I recently upgraded my 1TB Terastation Live with 4 x 1.5TB Drives. There are two methods to accomplish the upgrade. Make sure to upgrade your firmware to 2.14 before you begin:
1) This method retains the existing data. You need to be very technically proficient to attempt this. I would highly suggest a backup of your data even though this method is intended to preserve your data.
These two links provide instructions. I suggest you read these instructions thoroughly and make sure you understand each step prior to attempting this:
http://forum.buffalo.nas-central.org/viewtopic.php?f=22&t=11321
http://buffalo.nas-central.org/index.php/Replacing_all_drives_in_a_Terastation_Live
2) This method is by far the easiest; but you will lose all of your existing data. This is the method that I chose since I had another Terastation Live to temporarily back up the data to. It took me less than an hour to upgrade my TS Live from 1TB raw to 6TB raw (Backup and Restore added 6-8 hours on either end). My new 6TB TS Live has been running flawlessly for a month now.
http://forums.buffalotech.com/buffalo/board/message?board.id=0101&message.id=1338&query.id=19937#M1338
Total cost for me was $268.00 for a manufacturer warranteed refurb 1TB TS Live purchased on eCost and 4 x $119.00 for the 1.5TB drives sale price from Newegg (total cost for 6TB TS Live = $744). Note that the Seagate 1.5TB drives required a firmware update prior to beginning this process. This is an issue with certain firmware versions of the Seagate drives and not relevant to this post.
Good luck! Backup, backup, backup
Message Edited by jfourman on 01-03-2009 09:07 AM