Re: JFS2

From: Jan-Frode Myklebust (janfrode_at_PARALLAB.UIB.NO)
Date: 03/30/04

  • Next message: Bill Verzal: "Re: JFS2" 
    Date:         Tue, 30 Mar 2004 21:07:56 +0200
To: aix-l@Princeton.EDU

    On Tue, Mar 30, 2004 at 03:46:09PM -0300, Edson Noboru Yamada wrote:
    >
    > Is there any drawback in using JFS2 rather than JFS?
    >

    Yes.. drawbacks of JFS2:

            - doesn't support quotas (strange that it's not supported??)
            - doesn't support DMAPI (strange that it's not supported??)
            - doesn't support compression
            - has caused filesystem corruptions for me on 32-bit AIX (2
              years ago, so it's probably fixed now)
            - still seems to be problematic on 64 bit AIX 5.1, but it's
              probably because of a combination of big memory (64 GB) and
              a bit special workload (often going from lots of date in
              buffer cache, to nearly no data in buffer cache)...

    But I would still prefer JFS2 over JFS if it wasn't for this last
    point.. it is after all a more modern file system without the 64 Gbyte
    file size limit, without 1 TB file system limit, and with _a_lot_
    faster operation on directories with many files.

       -jf

  • Next message: Bill Verzal: "Re: JFS2"

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