Case Scenario Selecting LUNs Types

You have purchased several iSCSI devices that you will use to provide shared storage for several Windows Server 2008 deployments. You are planning the configuration of LUNs based on the shared storage needs of each server. The first server cluster will be hosting a SQL Server 2008 database, and it will be necessary to ensure that the LUN chosen supports both speed and redundancy. The second LUN will be used for the shared storage device that will function as the witness disk in an Exchange Server cluster that uses the Node and Disk Majority quorum model. This witness disk should be able to survive the loss of one of the disks hosting the LUN. The final LUN will host transaction logs where read/write performance is paramount. With this information, answer the following questions.

1. Which LUN type should you use for the database server cluster?

2. Which LUN type should you configure for the shared storage device that will host the transaction log data?

3. Which LUN type should you configure for the Exchange Server cluster's witness disk?

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