3TB disc and block alignment

Kurt Jaeger lists at c0mplx.org
Thu Feb 17 12:45:15 UTC 2011


Hi!

Edho P Arief wrote:

> > I have one of the new 3TB drives:
> >
> > da0: <Hitachi HUA723030ALA640 > Fixed Direct Access SCSI-5 device
> > da0: 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C)
> >
> > Now as far as I understand, one can operate it with many 512byte blocks
> > or one can try to use the internal 4kbyte blocks.

> ...I think it goes like this.
> 
> ZFS:
> >>>create GPT
> # gpart create -s gpt da0
> >>>add partition, start at 4k-aligned sector
> # gpart add -t freebsd-zfs -b 1024 da0

Thanks -- is it also possible to have something like

da0: 2861588MB (732566646 4096 byte sectors: 255H 63S/T 364801C)

appear during the boot ?

Has anyone ever tried ? Would FreeBSD support it ?

-- 
pi at opsec.eu            +49 171 3101372                         9 years to go !


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