RE: iSCSI: Use of the A bit

[Martins Krikis <mkrikis@yahoo.com>]

Just a quick note. Some people have implied that the
use of A-bit necessarily means poor performance.

I would like to disagree. If the target is just
sitting there waiting for acknowledgment to come
back before sending the next Data-In sequence, then
yes, that's poor performance. But I can imagine
targets that keep sending data while waiting for
the outstanding acknowledgments. Yes, it requires
more buffer space, but the acknowledgments are
actually helpful in managing that bigger buffer space.
It's a very similar situation to multiple outstanding
R2T-s. Hopefully everybody agrees that there may be
benefits to those. 

Or am I just missing something again?

  Martins Krikis, Intel Corp.

Disclaimer: These opinions are mine and may not
            reflect those of my employer.




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