Question of UTC vs Local Time

2011-11-29 Thread CHAPLIN, JAMES (CTR)
Has anyone moved from Local time (EST) to UTC with zLinux?? Any comments or experiences to share? One of our upper level managers want us to look at what it will take to move everything that is on Local time (Linux zOS) to UTC. From a systems point of view I cannot think of an impact, just on

Re: Question of UTC vs Local Time

2011-11-29 Thread Alan Cox
On Tue, 29 Nov 2011 12:37:56 -0500 CHAPLIN, JAMES (CTR) james.chap...@cbp.dhs.gov wrote: Has anyone moved from Local time (EST) to UTC with zLinux?? Any comments or experiences to share? Linux has no real notion of local time in the kernel or system. Local time is a conversion handled in

Re: Question of UTC vs Local Time

2011-11-29 Thread McKown, John
If you're application is requesing local time and you set up the TIMEZONE information correctly, then I doubt you'd see any problem. The problems occur if the application requests GMT time or does the assembler STCK or STCKE instruction to get the TOD clock from the hardware directly. You

Re: Question of UTC vs Local Time

2011-11-29 Thread CHAPLIN, JAMES (CTR)
The sysplex is a big issue at our shop, so this will be interesting, more so than the Y2K eleven years ago ;-). Thanks for responding. James Chaplin Systems Programmer, MVS, zVM zLinux Base Technologies, a CA Technologies Company -Original Message- From: Linux on 390 Port

Re: Howto automagically configure for Layer 2 or 3

2011-11-29 Thread Mark Post
On 11/24/2011 at 09:59 AM, Agblad Tore tore.agb...@volvo.com wrote: Hi again. I have these tricky things showing up all the time :) I have looked here and there but I don't find the answer to this question: /etc/udev/rules.d contains rules, but as they have persistent in the name I get

Re: Question of UTC vs Local Time

2011-11-29 Thread Alan Cox
On Tue, 29 Nov 2011 14:23:37 -0500 CHAPLIN, JAMES (CTR) james.chap...@cbp.dhs.gov wrote: The sysplex is a big issue at our shop, so this will be interesting, more so than the Y2K eleven years ago ;-). Thanks for responding. If you are doing a review of time handling in your Linux/Unix apps as

Re: Question of UTC vs Local Time

2011-11-29 Thread Shane
On Tue, 29 Nov 2011 13:04:55 -0600 McKown, John wrote: One is to simply wait for n hours for the GMT version of the TOD clock to move forward from the local TOD clock time (US EST would be a 5 hour wait). This is not likely to go over well with management. grin. - We looked at this (in a