On Sat, 30 May 2020 07:29:17 -0700, Ed Jaffe wrote:
>On 5/30/2020 7:08 AM, Paul Gilmartin wrote:
>> What's the option to select FMT8/9 DSCBs in:
>> o JCL DD statements?
>> o TSO ALLOCATE?
>> o BPXWDYN
>
>This functionality has been around since 2008. You select it with the
>EATTR= parameter, which is available through JCL and dynamic allocation
>techniques. We supply it automatically via SMS ACS routines, so no one
>ever has to think about it.
>
OK. I see BPXWDYN has it. And in JCL Ref.:
Subparameter definition
EATTR = OPT
Extended attributes are optional. The data set /can/ have extended
attributes
and reside in EAS. This is the default value for VSAM data sets.
Does "can" mean the programmer must take specific action to set DS9TIME
(as you may have done), or is it set automatically by OPEN NEW?
>> Does IBM provide a utility, API, or sample code to format DS9TIME
>> as "hh:mm:ss.uuuuuu zone" for display?
>
>I assume the time is displayed in all the usual places where the
>extended attributes are displayed e.g., ISPF.
>
What about user code? I suppose a programmer who wishes to
see UTC needs merely to persuade a sysadmin to set CVTLDTO=0.
>>
>> So on 2020-11-01, 5.40e9 might display as 01:30:00 MDT,
>> and 9.00e9 might display as 01:30:00 MST, right?
>>
>> "*local* time"!? WTF!? Where did IBM designers have their heads stuck?
>
>That's the easiest and most understandable way. ISPF, JES, SYSLOG,
>OPERLOG, etc. have been recording time as local time forever and ever
>and I'm not hearing a lot of complaints.
>
No. Aviation and the military use UTC (Zulu) because it's less confusing,
even safer:
https://aviation.stackexchange.com/questions/16818/why-does-aviation-use-zulu-time-instead-of-the-local-time
Kinda like SI vs. Imperial.
https://en.wikipedia.org/wiki/Gimli_Glider#Refueling
On Sat, 30 May 2020 12:00:52 +1000, Peter Vels wrote:
>
>... Periodically I update a list of data sets created by an
>application over which I have no control. I want to sort the list by
>descending date and time. Where can I get the time from? LISTDSI won't
>provide it unless the data set is on an EAV volume (doesn't apply).
Peter might want 2020-04-05 01:45 AEDT to sort as earlier than
2020-04-05 01:15 AEST. Does DS9TIME support that?
-- gil
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