Veritas-bu

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

2007-01-10 15:31:29
Subject: [Veritas-bu] NetBackup and New Daylight Saving Time Rules
From: jack.l.forester at lmco.com (Jack Forester, Jr.)
Date: Wed, 10 Jan 2007 15:31:29 -0500
Good point.  I used to admin an AS/400 way back in the day (V1R3) and I 
had to remember to reset the clock at the beginning and end of DST.  I'd 
hope that by now IBM would have made that automatic.

Jeff Lightner wrote:

>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
>>    
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>to 
>  
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>>go to java.sun.com and download the newer JRE / JDK and install it.
>>    
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>It's 
>  
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>>actually very easy to do.
>>
>>I believe what Jack's asking though is if the Java update is necessary,
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>as 
>  
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>>updating Java on a server can have other impacts, especially if there's
>>    
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>an 
>  
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>>Application Server on it.  As far as I know, the Java components are
>>    
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>only 
>  
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>>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
>>    
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>those 
>  
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>>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