what's your hard drive model ? maybe raid0 I guess ?

[perryflynn]

what's your hard drive model ? maybe raid0 I guess ?

[perryflynn]

Hi,

I am using ZFS with 4x 6TB WD Red Pro in my setup. They are configured as two mirror vdevs which build one volume. In "RAID-speech" this equals to RAID 10.

ZFS is configured with 16 GB of RAM Cache.

But also above the 16 GB the performance is quite nice:

# /root/iobench.sh --dir . --megabytes $((128*1024)) --sync
Target directory: .
Testfile size: 131072 x 1 Megabyte

1. Write benchmark without cache
137438953472 bytes (137 GB, 128 GiB) copied, 46,2839 s, 3,0 GB/s

2. Write benchmark with cache
137438953472 bytes (137 GB, 128 GiB) copied, 45,1767 s, 3,0 GB/s

3. Read benchmark with droped cache
137438953472 bytes (137 GB, 128 GiB) copied, 14,6879 s, 9,4 GB/s

4. Read benchmark without cache drop

Start 1 of 5...
137438953472 bytes (137 GB, 128 GiB) copied, 12,2445 s, 11,2 GB/s

Start 2 of 5...
137438953472 bytes (137 GB, 128 GiB) copied, 12,2301 s, 11,2 GB/s

Start 3 of 5...
137438953472 bytes (137 GB, 128 GiB) copied, 12,052 s, 11,4 GB/s

Start 4 of 5...
137438953472 bytes (137 GB, 128 GiB) copied, 12,0616 s, 11,4 GB/s

Start 5 of 5...
137438953472 bytes (137 GB, 128 GiB) copied, 12,0545 s, 11,4 GB/s

Done.

[changchichung]

thanks ! , that's really awesome benchmark score !