Mailbox Server Role Storage Requirements Calculator v16.8
Ross Smith IV announced at the Microsoft Exchange Team Blog that the Mailbox Server Role Storage Requirements Calculator has been updated to version 16.8.
According to the updates tracking page at the You Had Me At EHLO blog, these are the Bug Fixes / Enhancements:
- To aid you in your designs where you know this impact, we are introducing a new input field in the Mailbox and Client Configuration of the storage calculator. The way this value is used is as follows: ((db reads + db writes) * Multiplication Factor) + (db reads + db writes) = new IOPS value.
- The Disk Space and Requirements table was updated to remove confusion around space requirements vs. LUN requirements as they are two separate entities. The space requirements fields simply state the space required for the Logs or database while LUN requirements fields include the content index capacity, the LUN free space requirement, restore/maintenance capacity (if restore LUN is disabled).
- On the Storage Design tab, the Total Number of SCR Disks Required for the Single Mailbox Server row was updated to include the correct count of SCR disks when the source solution is CCR and the SCR target configuration is designed to match the source configuration.
- 7.2K SAS disks were added to the Storage Design Disk Type field. These disks provide 60 random IOPS at the controller when under a 4K/8K 1:1 read:write ratio with latency under 20ms with 80% capacity utilized (essentially they are about 20% faster than 7.2K SATA disks from a random I/O perspective).
- The User Mailbox Configuration table on the Storage Requirements tab now exposes the calculated database cache / mailbox (which is based on the recommended memory configuration and is used in the I/O prediction formula calculations) as opposed to the desired database cache based on the message profile.
- Updated various comment fields.
To get the detailed instructions on how to use it, read Exchange 2007 Mailbox Server Role Storage Requirements Calculator.