You are driving a bus and you make a stop and pick up Margaret, a 66 year old woman. At the next stop, you pick up two people, a 22 year old man named Ralph and a 44 year old woman named Lisa. At the next stop, Margaret gets off, while 3 more people get on, a 35 year old man named Fred, his son who is 4 named Colby and a 32 year old woman named Heather. What is the name of the bus driver?
Did you get it? Was it too easy?
How about this one.
First, read through the Microsoft KB article that discusses where to store Outlook data files.
After reading it, can you tell me if Microsoft will support a configuration where Outlook is running on a RDSH (XenApp) or VDI (XenDesktop) instance in Cached Exchange Mode where the .OST file is stored on a networked file server?
Your answer will be based on how far you read. Unfortunately, I’ve witnessed many very bright people tell me that this configuration is not supported. The reason is that they were either told it wasn’t supported or they read this article and stopped before reaching the end. Why would they stop? Because in the “More Information” section of the article, only 1/3 of the way down says
It clearly states “Because of these behaviors, Offline Folders (.ost) files and Personal Address Book (.pab) files on a network share that are accessed remotely are also unsupported configurations.”
That is if you stop reading.
Further down, the article provides special statements for different circumstances. We are interested in the RDS/VDI section that says
So if I use RDSH (XenApp) or VDI (XenDesktop), I can use Cached Exchange Mode with the .OST file being on the network if I have a high-bandwidth, low latency connection. Well, that is our XenApp best practice, keep the data and app in close network proximity. So the network file server you use to store the .OST file should be in the same data center as the XenApp server, with this configuration, the location of the Exchange server become irrelevant.
Now should you implement it? Stay tuned… 🙂
Blog Series Summary:
- Part 1: Is Outlook Cached Exchange Mode on XenApp and XenDesktop supported?
- Part 2: When to use Outlook Cached Exchange Mode on XenApp and XenDesktop?
- Part 3: How to use Outlook Cached Exchange Mode on XenApp and XenDesktop?
From the virtual mind of Virtual Feller