Very odd. I do know that the maximum size for FAT32 is 2TB?? Was this selected at any stage as the filesystem type ? (and then upgraded to NTFS?) ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Jose Medeiros Sent: 29 June 2006 06:11 To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] NTFS ( 16 Exabyte's ) From: Medeiros, Jose Sent: Wednesday, June 28, 2006 7:22 PM To: ActiveDir@xxxxxxxxxxxxxxxxxx <mailto:ActiveDir@xxxxxxxxxxxxxxxxxx> Subject: NTFS ( 16 Exabyte's ) Greetings, Quick question. I just finished building two new 2003 servers running Microsoft Clustering services and presented two 2047 Gigabyte LUNS to each cluster node. However the OS is only seeing 1.99 Terabytes (Please see my screen capture). I specifically recall from my Microsoft NT 3.51 server class taught by Michael Van Dercreek at Technology Education Centers back in 1996 using official MOC, that NTFS is a 64 bit file system ( 2 to the 64th power = 16 Exabytes ). 16 Exabyte's is the largest partition available on NT 3.51, however I do not seem to recall if this has been changed in 2003, since I have only taken a course on Active Directory 2003, Exchange 2003, SQL 2005 and ISA 2004. So why I am only seeing 1.99 TB on a 2.47 TB LUN? Is any one else running a larger LUN size using NTFS? Any issues or corruption of the MFT that I should know about? My apologies in advance for the newbie question ( I really should know this answer ). Sincerely, Jose Medeiros Storage Area Network Systems Engineer MCP+I, MCSE, NT4 MCT 408-765-0437 Direct, 408-449-6621 Cell "Anyone who has never made a mistake has never tried anything new." Albert Einstein Any prices quoted or services described are subject to our standard terms and conditions of business. LEGAL NOTICE This email and any files transmitted with it areconfidential and intended solely for the use of the individual orentity to whom they are addressed. If you have received this email in error please notify the originator of the message. This footer also confirms that this email message has been scanned for the presence of computer viruses.Any views expressed in this message are those of the individual sender, except where the sender specifies and with authority, states them to be the views of PFH Computers.Virus and Content Scanning of this message is performed by Blackspider.