A client requested that your provide the number of physical disks required to support it Microsoft
Exchange 2003 Storage Groups. The company has 12.500 users at 1.2 IOPS. At peak activity, up
to 10,000 users could be logged on to Exchange. What other information is required too accurately
calculate the number of required disk spindles to meet the user IOPS requirements?

A.
Read/Write ratio and Write penalty

B.
Public folders location and deleted item retention period

C.
Size of usermailbox, read penalty and RAID type

D.
Size of user mailbox, RAID type and disk speed