> But is loss of a single recorrd disastrous?

No, I said earlier, this is not banking transactions where a lack of 2-phase 
commit risks losing a bunch of money between the cracks.

Charles


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Paul Gilmartin
Sent: Monday, June 20, 2022 9:09 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Some UNIX file usage questions

On Mon, 20 Jun 2022 22:23:45 -0500, Mike Schwab wrote:

>24 byte record would fit 82 records per track.
>http://www.bitsavers.org/pdf/ibm/dasd/reference_summary/GX26-4577-0_3390_Reference_Summary_Jun89.pdf
> 
Why are people discussing "tracks" in a thread titled ... Ummm, let me look 
above ...
"Some UNIX file usage questions"?

>On Mon, Jun 20, 2022 at 10:05 PM kekronbekron  wrote:
>>
>> Does the 96-files a day solution not work?
>> You could cat *-yyyymmdd.txt > yyyymmdd.txt at 00.05 and then delete the 96 
>> files.
>> You wouldn't have to worry about losing out data in memory if it's written 
>> to a file every 15 min.
>> It appears to be a pretty basic & simple solution?
>> 
My understanding is that the kernel flushes its cache to disk a couple
times a minute.  Little risk of data loss.  But is loss of a single recorrd
disastrous?  What's the SLA?


>> > Whoever mentioned Rexx variables moving around was on target. Rexx's 
>> > internal storage management is a black box. It may well move stuff around 
>> > from time to time. As I say, everything is passed by value. And there is 
>> > no C ampersand operator. I know of no way to get the address of a Rexx 
>> > variable. 
>
Not documented; subject to change.

>Actually, now that I think about it, I have used IRXEXCOM which returns Rexx 
>variable data "in bulk" to an assembler routine, but I do not recall the 
>details. It may pass the actual address, not a copy of the value -- I don't 
>recall.
>> >
Is it guaranteed to survive after return to Rexx?

-- 
gil

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