Archive for December, 2009

Dilbert on Career Paths & Retirement

December 19, 2009 Comments off
Categories: Dilbert /Humour

Exchange 2010 Mailbox Server Role Requirements Calculator

December 16, 2009 Comments off
Download from the MS Exchange Team Blog at: Exchange 2010 Mailbox Server Role Requirements Calculator
Categories: Exchange Server

Exchange 2010 dumps single instance storage

December 15, 2009 Comments off

Say hello again to attachment duplication….

"…Microsoft added single instance storage (SIS) to Exchange 2005 and has now removed it from Exchange 2010, ensuring that duplicated applications will be stored in all their redundant, space-gobbling glory on Exchange server’s disks. Why has Microsoft made this apparently retrograde step?

A Microsoft Social Technet entry reads:

Header data for all mailbox items is stored in a single database table — this change makes the database more efficient because it can process a single table for a mailbox during a client session instead of accessing different tables for different mailbox folders. A side effect of this schema change is that Exchange no longer uses Single Instance Storage (SIS) to keep just one copy of message content per database. Most servers support multiple databases, so the efficiency gained from SIS is less and less as time goes on.

This talks of Exchange server efficiency and doesn’t mention storage array efficiency, in which the storage of gigabytes of duplicate data is to be abhorred.

A change in the opposite direction concerns compression:

The Store compresses attachments — Microsoft calculates that the CPU time spent compressing and decompressing attachments is less than the work required to manage the storage of very large uncompressed data within the database. This change also reduces the overall size of Exchange databases, which speeds up operations such as backups.

Again the focus of optimisation is the server, with storage efficiency a byproduct.

Previously we have learnt that Exchange 2010’s I/O improvements meant that its database could use cheap high-capacity SATA drives instead of faster, more expensive Fibre Channel or SAS disk drives. Now we see that high capacity SATA drives may well be needed anyway because of attachment duplication.

Across a large enterprise with tens of thousands of Exchange users, there must be the potential for multiple tens of gigabytes of wasted storage space – if not terabytes. ®…"


Categories: Exchange Server

Microsoft Cloud gets Real – Unifying of Windows Azure and Windows Server Product Groups

December 11, 2009 Comments off
"Microsoft announced on Tuesday that it is creating a new group called the Server and Cloud Division (SCD). The group will include the Windows Azure development team and the Windows Server and Solutions group, and be housed in the Server and Tools Business (STB), run by STB president Bob Muglia.
…This realignment is a natural development. Azure is becoming a real business, and thus it’s moving into a real business group, said Rob Helm, an analyst with the independent firm Directions on Microsoft.  Unifying Azure with Windows Server should help the former catch up feature-wise with its older sibling, Helm said, and eventually lead to features being released first on Azure.
Read more…

Exchange 2010 Mailbox Server Role Requirements Calculator

December 11, 2009 Comments off
Categories: Exchange Server

TechNet Webcast: Microsoft Virtualization Best Practices for Exchange Server

December 11, 2009 Comments off

"Virtualizing business critical applications delivers significant benefits, including cost savings, enhanced business continuity, and an agile and efficient management solution. In this webcast, we focus on virtualizing Microsoft Exchange Server using Microsoft solutions, we discuss the benefits of using Microsoft virtualization technologies instead of technologies from key competitors such as VMware, and we provide technical guidance and best practices for virtualizing Exchange Server in various production scenarios. We also discuss results from lab deployment tests"

TechNet Webcast: Microsoft Virtualization Best Practices for Exchange Server (Level 300) Event ID: 1032428204

Categories: Exchange Server

Random Exchange 2010 info from MS Exchange Team Blog

December 11, 2009 Comments off
Categories: Exchange Server
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