sandstheman
Dabbler
- Joined
- Jun 16, 2011
- Messages
- 13
Been having a mooch around the logs, and had a look at my messages log in /var/log
as some background, i'm running 5x2TB WD20EARS on an Asrock 939A790GMH motherboard with Opteron 146 and 3GB Ram
I noticed that when my disks are detected it recognises 4 of my disks as being able to support 300MB/s transfer and NCQ however my fifth disk which is identical to the other 4 is being detected as only being able to support 150MB/s and no NCQ. Anyone know of why this might be? Is it a detection issue with Freenas and can it be forced to detect it correctly or could it possibly be my motherboard?
Also noticed that the drives are being aligned with 512 byte sectors instead of 4Kb, think i'll need to try 8 BETA2 with the 4Kb option to see if it improves performance...
as some background, i'm running 5x2TB WD20EARS on an Asrock 939A790GMH motherboard with Opteron 146 and 3GB Ram
I noticed that when my disks are detected it recognises 4 of my disks as being able to support 300MB/s transfer and NCQ however my fifth disk which is identical to the other 4 is being detected as only being able to support 150MB/s and no NCQ. Anyone know of why this might be? Is it a detection issue with Freenas and can it be forced to detect it correctly or could it possibly be my motherboard?
Code:
Jun 22 15:32:22 freenas kernel: ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
Jun 22 15:32:22 freenas kernel: ada0: <WDC WD20EARS-00MVWB0 51.0AB51> ATA-8da0 at umass-sim0 bus 0 scbus6 target 0 lun 0
Jun 22 15:32:22 freenas kernel: da0: <hp c485w 1.00> Removable Direct Access SCSI-2 device
Jun 22 15:32:22 freenas kernel: da0: 40.000MB/s transfers
Jun 22 15:32:22 freenas kernel: da0: 3819MB (7823296 512 byte sectors: 255H 63S/T 486C)
Jun 22 15:32:22 freenas kernel: SATA 2.x device
Jun 22 15:32:22 freenas kernel: ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
Jun 22 15:32:22 freenas kernel: ada0: Command Queueing enabled
Jun 22 15:32:22 freenas kernel: ada0: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)
Jun 22 15:32:22 freenas kernel: ada1 at ahcich1 bus 0 scbus1 target 0 lun 0
Jun 22 15:32:22 freenas kernel: ada1: <WDC WD20EARS-00MVWB0 51.0AB51> ATA-8 SATA 2.x device
Jun 22 15:32:22 freenas kernel: ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
Jun 22 15:32:22 freenas kernel: ada1: Command Queueing enabled
Jun 22 15:32:22 freenas kernel: ada1: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)
Jun 22 15:32:22 freenas kernel: ada2 at ahcich2 bus 0 scbus2 target 0 lun 0
Jun 22 15:32:22 freenas kernel: ada2: <WDC WD20EARS-00MVWB0 51.0AB51> ATA-8 SATA 2.x device
Jun 22 15:32:22 freenas kernel: ada2: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
Jun 22 15:32:22 freenas kernel: ada2: Command Queueing enabled
Jun 22 15:32:22 freenas kernel: ada2: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)
Jun 22 15:32:22 freenas kernel: ada3 at ahcich3 bus 0 scbus3 target 0 lun 0
Jun 22 15:32:22 freenas kernel: ada3: <WDC WD20EARS-00MVWB0 51.0AB51> ATA-8 SATA 2.x device
Jun 22 15:32:22 freenas kernel: ada3: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
Jun 22 15:32:22 freenas kernel: ada3: Command Queueing enabled
Jun 22 15:32:22 freenas kernel: ada3: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)
Jun 22 15:32:22 freenas kernel: ada4 at ata0 bus 0 scbus4 target 0 lun 0
Jun 22 15:32:22 freenas kernel: ada4: <WDC WD20EARS-00MVWB0 51.0AB51> ATA-8 SATA 2.x device
Jun 22 15:32:22 freenas kernel: ada4: 150.000MB/s transfers (SATA, UDMA6, PIO 8192bytes)
Jun 22 15:32:22 freenas kernel: ada4: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)
Jun 22 15:32:22 freenas kernel: GEOM: da0s1: geometry does not match label (16h,63s != 255h,63s).
Jun 22 15:32:22 freenas kernel: Trying to mount root from ufs:/dev/ufs/FreeNASs1a
Jun 22 15:32:22 freenas kernel: ZFS NOTICE: Prefetch is disabled by default on i386 -- to enable,
Jun 22 15:32:22 freenas kernel: add "vfs.zfs.prefetch_disable=0" to /boot/loader.conf.
Jun 22 15:32:22 freenas kernel: ZFS WARNING: Recommended minimum kmem_size is 512MB; expect unstable behavior.
Jun 22 15:32:22 freenas kernel: Consider tuning vm.kmem_size and vm.kmem_size_max
Jun 22 15:32:22 freenas kernel: in /boot/loader.conf.
Jun 22 15:32:22 freenas kernel: ZFS filesystem version 4
Jun 22 15:32:22 freenas kernel: ZFS storage pool version 15
Jun 22 15:32:23 freenas root: /etc/rc: WARNING: failed precmd routine for vmware_guestd
Jun 22 15:32:26 freenas kernel: fuse4bsd: version 0.3.9-pre1, FUSE ABI 7.8
Jun 22 15:32:26 freenas ntpd[1362]: ntpd 4.2.4p5-a (1)
Also noticed that the drives are being aligned with 512 byte sectors instead of 4Kb, think i'll need to try 8 BETA2 with the 4Kb option to see if it improves performance...