Re: JFS2 - good or bad?

cbaker_at_GOODYEAR.COM
Date: 07/13/04

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    Date:         Tue, 13 Jul 2004 14:44:22 -0400
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    You cannot do disk quotas on JFS2 filesystems.

    Christopher M. Baker
    Senior Technical Support Analyst
    DSE/TCO
    Goodyear Tire and Rubber Company

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                 "Green, Simon"
                 <Simon.Green@EU.ALTRIA.COM>
                 Sent by: IBM AIX Discussion List To
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                 07/12/04 09:58 AM Subject
                                                                   JFS2 - good or bad?

                             Please respond to
                          IBM AIX Discussion List
                           <aix-l@Princeton.EDU>

    I'm interested to know what people think of the new JFS2.
    I know that it increases the limits on file and filesystem size, but if one
    doesn't need this extra capacity are they worth using? I've seen vague
    claims of performance improvements: any truth in this?
    I'm not about to go changing my existing filesystems - far too much effort!
    - but I want to know whether to consider them for new installs, and for any
    new filesystems I create.
    I'd be particularly interested in any experience using them with Oracle
    tablespaces.

    I also have a couple of questions to which I couldn't find ready answers.
    Can a JFS2 and a JFS use the same log, or do you need a separate log for
    each type of filesystem?
    If you have an imbedded log in a JFS2, can you increase its size later, if
    necessary? 

    --
Simon Green
Altria ITSC Europe Ltd
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