Re: What still uses the block layer?

[Jeff Garzik]

Alan Cox wrote:
> > You can pull a Model and Serial number via hdparm -i, but it's not as
> > easy to manipulate as a fixed-length MAC address.  That's why people
> > tend to use filesystem UUID's.   
>
> ATA8 at the moment looks set to add a true "MAC" or "WWN" type identifier
> to each device.. Right now model/serial is not always unique.

WWN was added in ATA-7, AFAICS.

However, I've seen quite a few ATA-7 devices that do not bother to fill 
it in.  I wonder if ATA-8 device firmwares will act with similar 
slackness.  :)

	Jeff



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/