7,200 RPM not 72,000. -----Original Message----- From: Tee Darling [mailto:tee.darling77@xxxxxxxxx] Sent: Friday, January 21, 2005 11:40 AM To: [ExchangeList] Subject: [exchangelist] Re: Moving to Exchange for the first time http://www.MSExchange.org/ Danny, Since when did they stop making 72, 000 RPM SCSI disks? I am not aware of this information but if you can point me to the site that contains this information I would appreciate it. And also, what is the difference between what I said about the RAID level 1 and 5 for transaction logs and the databases and the links you have showed here? Let's here from you..... T