I'm running 3 Samsung HD103SJ 1TB and 1 Samsung HD103UJ 1TB under Lubuntu with zfs raidz2, using a HP ProLiant N54L (AMD N54L, 4GB RAM).
Moving a 10 GB file between 2 folders on the pool takes 15 minutes! "Downloading" a 20 GB file from the pool to the local computer took 40 minutes.
Reading and writing is very slow but I have no idea why.
zpool list
NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
tank 3,62T 380G 3,25T 10% 1.00x ONLINE -
zpool status -v
pool: tank
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
sda ONLINE 0 0 0
sdb ONLINE 0 0 0
sdc ONLINE 0 0 0
sdd ONLINE 0 0 0
errors: No known data errors
zfs list
NAME USED AVAIL REFER MOUNTPOINT
tank 189G 1,59T 50,1K /tank
tank/filme 36,1G 1,59T 36,1G /tank/filme
tank/os 15,4G 1,59T 15,4G /tank/os
tank/spiele 58,5G 1,59T 58,5G /tank/spiele
tank/backups 79,5G 1,59T 4,77G /tank/backups
tank/backups/new 66,0G 1,59T 66,0G /tank/backups/new
tank/backups/old 8,73G 1,59T 8,73G /tank/backups/old
zpool list
andzpool status -v
andzfs list
.