------ Original Message ------ From: "Kevin Korb" <k...@sanitarium.net> To: rsync@lists.samba.org Sent: 2/10/2014 10:57:08 AM Subject: Re: Rsync performance with large exchange database files
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 3.1.0 will probably help some. What are the specs of the FreeBSD system? I have found that ZFS on FreeBSD is extremely RAM hungry. In my experience 8GB of RAM is the minimum if dedup is disabled and 16BG of RAM for when dedup is enabled. Also, a cache disk helps a lot.
The FreeBSD system has 32GB of ram, dual Xeon E5620 cpus, the ZFS pool is a 6 disk (HGST 7.2K SATA 2TB drives) raidz2 array. There's no compression or deduplication enabled on the pool. There isn't any cache disks setup though.
I'm starting to do some read-performance tests on the windows machine to see if there's a problem there.
When watching the rsync processes I'm not always clear which end it's waiting on.
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