Exchange Server Forums
Forums |
Register |
Login |
My Profile |
Inbox |
RSS 
|
My Subscription |
My Forums |
Address Book |
Member List |
Search |
FAQ |
Ticket List |
Log Out
Servers needed for Exchnage 2007 scc failover clustering
|
Users viewing this topic:
none
|
Logged in as: Guest
|
Login  | |
|
Servers needed for Exchnage 2007 scc failover clustering - 13.Jan.2010 8:01:28 AM
|
|
|
bcalamia
Posts: 7
Joined: 13.Jan.2010
Status: offline
|
We purchased 2 copies of Exchnage 2007 SP1 Enterprisse with the intent of installing on 2 physical servers attached to a SAN with SCC failover clustering. Clustering is set up and I was able to install Exchnage 2007 the Active Cluster mailbox role on node 1 and the passive Clustered mailbox role or node 2. Question, when I go to install the only other 2 roles that I need (Cleint Access Role and Hub Transport Role) they are greyed out. There is no mention anywhere that a 3rd server or 3rd Enterpise license is needed for these other 2 roles. Should I be able to do SCC with 2 Exchange 2007 Enterprise licenses and 2 physical servers attahed to a SAN? Thanks - Ben
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 13.Jan.2010 8:15:46 AM
|
|
|
edgar.morales
Posts: 40
Joined: 15.May2008
Status: offline
|
bcalamia...if you are clustering your mailbox server roles on Exchange 2007 then you cannot install other roles on the same servers. You will will need to setup another server hosting your HUB/CAS server roles for exchange which I believe means you will need additional licenses for these additional roles since they have to be installed on an additional server.
I have a similiar setup.....2 Servers running the Mailbox server roles in a CCR cluster then 2 Virtual Servers running the HUB/CAS server roles setup in an NLB cluster running on an ESX server.
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 13.Jan.2010 8:31:49 AM
|
|
|
edgar.morales
Posts: 40
Joined: 15.May2008
Status: offline
|
Here is the technet article explain this
http://technet.microsoft.com/en-us/library/bb124721(EXCHG.80).aspx
Clustered Mailbox Servers
Both CCR and SCC are solutions that are deployed in a Windows Server failover cluster. Only the Mailbox server role can be installed in a failover cluster. No other roles can be installed in a failover cluster. A Mailbox server that is deployed in a failover cluster is referred to as a clustered mailbox server. Clustered mailbox servers running in a CCR environment are very different from clustered mailbox servers running in an SCC environment. Furthermore, clustered mailbox servers in Exchange 2007 RTM and Exchange 2007 SP1 are very different from clustered mailbox servers in previous versions of Microsoft Exchange.
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 13.Jan.2010 8:49:01 AM
|
|
|
bcalamia
Posts: 7
Joined: 13.Jan.2010
Status: offline
|
Thanks. I've read that article and many others and I'm still wondering where Microsoft states that you need a 3rd physical or virtual server for the other roles. It's a pretty big point to leave out unless I've missed it somewhere which is very possible. In addition the licensing link states nothing about a 3rd Exchange 2007 Enterpise license needed to do a simple SCC Failover. Does that mean I would need a 4th license and server to make the HUB and CAS roles redundant http://technet.microsoft.com/en-us/library/bb232170(EXCHG.80).aspx
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 13.Jan.2010 11:15:32 AM
|
|
|
adrian.pettitt
Posts: 240
Joined: 24.Sep.2009
From: UK
Status: offline
|
I think you have misunderstood Edgar.
What he has told you is correct.
You require two servers for SCC/CCR. no other roles can co-exist with Clustered Mailbox server.
If you read Exchange docs you will see you REQUIRE a HUB server. Very strictly you do not require a CAS server, but try running without one, and it is recommended.
So if you have two servers that can only hold one role and you require extra roles it stands to reason you require a 3 rd server which will hold CAS and HUB roles.
One point to note is that if you require the resilience of clustered Mailbox servers you probably also require resilience in the CAS/HUB role as well, and another server.
