SUMMARY: Patching and Reboots

From: Alan Rubin <Alan.Rubin_at_csg.com.au>
Date: Tue Jan 16 2007 - 17:20:47 EST
A near consensus has formed agreeing that it is a bad idea to delay
reboot after patching.  One reason is running apps rely upon the
binaries and libraries that use the file(s) being patched.  If they
reference a certain offset in a file and that file has changed, the
server will crash.

Thanks to many including Christopher Barnard, David Stapleton, Andrew
Caines, John Christian, and many more.

Alan Rubin
alan.rubin@csg.com.au

-----Original Message-----
From: sunmanagers-bounces@sunmanagers.org
[mailto:sunmanagers-bounces@sunmanagers.org] On Behalf Of Alan Rubin
Sent: Friday, 12 January 2007 8:58 AM
To: sunmanagers@sunmanagers.org
Subject: Patching and Reboots

Hello,

>From past experience, installing a recommended patch cluster can take
up
to 2 hours.  Included with each cluster is almost always a patch which
requires a reboot (such as a kernel patch).  If we were to install the
cluster during business hours but schedule a reboot/outage for after
hours how would this affect the stability and function of the server?  I
will have to present plans for patching to a change management board -
which should be a familiar practice to many on this list - and they will
need to know the risks associated with such a plan.

Regards,

Alan Rubin
alan.rubin@csg.com.au
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Received on Tue Jan 16 17:21:33 2007

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