You are planning the storage requirements for an Exchange Server 2003. The server supports
750 users in a single Exchange Storage Group (ESG) with five databases. You need to calculate
the capacity required for the ESG. The customer has indicated that the average user mailbox will
be 125MB. The anticipated growth is expected to be 20%. What other factors need to be
considered to calculate the required capacity?

A.
Public Folders location and deleted item retention period

B.
Read/Write ratio and write penalty

C.
Size of PST, RAID type and disk speed

D.
Log Size, read penalty and RAID type