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  • 1.  How to verify DST 2007 readiness

    Posted Mon February 19, 2007 10:14 AM

    Originally posted by: SystemAdmin


    I am an aix newbie.

    I am concerned about the upcoming (2007.03.11) DST change.

    How can I verify readiness of our aix boxes?

    zdump apparently indicates that we are not ready.
    ksh> echo $TZ
    EST5EDT
    ksh> zdump -v $TZ | grep 2007
    ... April 1 ...
    ksh> zdump -v /usr/share/lib/zoneinfo/US/Eastern | grep 2007
    ... April 1 ...
    ksh> zdump -v /usr/share/lib/zoneinfo/EST5EDT | grep 2007
    ... April 1 ...

    instfix seems to indicate that IY75211 has already been applied.
    ksh> instfix -iak IY75211
    ... All filesets for IY75211 were found.

    My research indicated that zdump on aix "uses its own files" and is not affected by IY75211, but I was unable to understand the report, given my ignorance of the APAR mechanism, and apparently incorrect belief that zdump interprets the binary zoneinfo files it is explicitly given.

    What concept(s) am I missing?

    TIA,


  • 2.  Re: How to verify DST 2007 readiness

    Posted Mon February 19, 2007 10:51 AM

    Originally posted by: BruceSpencer


    The new DST affects more than just AIX. It also affects Java, applications and the HMC. Here are a few web sites to help.

    http://www-03.ibm.com/servers/eserver/support/unixservers/news/2006/10/DSTupdate.html

    http://www.ibm.com/support/alerts/us/en/daylightsavingstimealert.html
    http://www-1.ibm.com/support/docview.wss?rs=2200&context=SS8M5N&dc=D600&uid=swg21219396&loc=en_US&cs=UTF-8&lang=en


  • 3.  Re: How to verify DST 2007 readiness

    Posted Mon February 19, 2007 01:16 PM

    Originally posted by: SystemAdmin


    The problem remains of how to verify that installation of IY75211
    to aix-5.3 was successful. If zdump reports -v $TZ reports April 1,
    and instfix -iak reports IY75211 installed, what is the fix?

    > The new DST affects more than just AIX. It also
    > affects Java, applications and the HMC.

    Thank you for the URLs.

    For many more POSIX boxes see:
    http://www.twinsun.com/tz/tz-link.htm

    For boxes not more specifically covered see the readme.txt file in
    the latest file tz*.tar.gz from your preferred legal/standards site.
    (e.g. as of 2007.02.16
    ftp://elsie.nci.nih.gov/pub/tzdata2007b.tar.gz
    )


  • 4.  Re: How to verify DST 2007 readiness

    Posted Mon February 19, 2007 01:28 PM

    Originally posted by: SystemAdmin


    Use this command

    root# instfix -ivqk IY75213 (for AIX 5.2) - substitute the correct APAR number for which release of AIX you are running.

    IY75213 Abstract: Daylight Saving Time default changing in 2007

    Fileset bos.adt.prof:5.2.0.85 is applied on the system.
    Fileset bos.rte.libc:5.2.0.85 is applied on the system.

    James


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