Re: iSCSI : login keys & mode page settings

[Santosh Rao <santoshr@cup.hp.com>]

David,

Some clarification on the basis for classifying login keys as LO would
also be helpful. Should login keys that can disrupt I/O on their change
be allowed to be non-LO ?

Thanks,
Santosh

Black_David@emc.com wrote:
> 
> Without getting into the technical details of the
> discussion, I have a couple of observations:
> 
> (A) The issue of whether to allow mode page
>         access to and modification of iSCSI parameters
>         will need to be taken up at the interim
>         meeting.  IMHO, access seems like a good
>         idea, so that SCSI-generic code that doesn't
>         know specifically about iSCSI can find
>         what it expects where it expects it, but
>         I'm unsure about modification because it
>         may carry a risk of code that's iSCSI-unaware
>         getting something wrong.  The mode page
>         commands should be transparent to iSCSI.
> 
> (B) The mode page and text key mechanisms have
>         to access the same data.  Section 3 of the
>         -06 version says this, but needs some editing
>         to enforce it by using "MUST" or its equivalent
>         (cf. RFC 2119).  This is to prevent an
>         implementation from having two instances of
>         the same parameter - one for the mode page and
>         one for the text keys - which would be a bad
>         thing.
> 
> --David
> 
> ---------------------------------------------------
> David L. Black, Senior Technologist
> EMC Corporation, 42 South St., Hopkinton, MA  01748
> +1 (508) 435-1000 x75140     FAX: +1 (508) 497-8500
> black_david@emc.com       Mobile: +1 (978) 394-7754
> ---------------------------------------------------
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