the system shows different disk transfers

[Cathal]

Hello Everyone,

I checked my up-start log today after a rare reboot, and I found this odd log entry regarding my SATA speed transfer

All four disks are the same and linked to the same disk controller, but the system shows different transfers ?!? The first 2 disks are at 600MB/s (SATA3) and the last 2 disks are at 300MB/s SATA2.

Why? Anyone?

Jun 2 21:26:22 storage kernel: ada0: <WDC WD30EFRX-68EUZN0 80.00A80> ATA-9 SATA 3.x device
Jun 2 21:26:22 storage kernel: ada0: Serial Number WD-WMC4N1482746
Jun 2 21:26:22 storage kernel: ada0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
Jun 2 21:26:22 storage kernel: ada0: Command Queueing enabled
Jun 2 21:26:22 storage kernel: ada0: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C)
Jun 2 21:26:22 storage kernel: ada0: quirks=0x1<4K>
Jun 2 21:26:22 storage kernel: ada0: Previously was known as ad4
Jun 2 21:26:22 storage kernel: ada1 at ahcich1 bus 0 scbus1 target 0 lun 0
Jun 2 21:26:22 storage kernel: ada1: <WDC WD30EFRX-68EUZN0 80.00A80> ATA-9 SATA 3.x device
Jun 2 21:26:22 storage kernel: ada1: Serial Number WD-WMC4N1313930
Jun 2 21:26:22 storage kernel: ada1: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
Jun 2 21:26:22 storage kernel: ada1: Command Queueing enabled
Jun 2 21:26:22 storage kernel: ada1: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C)
Jun 2 21:26:22 storage kernel: ada1: quirks=0x1<4K>
Jun 2 21:26:22 storage kernel: ada1: Previously was known as ad6
Jun 2 21:26:22 storage kernel: ada2 at ahcich2 bus 0 scbus2 target 0 lun 0
Jun 2 21:26:22 storage kernel: ada2: <WDC WD30EFRX-68EUZN0 80.00A80> ATA-9 SATA 3.x device
Jun 2 21:26:22 storage kernel: ada2: Serial Number WD-WMC4N1014443
Jun 2 21:26:22 storage kernel: ada2: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
Jun 2 21:26:22 storage kernel: ada2: Command Queueing enabled
Jun 2 21:26:22 storage kernel: ada2: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C)
Jun 2 21:26:22 storage kernel: ada2: quirks=0x1<4K>
Jun 2 21:26:22 storage kernel: ada2: Previously was known as ad8
Jun 2 21:26:22 storage kernel: ada3 at ahcich3 bus 0 scbus3 target 0 lun 0
Jun 2 21:26:22 storage kernel: ada3: <WDC WD30EFRX-68EUZN0 80.00A80> ATA-9 SATA 3.x device
Jun 2 21:26:22 storage kernel: ada3: Serial Number WD-WMC4N1482655
Jun 2 21:26:22 storage kernel: ada3: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
Jun 2 21:26:22 storage kernel: ada3: Command Queueing enabled
Jun 2 21:26:22 storage kernel: ada3: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C)
Jun 2 21:26:22 storage kernel: ada3: quirks=0x1<4K>
Jun 2 21:26:22 storage kernel: ada3: Previously was known as ad10
Jun 2 21:26:22 storage kernel: SMP: AP CPU #1 Launched!

 

[joeschmuck]

I changed your posting from that awful lime green to black lettering. Please don't try to be fancy, it just turns some of us off.

I suspect your have at least two SATA controllers on your MB and you are using both of them. Typically this is indicated by two different colored SATA connectors on the MB where you will have two that stand out and those are the SATA3 and the rest are all SATA2. This is done so you can have a fast SATA3 boot drive and the rest are slow data drives. You didn't tell use what MB you have so I can't offer any more help at this point. Also if you could just port the entire message vice just a part, it should tell us hopefully the controllers running.

 

[Cathal]

I changed your posting from that awful lime green to black lettering. Please don't try to be fancy, it just turns some of us off.

Sorry, that is awful

I suspect your have at least two SATA controllers on your MB and you are using both of them. Typically this is indicated by two different colored SATA connectors on the MB where you will have two that stand out and those are the SATA3 and the rest are all SATA2. This is done so you can have a fast SATA3 boot drive and the rest are slow data drives. You didn't tell use what MB you have so I can't offer any more help at this point. Also if you could just port the entire message vice just a part, it should tell us hopefully the controllers running.

Specs;
Server: HP ProLiant MicroServer Gen8 G2020T
Controller: HP Dynamic Smart Array B120i
Disks: 4x3TB WD RED RAID Edition
But, I think I know why. I browsed thru the manual and found this:
NOTE: Two SATA ports will be running at 6Gb/s and reaming ports will be running at 3Gb/s.
(That sucks...)

 

[joeschmuck]

Yes, you probably have two different controller chips. That is fine because you will never max out a SATA II port using your FreeNAS network connection. You would need to start using 10Gb connections to get to that bottleneck.