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From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@cse.psu.edu
Subject: [9fans] kenfs (look ma, no disks)
Date: Sun,  9 Sep 2007 12:03:15 -0400	[thread overview]
Message-ID: <e29f8c89781c04f3ba474a56487b004c@quanstro.net> (raw)

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



             reply	other threads:[~2007-09-09 16:03 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-09 16:03 erik quanstrom [this message]
2007-09-09 16:09 ` Uriel
2007-09-09 16:21   ` erik quanstrom

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