From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <801d46846a08dbbcb038a6cfb7692f9e@quanstro.net> From: erik quanstrom Date: Sat, 5 Aug 2006 23:27:08 -0500 To: 9fans@cse.psu.edu Subject: Re: [9fans] Fs64 file server, partition boundaries out of range In-Reply-To: <7dd00e3a7067afeaad6074b0a0bc64ec@plan9.bell-labs.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: 97a6a786-ead1-11e9-9d60-3106f5b1d025 you're explination made perfect sense to me. where is the bitmap consulted? - erik On Sat Aug 5 18:22:14 CDT 2006, geoff@plan9.bell-labs.com wrote: > I didn't explain that as clearly as I could have: all blocks on the > disk underlying a fake worm can be read from the disk device, but only > already-written blocks can be read via the fake-worm device, and it's > the fake worm's allocation bitmap that determines which blocks have > been written. This in turn emulates the real worm hardware, which > only permits reading written blocks. >