Date: Thu, 30 Jan 2003 00:13:26 +0100 From: phk@freebsd.org To: "Matthew N. Dodd" <winter@jurai.net> Cc: David Gilbert <dgilbert@velocet.ca>, freebsd-hackers@freebsd.org Subject: Re: Network block device. Message-ID: <16443.1043882006@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 29 Jan 2003 18:06:20 EST." <20030129180043.S8642@sasami.jurai.net>
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In message <20030129180043.S8642@sasami.jurai.net>, "Matthew N. Dodd" writes: >On Wed, 29 Jan 2003, David Gilbert wrote: >> it doesn't work that way. the result of NBD is a /dev/nbd0 not a >> filesystem. Block 0 of /dev/nbd0 is block 0 of /dev/hda1 (say). nbd >> runs as a server on the node with the disk and as a client on the node >> using the disk. Yes, you still stripe on the client side... but you >> stripe across directly mapped block devices (no NFS involved). > >So involving NFS isn't really going to make that much of a difference. Yes, it sure would. NBD wouldn't be hard to implement on FreeBSD, the easiest way would be to write two GEOM modules to do it: a client and a server. No, I don't have time to do that right now, but I will happily guide anybody who wants to try. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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