RE: iscsi : default iscsi mode page settings - Consensus call

["Binford, Charles" <CBinford@pirus.com>]

I disagree that read only mode parameters goes against the semantics of mode
parameter definitions.  SCSI even has a special option to the mode sense
command to allow an initiator to determine if a parameter is read only or
read/write (changeable).  That said, I still do not see a compelling reason
to expose the login/text key value of firstBurstSize in the mode page.

Charles Binford
Pirus Networks
316.315.0382 x222


-----Original Message-----
From: Sanjeev Bhagat (TRIPACE/Zoetermeer)
[mailto:iscsi_t10@sanjeevbhagat.com]
Sent: Thursday, September 27, 2001 5:29 AM
To: Black_David@emc.com; Julian_Satran@il.ibm.com
Cc: ips@ece.cmu.edu
Subject: Re: iscsi : default iscsi mode page settings - Consensus call


I am in favour of putting FirstBurstSize and MaxBurstSize in login/text keys
but i object in removing it from SCSI mode Page. I am not sure if it is a
good idea to keep SCSI mode page parameters as read only because it also
goes against the semantics of mode parameter definitions. However it leads
to a lot of complexities if an initiator is allowed to change mode
parameters both by login keys as well as mode select command. I guess it is
still a debatable issue.

Sanjeev

----- Original Message -----
From: <Black_David@emc.com>
To: <Julian_Satran@il.ibm.com>
Cc: <ips@ece.cmu.edu>
Sent: Thursday, September 27, 2001 12:59 AM
Subject: iscsi : default iscsi mode page settings - Consensus call


> My reading of this mail thread is that there is rough consensus
> to negotiate/set FirstBurstSize and MaxBurstSize via iSCSI
> login/text keys and only via such keys.  If some aspect of the
> SCSI protocol requires that they be readable via a mode page,
> the mode page values will be read-only.  Julian's objection to
> this is noted - anyone else who objects to this should post to
> the list.
>
> Thanks,
> --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
> ---------------------------------------------------
>
>
>