raidz2 6x4TB read speed ?

Status
Not open for further replies.

ondjultomte

Contributor
Joined
Aug 10, 2015
Messages
117
I'm using 6 x 4 TB HGST NAS drives in raidz2, what readspeeds can you expect?

[root@freenas /mnt/tank]# dd if=testfile of=/dev/zero bs=1024 count=50000
50000+0 records in
50000+0 records out
51200000 bytes transferred in 0.489409 secs (104615982 bytes/sec)

I'm getting ~ 104 MBps which seems a bit low.
 

Fuganater

Patron
Joined
Sep 28, 2015
Messages
477
Just to give you a comparason, I have a 2x 8x2TB array.

[root@C3PO] /mnt/Vol1# dd if=/dev/zero of=testfile bs=1024 count=50000
50000+0 records in
50000+0 records out
51200000 bytes transferred in 0.212270 secs (241202218 bytes/sec)

[root@C3PO] /mnt/Vol1# dd if=testfile of=/dev/zero bs=1024 count=50000
50000+0 records in
50000+0 records out
51200000 bytes transferred in 0.479974 secs (106672438 bytes/sec)
 

ondjultomte

Contributor
Joined
Aug 10, 2015
Messages
117
Can we have more people post read speeds of raidz2 setups

Skickat från min HTC One via Tapatalk
 

Bidule0hm

Server Electronics Sorcerer
Joined
Aug 5, 2013
Messages
3,710
Please don't use /dev/zero as the output device, use /dev/null instead, thanks for this poor /dev/zero... :D ;)
 
Status
Not open for further replies.
Top