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Enumerate all AD users sorted by OU -  http://vbscriptblog.com/vbscript/active-directory/ou/active-directory-vbscript-to-enumerate-all-active-directory-users-sorted-by-ou/ ' *** Turn off recipient policy updates            objUser.Put "msexchpoliciesexcluded", "{26491CFC-9E50-4857-861B-0CB8DF22B5D7}"       objUser.SetInfo  http://www.visualbasicscript.com/Replace-the-Primary-mail-address-in-AD-m48670.aspx Script to manage AD users -  http://www.activxperts.com/activmonitor/windowsmanagement/adminscripts/usersgroups/users/#AddPhone.htm Exchange Mailbox Statistics Report -  http://martin77s.wordpress.com/tag/vbscript/

 (with the answer typically converted to  MegabytesPerSec ) Some ballpark numbers: Device Type IOPS Interface Notes 7,200  rpm   SATA  drives HDD ~75-100 IOPS [2] SATA 3  Gb/s 10,000 rpm SATA drives HDD ~125-150 IOPS [2] SATA 3 Gbit/s 10,000 rpm  SAS  drives HDD ~140 IOPS  [2] SAS 15,000 rpm  SAS  drives HDD ~175-210 IOPS  [2] SAS Solid State Devices ranges 60,000 to 400,000 IOPS depending the type of brand/model and connectivity (SATA cable (3g/6g), FC/InfiniBand, or PCIe).  Info from - http://en.wikipedia.org/wiki/IOPS As of Jul 2012, the SSD max throughput is still below 600MBps for SSD and 1GBps using PCIe technology. SATA cable can transfer max 6Gbps (or 768MBps - 6Gbps/6bit). With PCIe, this can double to 16Gbps (or 2048MBps). There is a need to seriously look into the storage design how the disk should be connected (SATA cable or PCIe) for optimum performance. Or else, you would buy an expensive SSD which will be underperformed due to the throughput.  SSD - http