From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <e29f8c89781c04f3ba474a56487b004c@quanstro.net>
To: 9fans@cse.psu.edu
From: erik quanstrom <quanstro@quanstro.net>
Date: Sun,  9 Sep 2007 12:03:15 -0400
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Subject: [9fans] kenfs (look ma, no disks)
Topicbox-Message-UUID: bc93be2a-ead2-11e9-9d60-3106f5b1d025

i've been working on kenfs as we needed a way to have
automatic offsite backup.  i am using aoe to do the offsite
bit so theoretically, one could have a kenfs with no disks.
i've also rewritten the marvell sata driver, added the intel
ahci driver, revamped mmu code.  finally, i have a slight
change to the on-disk layout of the c part of the cw that
results in a 20x speed improvement.  (this change can be
used on old fses if you dump and then recover using
the new code.)  i've also implemented a new compile-time
option "fastworm" that inhibits copying from the worm to
the cache.

my current testing setup is

	filsys main cp(a0)0.10{a1e99.0[e64.<0-3>]}

where

	dev	driver	target
	a?	ahci
	e99.0	aoe	sr421
	e64.?	aoe	pata shelf accessed over wireless link.

if you have any interest in this, please drop me a note
with the hardware you're using and i'll figure out how
to arrange access.

- erik