BITPro User Group meet on 13th March, 2010

                                            Exchange 2007 – High Availability Solution - Single Copy Cluster
 
 Those are new to this exchange 2007 they might feel single copy cluster might be a new cluster version for exchange. Guys, this not a new version at all, it is just a name they have give to our existing cluster environment what we had in Exchange 2003. i.e., Active\Passive Cluster.

In my last article : Exchange 2007 - Local Continuous Replication (High Availability) you have seen what LCR is, how it is working and how it is useful in terms of more then have one disk in a Exchange Server. LCR is supported in Exchange 2007 standard edition as well in enterprise edition 2007. And best suitable for small organization.

Cluster Continuous Replication is supported only in Exchange 2007 enterprise edition. It is almost same like Local Continuous Replication however instead of shipping the log file from one disk to another disk, it will ship the log from one server to another server. In earlier version i.e exchange 2003 what we had is active\passive cluster where we will have one shared disk in which the exchange database is stored. By having this CCR technology we are eliminating the shared disk fundamentals what we had in exchange 2003. Responsible for log shipping between the nodes is Microsoft Exchange Replication Service. This is just a basic overview

                                                    Exchange Server 2007 – High Availability
                                                             Local Continuous Replication

Whenever we talk about high availability what does it mean? It is nothing but keeping server alive as much we can. In Exchange 2003 or earlier version we had a concept called as clustering where we had a shared disk & Quorum Disk and in shared disk we use to store the exchange database & if one node fail other node will take the ownership.

In Exchange 2007 we have some new features in terms Exchange High Availability:

 Local Continuous Replication (LCR)
 Cluster Continuous Replication (CCR)
 Single Copy Cluster (SCC)
 Standby Continuous Replication (SCR) - It is only supported in Exchange 2007 SP1 version

We will take a walk on each and every  features which I described right now so that we can understand the basic concept and steps.

Forklifting the Mapi Database to the Non-Mapi tree and Vice versa.
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User reported me that he has some issue with Public folder store database under first storage group and need to shift to new public folder store under secondary storage group.

As you all know we can I have only one Mapi store for public folder storage and that is also resides under first storage group. But with the help of my research I am able to point the second public folder store as my default Mapi structure. So I taught to share this step with you all guys…

Note: The rule mention below might catch a majority of the messages, but if POP/IMAP clients are being used, it might not capture all of them. It totally depneds in client behaviour.

Hello Friends,

While going through the IMF article : http://exchangeserverinfo.com/2007/05/05/imf.aspx which is posted by Ashwin Kumar, I taught lets elaborate it little bit more further regarding this Spam Email in an Exchange server environment and how Microsoft come up with Anti-spam software inorder to reduce the spam mail flow in a Exchange Organization.
As you all aware what is unsolicited email message which is also known as junk e-mail messages or spam. It is normally sent from a single source with a intention of broadcasting to as many mailboxes as they can, at one time. Main intention of spammer is that they want each and every user should open it and read it so that they can make money out of this sort of transaction. But because of their own profit one better exchange organization will loose the good performance level and their business will get effected in one or other way round.