From owner-freebsd-current Tue Jun 23 05:33:15 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id FAA03404 for freebsd-current-outgoing; Tue, 23 Jun 1998 05:33:15 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from spinner.netplex.com.au (spinner.netplex.com.au [202.12.86.3]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA03386; Tue, 23 Jun 1998 05:33:02 -0700 (PDT) (envelope-from peter@netplex.com.au) Received: from spinner.netplex.com.au (localhost [127.0.0.1]) by spinner.netplex.com.au (8.8.8/8.8.8/Spinner) with ESMTP id UAA06651; Tue, 23 Jun 1998 20:32:18 +0800 (WST) (envelope-from peter@spinner.netplex.com.au) Message-Id: <199806231232.UAA06651@spinner.netplex.com.au> X-Mailer: exmh version 2.0.2 2/24/98 To: Stephen Hocking-Senior Programmer PGS Tensor Perth cc: current@FreeBSD.ORG, fs@FreeBSD.ORG Subject: Re: Just how stackable is our FS code? In-reply-to: Your message of "Tue, 23 Jun 1998 16:38:17 +0800." <199806230838.QAA22217@ariadne.tensor.pgs.com> Date: Tue, 23 Jun 1998 20:32:17 +0800 From: Peter Wemm Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Stephen Hocking-Senior Programmer PGS Tensor Perth wrote: > > I was thinking of a file system that's layered over both local & NFS > filesystems, effectively doing similar volume management to vinum, but on a > distributed basis. This means a namespace that's unique within a group of > machines, with the ability to have a file spanning more than one > node/partition. How stackable? Depends who you ask. :-) Michael Hancock (sp?) has been doing some good stuff with cleaning up of the allocation and freeing of locks and resources, but there's more work to do still. You might find that the remaining warts will make life truely "interesting". There are a number of unresolved issues with the vnode locked/unlocked protocol as well as advisory file locking and directory cookies and readdir/lseek interaction etc. > Stephen Cheers, -Peter -- Peter Wemm Netplex Consulting To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message