Hello All,
I am experiencing a weird issue reading and writing to my zpool, it appears i can only get around 35% of my max disk performance in with my raid5 setup via ZFS.
Does anyone have any suggestions to fix this?
I am experiencing a weird issue reading and writing to my zpool, it appears i can only get around 35% of my max disk performance in with my raid5 setup via ZFS.
Code:
freenas# dd if="/mnt/vol1/large.mkv" of=/dev/null bs=10M 812+1 records in 812+1 records out 8519510546 bytes transferred in 96.639954 secs (88157229 bytes/sec) freenas# dd if=/dev/ada0 of=/dev/null bs=10M count=1000 1000+0 records in 1000+0 records out 10485760000 bytes transferred in 75.579703 secs (138737777 bytes/sec) freenas# dd if=/dev/ada1 of=/dev/null bs=10M count=1000 1000+0 records in 1000+0 records out 10485760000 bytes transferred in 75.201745 secs (139435062 bytes/sec) freenas# dd if=/dev/ada2 of=/dev/null bs=10M count=1000 1000+0 records in 1000+0 records out 10485760000 bytes transferred in 72.971260 secs (143697121 bytes/sec) freenas# dd if=/dev/ada3 of=/dev/null bs=10M count=1000 1000+0 records in 1000+0 records out 10485760000 bytes transferred in 90.113132 secs (116362175 bytes/sec) freenas# zpool status pool: vol1 state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM vol1 ONLINE 0 0 0 raidz1 ONLINE 0 0 0 gpt/ada0 ONLINE 0 0 0 gpt/ada1 ONLINE 0 0 0 gpt/ada2 ONLINE 0 0 0 gpt/ada3 ONLINE 0 0 0 errors: No known data errors freenas# dd if=/dev/zero of=test bs=100024 count=50000 50000+0 records in 50000+0 records out 5001200000 bytes transferred in 88.269919 secs (56658033 bytes/sec) freenas# dd if=test of=/dev/zero bs=100024 count=50000 50000+0 records in 50000+0 records out 5001200000 bytes transferred in 83.260203 secs (60067113 bytes/sec)
Does anyone have any suggestions to fix this?