I have 3 hdd, with the next camcotrol
identify.
root@cirmos:/root # camcontrol identify ada1
pass2: <WDC WD10EZEX-00RKKA0 80.00A80> ATA-8 SATA 3.x device
pass2: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
protocol ATA/ATAPI-8 SATA 3.x
device model WDC WD10EZEX-00RKKA0
firmware revision 80.00A80
serial number WD-WMC1S4587539
WWN 50014ee003930f6e
cylinders 16383
heads 16
sectors/track 63
sector size logical 512, physical 4096, offset 0
LBA supported 268435455 sectors
LBA48 supported 1953525168 sectors
PIO supported PIO4
DMA supported WDMA2 UDMA6
Feature Support Enabled Value Vendor
read ahead yes yes
write cache yes yes
flush cache yes yes
overlap no
Tagged Command Queuing (TCQ) no no
Native Command Queuing (NCQ) yes 32 tags
SMART yes yes
microcode download yes yes
security yes no
power management yes yes
advanced power management no no
automatic acoustic management no no
media status notification no no
power-up in Standby yes no
write-read-verify no no
unload no no
free-fall no no
data set management (TRIM) no
root@cirmos:/root #
as can see above, the sector size is detected as:
sector size logical 512, physical 4096, offset 0
Here is already some topics on 4k drive tuning. I want create ZFS (raidz) from above 3 drives, and have the next questions:
- Are these drives
4k drives
? (asking because the physical sector size is 4k but logical is reported as 512b) - what is the recommended
gpart
for the above divers to getcorrect alignment
(Want create onefreebsd-zfs
partition) - Is here zpool tuning what i should consider? (the root, system and swap should be not in the above drives - these drives are only for "pure" file storage (and home directories).