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Long-short syndrome in first message.
On Monday, 10 December 2001 at 14:01:53 -0800, Hiten Pandya wrote:
> hi all,
> this is a wild idea...suggestion...
> i wanted to ask if there were any _plans_ to port
> JFS (Journaled File System) to FreeBSD...
> as for JFS, it is developed by IBM for Linux and is licensed under
> GPL, so we could put this into src/gnu/
Well, JFS was developed by IBM for AIX. If you look at the header
files, it is clearly derived from UFS. They later developed a
completely new file system, JFS2, for OS/2, and later ported this
version to Linux. It's also available for AIX, but the standard AIX
file system is still the old JFS1.
> It is used on IBM MainFrames and Enterprise servers for high
> performance and maximum throughput...
I don't think the zSeries (System/390) runs JFS. As I said above, the
RS/6000 uses a different JFS file system.
On Monday, 10 December 2001 at 17:39:35 -0500, Matthew Emmerton wrote:
>> * Hiten Pandya <[EMAIL PROTECTED]> [011210 16:02] wrote:
>>> hi all,
>>> this is a wild idea...suggestion...
>>> i wanted to ask if there were any _plans_ to port
>>> JFS (Journaled File System) to FreeBSD...
>>> as for JFS, it is developed by IBM for Linux and
>>> is licensed under GPL, so we could put this into
>>> It is used on IBM MainFrames and Enterprise servers
>>> high performance and maximum throughput...
>> I'm glad you took the time to read the marketting literature.
>> The problem is that porting it is going to be a bit more complicated
>> than just dumping it into src/gnu.
>> Feel free to take a shot at porting it though, let us know
>> when you're done.
> I'm gainfully employed by IBM (although not for FreeBSD pursuits),
> and have had this on my TODO list for a while.
Well, I'm gainfully employed by IBM, both for FreeBSD and JFS. I've
thought (and spoken) about this from time to time. It would be a lot
> The licence issue is a real sticky point, especially since the GPL
> and BSD licences are like oil and water. Because of the GPL
> licence, JFS support can never become part of the GENERIC kernel,
> and any related support tools will have to exist as separate
> binaries (newfs.jfs, fsck.jfs), as is currently done with the EXT2FS
As others have pointed out, this is a detail. The real question is:
will JFS2 buy anything? The only real way to find out is to try it.
On Monday, 10 December 2001 at 17:47:11 -0500, Anthony Schneider wrote:
> I'm no expert on journaled filesystems, but isn't the freebsd softupdates
> option similar?
No, at least not from a technical standpoint. From a user standpoint,
they both try to make things faster and more reliable, but they do it
in very different ways.
> perhaps there could be an upgrade to offer
> options SOFTERUPDATES
> as an equal-but-different alternative to jfs?
And what would that do?
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