against a file at a later date,
as this would be useful as an incremental backup/restore option.
In general think rsync rocks and I am very impressed by it's reliability
reuben at presence-systems.com
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