Exchange 2010 best practice to install service packs

Hi,

server1   CAS HUB
Server2   MB
Server3   MB

no service packs installed at all
so the question is what is the best practice to update all the servers to the latest service pack ?

possible to update directly to service pack 2 ? or i have to install it in sequence 1 then 2 ?
which server i should start with ?
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F_A_H_DAsked:
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Install SP2 for Exchange
http://exchangeserverpro.com/upgrading-exchange-server-2010-service-pack-2

Upgrade Exchange 2010 to Exchange 2010 SP1 or Exchange 2010 SP2
http://technet.microsoft.com/en-us/library/bb629560%28EXCHG.141%29.aspx

possible to update directly to service pack 2 ? or i have to install it in sequence 1 then 2 ? - Direct to SP2

- Rancy
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AkhaterCommented:
you don't need to install SP1 install directly SP2 and then Rollup 5-v2 for SP2

start with the CAS HUB and then move to your mailboxes
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F_A_H_DAuthor Commented:
well i will install the sp2 directly and i will start with the CAS HUB server

i should run setup.exe ?? or from the command line ?
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Making Bulk Changes to Active Directory

Watch this video to see how easy it is to make mass changes to Active Directory from an external text file without using complicated scripts.

AkhaterCommented:
you can just double click on setup no need to do it from the command line
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Anyways is good but GUI is more easy and comfortable to work with

- Rancy
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AkhaterCommented:
Anyways is good but GUI is more easy and comfortable to work with

I guess that's very personal just like food actually :o) but I can't argue on the "easier" part though hehe
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
:) ...... Not much to say :)

- Rancy
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AmitIT ArchitectCommented:
You need to follow a proper sequence, follow my guide

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_10389-Steps-for-Upgrading-Exchange-2010-SP1-to-SP2-with-RU3.html

If you have Enterprise and Schema admin rights, Schema will extended automatically. Also to note, don't leave mix of SP2 and SP1 Exchange 2010 servers, if will break the OWA proxying.
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