[Ukfreebsd] nice little storage server for 112GBP
daniel at kewlio.net
Wed Jan 12 11:59:36 GMT 2011
On 12/01/2011 09:54, Jonathan Belson wrote:
> Has anyone got any zfs RAIDZ benchmarks to share? I'm quite interested
> in getting one of these to replace my Dell PowerEdge SC440 (cost me
> 99GBP direct from Dell!) due to the reduced size/noise/power and extra
> drive bays, but I was concerned the slower CPU might affect performance.
> It would mainly get used as an SMB file store and IMAP server.
Using 4 x Hitachi 2TB SATA2 drives here, raidz1 (boot/root).
55326102 bytes/sec write
263562063 bytes/sec read
I use mine as a media streaming server (freebsd 8.2-prerelease, 1gb ram,
tuned zfs, samba 3.4)
Compiled a custom kernel, turn on device polling for the network (made a
big difference to cpu usage during high speed transfers from the
network), installed ZFS using my instructions on:
except I turned compression off (less cpu usage then) and did everything
as single partition.
Even when doing a 'zpool scrub', still over 30% cpu available.
Took 6 hours to do a zpool scrub on 5TB of data.
What I was impressed with was the hard drive temperatures remained
steady at 35C - usually during a scrub on servers, I see the disks
increase in temperature quite a bit.
I can playback full 1080p content over the network happily - very
pleased with the server overall - might get another!
From the network, FTP and Samba writes data at around 30MB/sec (give or
take.. 300mbps) - plenty enough for streaming and backups.
for info, my /boot/loader.conf:
my additions to kernel config:
and my ifconfig line in /etc/rc.conf has "polling" added to turn on
More information about the Ukfreebsd