ADSM-L

Re: Time Change...

1997-10-23 09:38:04
Subject: Re: Time Change...
From: "Mark J. Cecil" <mjc AT WAYLOO.TCS.TULANE DOT EDU>
Date: Thu, 23 Oct 1997 08:38:04 -0500
>
> How does ADSM record the time in its recovery log?  I'll bet its local
> time and therefore, at this time of year for you northern hemisphere
> guys, there will be two 0200 timestamps on Sunday morning.  Providing
> you're not doing a whole lot of ADSM work or your ADSM database gets
> backed up without needing the recovery log, you should have no problem
> here.
>
> Murray Nicholas
> Systems Specialist
> HALTEK PTY LTD/Galeforce Information Services Pty Ltd

I'm making a guess here:

Since the recovery log need not be portable (portable="we don't know what OS
the recovery log will be used with, so make it generic"), times need not be
stored in human-readable or normalized form.  They are most likely in the
format of the time system calls, which is the number of seconds since Jan 1,
1970 (which is, oddly enough, actually a fairly portable time representation).
This value is never altered based on Savings Time.  Only the localtime()
type time converters take Savings Time and TZ info into account.

Mark

--
============== See me at http://www.Tulane.EDU/~mjc ======================
============== See me at http://www.Tulane.EDU/~mjc ======================
Mark Justin Cecil    |  Tulane University    | mjc AT mailhost.tcs.tulane DOT 
edu
Systems Programmer   |   Computing Services  |     cecil AT eecs.tulane DOT edu
(504) 865-5631 x 2535|    New Orleans, LA    |  http://www.Tulane.edu/~mjc
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