Date: Thu, 13 Feb 2003 05:47:25 +0100 From: Cliff Sarginson <cls@raggedclown.net> To: freebsd-questions@FreeBSD.ORG Subject: Re: Why is there no JFS? Message-ID: <20030213044725.GC632@raggedclown.net> In-Reply-To: <3E4B138F.26E32E75@mindspring.com> References: <3E4A863E.2030801@potentialtech.com> <3E4A8EF5.1070308@ant.uni-bremen.de> <3E4A9712.8030609@potentialtech.com> <3E4AA331.5040701@ant.uni-bremen.de> <3E4AA734.5040102@potentialtech.com> <045401c2d2db$f9d45c30$0a0aa8c0@dweebsoft.com> <20030212225631.GA10375@HAL9000.homeunix.com> <005801c2d2eb$aa5fae60$1200a8c0@gsicomp.on.ca> <3E4ADDDE.5040208@pantherdragon.org> <3E4B138F.26E32E75@mindspring.com>
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On Wed, Feb 12, 2003 at 07:40:00PM -0800, Terry Lambert wrote: > Darren Pilgrim wrote: > > Not really. A properly laid-out filesystem hierarchy will result in no > > writes to / (except for installworld/kernel). That removes the problem > > that journalling addresses, and is probably why softupdates is disabled > > by default for /. For large, active filesystems, journalling would be a > > big improvement when you had to run a foreground fsck. > From what I understand, since I use Linux as well, is that EXT3 is really a sort of journalling layer above EXT2, since you can mount EXT3 systems as EXT2 - just without the journalling. Since FreeBSD does have some support for EXT2 already, would it not be a possibility ..shortest road to Rome -- to extend EXT3 functionality into it ? But then I guess the Stallman factor comes into the equation. But I do agree it would be nice to have journalling available somehow. Rebooting an incorrectly shutdown (crashed) Linux FS using EXT3 or Reiser you miss the repairs going on if you blink. There is of course the operational consideration of speed of disk i/o. I have read conflicting reports on reiser as to whether it is significantly slower or faster than EXT2 -- seems to be dependent on number and size of files on the system. -- Regards Cliff Sarginson The Netherlands [ This mail has been checked as virus-free ] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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