Veritas-bu

[Veritas-bu] NetBackup and New Daylight Saving Time Rules

2007-01-10 14:52:47
Subject: [Veritas-bu] NetBackup and New Daylight Saving Time Rules
From: jlightner at water.com (Jeff Lightner)
Date: Wed, 10 Jan 2007 14:52:47 -0500
It's probably because Java is advertised as being platform independent.
If you had a compile for an OS that didn't do DST (OS400 maybe?) it
would be nice if the Java did.   However for most of us it's a bit of a
pain.  I wasn't even aware of this Java TZ stuff until we got the notice
from HP sometime back that specifically mentioned Java.

-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Jack
Forester, Jr.
Sent: Wednesday, January 10, 2007 2:03 PM
To: Veritas List
Subject: Re: [Veritas-bu] NetBackup and New Daylight Saving Time Rules

I guess I didn't phrase my question very well, as we are testing the 
Java update as well.  I wrote a little perl script so I could identify 
all of the installed JREs on my servers.  Any time we do patches or 
updates, I always worry that we've overlooked something small but 
critical that will break things in a major way.  I tend to follow the 
philosophy that if it ain't broke, don't fix it.

I wonder why Sun gave Java the ability to do DST rather than using the 
functionality of the underlying OS.

Mike L. Varney wrote:

>Sun distibutes Java separately from the Solaris OS patches - - you need
to 
>go to java.sun.com and download the newer JRE / JDK and install it.
It's 
>actually very easy to do.
>
>I believe what Jack's asking though is if the Java update is necessary,
as 
>updating Java on a server can have other impacts, especially if there's
an 
>Application Server on it.  As far as I know, the Java components are
only 
>the Admin GUI and the Backup & Restore GUI.  The rest of NetBackup is 
>distubuted in binary form.
>
>That being said, I've always kept our JREs up to date, especially on
those 
>mission critical servers.
>
>-- M
>
>
>
>
>"Jeff Lightner" <jlightner at water.com> 
>Sent by: veritas-bu-bounces at mailman.eng.auburn.edu
>01/10/2007 12:44 PM
>
>To
>"Jack Forester, Jr." <jack.l.forester at lmco.com>, "Veritas List" 
><veritas-bu at mailman.eng.auburn.edu>
>cc
>
>Subject
>Re: [Veritas-bu] NetBackup and New Daylight Saving Time Rules
>
>
>
>
>
>
>HP when it sent notification for the OS patches also sent notification
>for the need to update Java including a TZupdater tool for HP-UX.
>Surprising they'd have a way to do the update and Sun who wrote Java
>wouldn't.
>
>-----Original Message-----
>From: veritas-bu-bounces at mailman.eng.auburn.edu
>[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Jack
>Forester, Jr.
>Sent: Wednesday, January 10, 2007 12:12 PM
>To: Veritas List
>Subject: [Veritas-bu] NetBackup and New Daylight Saving Time Rules
>
>This isn't something I've seen discussed here in recent memory, but
it's
>
>something we're working on right now.  The new Daylight Saving Time 
>rules for the US take effect this year and we're wondering if anybody 
>has investigated the impact to NetBackup.  We've been testing our OS 
>patches and they appear to work, but Sun brought something to our 
>attention -- Java does its own DST conversion and needs to be updated. 
>Veritas has assured us that NetBackup will be fine as long as we have 
>the OS patches installed, but I'm curious about the bits done in Java. 
>My feeling is that the Java stuff doesn't do any date/time critical 
>operations and will probably be fine even if we don't update the JRE.
>
>Any thoughts?
>
>  
>


-- 
Jack L. Forester, Jr.
UNIX Systems Administrator, Stf
Lockheed Martin Information Technology
(304) 625-3946

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