Re: [BackupPC-users] Backup via rsyncd is very slow

also, you could be looking at rsync file number limitations. though there is no real hard number on file count that rsync can track, it needs a lot of ram when those numbers start getting up to a million+.

On Mon, Sep 21, 2009 at 9:20 AM, Michael Stowe <mstowe AT chicago.us.mensa DOT org> wrote:

FWIW, I've found that different builds of rsync/d and Cygwin differ
*dramatically* in their performance on Windows.

By dramatically, I mean after switching out my rsync binaries, a
representative full backup went from 220 minutes to 95, and a
representative incremental backup went from 200 minutes to 7. Yes, seven
minutes, and the only thing that changed was the rsync binary on the
Windows system.

> Hello Everyone,
>
> I am currently trying to backup a windows 2008 file server via rsyncd. I
> am having an issue with performance. The data on the server is around 1 TB
> which is all user files. I have been trying to run a full backup of the
> server for several days without success. The backup ran for over 72 hours
> and only backed up around 200 GB.
>
>
> * The server is on a on a gigabit lan with teamed NICs.
>
> * The data is being written to a SAN with 12 spindles.
>
> * I have already added another NIC and more memory to the file
> server.
>
> I have left the compression at 3 but I have plenty of processing power in
> both machines. Any ideas?
>
> David

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