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2016 May 24
0
Improving 30-40MB/sec Sequential Reads
...machine is an Avoton C2550, 32 MB ECC RAM, 7x2TB
HDDs in raidz2 config and using a pair of SSDs as cache devices for ZFS.
The motherboard has an onboard Intel Gigabit NIC and I've recently added a
Chelsio T320 10Gbe card as well.
I've benchmarked the local disk read speed and I get around 565MB/sec
reading a file that far-exceeds the NAS' RAM.
I've also used iperf to confirm the network interfaces aren't the
bottleneck. A single instance/thread of iperf pushes 921Mb/sec over the
1Gbe line and 5.07 Gb/sec over the 10Gbe.
There's not much else going on my NAS at the time I...