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Patching an entire server farm

Nutter's Help Desk By Ron Nutter , Network World , 04/09/2007
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I am new to the company where I work and responsible for the patch management process, before I started here there was none. Now I have implemented a patch management process, but we have a server farm of 500 Windows servers not connected to the internet consisting of Windows 2000 and 2003 servers with various service packs. For these servers I still have to see how to get up to date with the patches (some servers are missing patches as from up 2002). Now I have to make sure our servers are up to date with at least critical patches which all require reboots for patches of the last 5 years. Of course our clients like to limit the down time of the servers. Do you have any suggestions?
-- Via the Internet.

Unfortunately, patching servers to keep them current and avoid problems is a cost of doing business. You should have some type of Internet connectivity to do the patching, because that will be faster than installing patches from CDs. While some patches let you hold off on reboots until the end, I would not recommend it; I prefer to apply the patches in stages, testing the server for proper operation between groups of patches.

To minimize the potential problems, there are several things you should do first to get ready. Make sure that all the servers are showing the same time and are using the same time source. I would also look into the server resource tools to run some additional server checks to look for possible Active Directory problems, etc. before and during the patch application process.

Because of the number of servers, I'd strongly suggest looking at a commercial patch-management solution such as PatchLink - they can make the process easier and reduce the amount of overall downtime. In any case, schedule some additional tape backups to give yourself a safety net just in case. You may also want to factor in updates for additional services such as SQL, which will need updates applied that aren't a part of the base Windows server patch process.

Your clients need to understand that there will be some downtime. With some planning and the use of a commercial patch-management tool, you should be able to go a long ways in minimizing the amount of downtime. Once the servers are up to date, keeping them up to date on an ongoing basis shouldn't be nearly as involved.

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I think WSUS would be a good choiceBy Calvin on January 4, 2008, 3:10 pmWSUS in conjunction with GPO's can be flexible enough to meet the requirements that were described. I have several hundred servers and I am using WSUS with GPO's...

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Ron if you don’t mindBy Richard Linke on September 24, 2007, 10:13 amRon if you don’t mind I’d like to give my point of view on the reason WSUS may not be the best choice. I spent a lot of time reviewing patch management tools...

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Why not use WSUS?By Jon on April 9, 2007, 10:45 amOn the face of it, this is a perfect opportunity for WSUS. Since you didn't suggest it, I can only think that you have a good reason for not doing so. May I ask...

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Patching an entire server farmBy Ron Nutter on April 8, 2007, 9:43 pmUnfortunately, patching servers to keep them current and avoid problems is a cost of doing business. You should have some type of Internet connectivity to do the...

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How to patch old Windows 2000 servers while minimizing downtime?By Anonymous on April 5, 2007, 10:27 ami loved the article on patch management. Re: How to handle patch management. I am new to the company where i work and responsible for the patch management...

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