Adrian
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 14.Jan.2010 5:45:11 AM
|
|
|
bcalamia
Posts: 7
Joined: 13.Jan.2010
Status: offline
|
Thanks, Now I'm down to licensing. Two physical clustered servers running Exchange Active Cluster mailbox role on node 1 and the passive Clustered mailbox role or node 2. I installed the other 2 roles that I need (Cleint Access Role and Hub Transport Role) on a Virtual Machine. Are we OK license wise since we have Exchange roles spread across 3 servers. We have purchased 2 copies Exchange 2007 SP1 Enterprise Edition for our site. If all is good we need to create the same scenerio at the other site in our forest (different city) We purchased 2 copies of Exchange 2007 SP1 Enterprise Edition for that site also. When complete our network will consist of one forest, 2 physical sites that each have 2 Windows 2008 DC's and 2 Exchange 2007 Clustered Mailbox servers. Each site will use the same CMSNAME so if employees travel back and forth netween sites Mail won't need to be reconfigured (still using Office 2003)
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 14.Jan.2010 5:58:55 AM
|
|
|
adrian.pettitt
Posts: 240
Joined: 24.Sep.2009
From: UK
Status: offline
|
Firstly, you require 3 licenses per site in your configuration. 1 for each CMS (makes no difference if they are passive/active) and 1 for HUB/CAS.
Am I correct in assuming that you are:
Running one domain with 2 sites.
You plan on creating two CMS groups with the same name, 1 in each site?
Adrian
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 14.Jan.2010 6:19:49 AM
|
|
|
bcalamia
Posts: 7
Joined: 13.Jan.2010
Status: offline
|
Thanks for clearing up the licenseing. We'll purchase another 2 , one for each site.Yes, you are correct in assumption:
Running one forest/domain (VFDomain) with 2 sites (2 DC's and a clustered Exchange 2007 Server) at each site (VFSite - HASite)
Not sure what you mean by 2 CMS Groups. We will have 2 OU's for Users in Site1 and Users in site2. When a User logs on at either site I assume he would authenicate to DC's at the site he is sitting and get his mail from the closest Exchange Server. When prompted for mail server at initial logon at either site we would want to key in one name (ex: ValleyForgeMail)
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 14.Jan.2010 6:28:46 AM
|
|
|
adrian.pettitt
Posts: 240
Joined: 24.Sep.2009
From: UK
Status: offline
|
From what you are saying I understand that you have 2 pairs of clustered mailbox servers. Each pair will have the CMS name velleyforgemail?
To the best of my knowledge this is not possible. Each CMS must have a unique name with a domain, as a computer account is created
I do not see how you plan on getting people to access their mail on the local site, regardless of which local site they are on,as their mailbox will be in one mailbox database on one mailbox server, to have two copies of a mailbox you will need to use CCR, even then I believe that one is passive and one is active. Not used CCR so have not investigated it extensively.
Adrian
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 14.Jan.2010 7:08:45 AM
|
|
|
bcalamia
Posts: 7
Joined: 13.Jan.2010
Status: offline
|
My company will not spend money for a 3rd Exchange 2007 License that I need to install CAS/HUB on a 3rd server so clustering is now out with only 2 licenses. Since I already have 2 physical servers and 2 copies of Exchange 2007 Enterprise can I do a poor mans cluster. Install Exchange 2007 (all roles, no clustering) on 1 server with logs and mailbox Database on SAN. As a backup Install Exchange 2007 (all roles, no clustering) on 2nd physical server pointing to SAN for logs and DB. Power off 2nd server (same name) and if the 1st server ever crashes bring up the 2nd Exchange server. I know its a waste of resources but at this point second copy of Exchange is useless without a 3rd license needed for clustering.
|
|
|
|
|
RE: Servers needed for Exchnage 2007 scc failover clust... - 14.Jan.2010 7:15:40 AM
|
|
|
adrian.pettitt
Posts: 240
Joined: 24.Sep.2009
From: UK
Status: offline
|
I would say that is not possible.
AD will ID both servers as different, even if they have the same name. One will be able to use the AD the other will not. That is an off the cuff reason.
A stretched cluster is possible for scc, as long as there is a shared IP subnet on both sites that can be used.
Additionally you could look at stretched CCR, not sure about that as I do not use it.
That would mean 1 clustered server in each site, and HUB/CAS server in each site.
Additionally, you do not require Enterprise Windows or Exchange for HUB/CAS server, you only need it for the clustered servers. Maybe that will help as it should be cheaper.
Adrian
|
|
|
|
 New Messages |
 No New Messages |
 Hot Topic w/ New Messages |
 Hot Topic w/o New Messages |
 Locked w/ New Messages |
 Locked w/o New Messages |
|
 Post New Thread
Reply to Message
Post New Poll
Submit Vote
Delete My Own Post
Delete My Own Thread
Rate Posts |
|
Printable Version
