AHCI/ATA_CAM for dummies?
Daniel Braniss
danny at cs.huji.ac.il
Mon Dec 14 07:49:22 UTC 2009
> b. f. wrote:
> > Hmm. From what little I know, your chipset should support AHCI, so
> > perhaps your motherboard or bios isn't set up right?:
> >
> > p. 39, 44 of the pdf at:
> >
> > http://www.intel.com/design/chipsets/datashts/307013.htm
>
> On page 44 it says, "for some features, hardware support in the SATA
> device ..."
>
> Full output of 'camcontrol identify':
>
> pass0: <Hitachi HTS721010G9SA00 MCZOC10H> ATA-7 SATA 1.x device
> pass0: 100.000MB/s transfers (UDMA5, PIO size 8192bytes)
>
> protocol ATA/ATAPI-7 SATA 1.x
> device model Hitachi HTS721010G9SA00
> firmware revision MCZOC10H
> serial number MPCZN7Y0GZSYAL
> cylinders 16383
> heads 16
> sectors/track 63
> sector size logical 512, physical 512, offset 0
> LBA supported 195371568 sectors
> LBA48 supported 195371568 sectors
> PIO supported PIO4
> DMA supported WDMA2 UDMA5
> overlap not supported
>
> Feature Support Enable Value Vendor
> read ahead yes yes
> write cache yes yes
> flush cache yes yes
> Native Command Queuing (NCQ) yes 31/0x1F
> Tagged Command Queuing (TCQ) no no 31/0x1F
> SMART yes yes
> microcode download yes yes
> security yes no
> power management yes yes
> advanced power management yes yes 16512/0x4080
> automatic acoustic management yes yes 254/0xFE 128/0x80
> media status notification no no
> power-up in Standby yes no
> write-read-verify no no 0/0x0
> unload no no
> free-fall no no
>
>
> Perhaps it does not have the requisite "hardware support" for ahci?
probably, but have you checked the BIOS setup?
my 5c.
danny
More information about the freebsd-current
mailing list