Slashdot Mirror

← Back to Stories (view on slashdot.org)

JFS May Make It Into 2.4

Posted by ryuzaki0 on from the is-like-the-diary-of-robinson-crusoe? dept.

Grimsaado writes: "LinuxWorld has an article on IBM's JFS and how it might be included in 2.4 as well as some technical fluff on it's phenominal cosmic power." Heck, with the number of journaling file systems, it's like being at a file system buffet at this point.

3 of 191 comments (clear)

  1. Reiserfs, journalling only part of the picture by Anonymous Coward · · Score: 5
    The ReiserFS really rocks, but journalling is only secondary. The ReiserFS is much more than a journalling filesystem. It is supposed to ultimately be some sort of object oriented user-configurable file system with personality plug-ins and all sorts of bells and whistles. Me, I'm only interested in the journalling aspects at present. It is rock solid now and I won't go back to ext2 anytime soon. The only thing I miss with ReiserFS is extended attributes like immutable and append-only. These are planned for a future release of ReiserFS, however.

    If Linus has a problem with ReiserFS, it is that he probably fears some of the exciting new ``disruptive'' concepts that Hans Reiser has planned. ReiserFS is truly innovative. For those interested in the innovations, there is a White Paper available. I'm sure that Hans Reiser's roadmap is what is scaring Linus. I'll be happy to see JFS make it into 2.4, but ResierFS deserves to be there too. I urge anyone with a slight interest to try out ReiserFS. I'm sure you'll agree then that it deserves a place at the table. I'm a late adaptor, and skeptical of new code (I used Xia FS for years after ext2 was available). If conservative old me can handle ReiserFS, anyone can.

  2. Re:Kernel Archives by shaggykl · · Score: 5
    I'm from IBM.

    As previously stated JFS is released under GPL.

    AIX's JFS contains licensed code from outside sources. Several years ago, JFS was redesigned from the ground up for OS/2 Warp Server. This version does not contain any encumbered code and was designed to be more scalable than AIX's version. This JFS first shipped last year with Warp Server for e-Business.

    Therefore, the Linux offering of JFS is not the same filesystem you'll find on AIX, and you won't be able to share a JFS file system between AIX and Linux. (You will be able to share one between Linux and Warp Server.)

  3. well, there's one FS I won't configure by jetson123 · · Score: 5
    I was using JFS under AIX for several years. I can't imagine why people would want to run it. It doesn't give you much more data security (only file system structure is journalled), and you pay a heavy price in terms of performance. In fact, running Linux and AIX side-by-side for several years, Linux with ext2 on a low-end IDE drive not only greatly out-performed AIX on a high-end workstation and SCSI drive, AIX even lost a file system during a crash.

    Fsck on ext2 is pretty fast, crashes are very rare for server systems, and servers require regular backups anyway. It is more rational to run integrity checks in batch mode when necessary than to pay overhead on every file system access to deal with the possibility that the machine might crash at any moment. I think JFS (and its companion, LVM) are simply not good engineering tradeoffs for most (all?) applications.