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Re: eSATA drive won't mount. Wrong data rate ?



On Thu, 2008-10-02 at 16:45 -0500, Steve Siegfried wrote:
> Linuxguy123 wrote:
> <SNIP>
> > 
> > One thing that sticks out for me in all this is the SATA data rate.
> > Both the computer and the drive are supposed to be 3.0Gb/s devices.  Yet
> > the driver wants to connect at 1.5 Gbps.
> > 
> > The Serial ATA Controller is listed as ahci in hwbrowser.
> > 
> > # /sbin/lsmod | grep sat
> > sata_sil24             16069  0
> > libata                131937  3 ata_piix,sata_sil24,ahci
> > 
> > 
> > How should I proceed to get my external drive working ?
> > 
> 
> Check the manual that came with your motherboard (or the hardware manual
> that came with your computer).  3.0GB/s SATA is otherwise known as "SATA
> II", "SATA 3.0" and/or "SATA/300".  If it just sez "SATA", it's 1.5Gbs 
> "SATA-I" and you either need a controller card or a new motherboard to
> use the 3.0GB/s drives.  Sadly some SATA-II drives don't automagically
> downshift to SATA-I mode nicely... you may have one of these.

The shiny HP advertising brochure says "eSATA Port.  Blazing next
generation 3Gb/sec data transfer to an external HDD."

So unless the marketing department got it wrong and the engineers never
read the brochures, its probably a 3Gb/sec port.  I think that Linux
somehow gets the speed wrong.

Is it time to report this as a bug ?

LG



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