Re: iSCSI: Representing iSCSI devices on FC fabrics

[Thanu Skariah <tskariah@npd.hcltech.com>]

Hi,

    There is one document on T11 which deals with the
mapping required below (though not for all NAA types).

Check out   ftp://209.26.30.221/t11/pub/fc/fs/01-531v2.pdf


Thanks,
Thanu

"Elliott, Robert" wrote:

> Correction - the company_id is 24 bits, not 20 bits.
>
> EUI-64 = (MSB) { 24-bit company_id,
>                  40-bit vendor specified } (LSB)
>
> FC WWN = (MSB) { 4-bit NAA field,
>                  24-bit company_id,
>                  36-bit vendor specified } (LSB)
>          (for the IEEE Registered NAA type)
>
> > -----Original Message-----
> > From: Elliott, Robert
> > Sent: Friday, November 16, 2001 9:33 AM
> > To: ips@ece.cmu.edu
> > Subject: RE: iSCSI: Representing iSCSI devices on FC fabrics
> >
> >
> > Beware than a FC WWN is not the same as an EUI-64.  They're both based
> > on the IEEE OUI/company_id, but the FC WWN uses the 4 most significant
> > bits for a "Name Address Authority" field and has 4 fewer
> > bits available
> > in the vendor specified portion.
> >
> > EUI-64 = (MSB) { 20-bit company_id,
> >                  44-bit vendor specified } (LSB)
> >
> > FC WWN = (MSB) { 4-bit NAA field,
> >                  20-bit company_id,
> >                  40-bit vendor specified } (LSB)
> >          (for the IEEE Registered NAA type)
> >
> > ---
> > Rob Elliott, Compaq Server Storage
> > Robert.Elliott@compaq.com
>