If the data is not important to you look to see if there is information on sectors 1 to 63 on the hard drives. This could be the reason. Also, there is information put on the back of the drives as well. Lastly, Some Raid controllers put the info in the Firmware.
If the RAID info is in the firmware only way to do it is use the RAID controller and set them up as JBOD. Tim Lider Sr. Data Recovery Specialist Advanced Data Solutions, LLC http://www.adv-data.com -----Original Message----- From: hardware-boun...@hardwaregroup.com [mailto:hardware-boun...@hardwaregroup.com] On Behalf Of Mail List Sent: Monday, June 15, 2009 2:26 PM To: hardware@hardwaregroup.com Subject: [H] Hard Drive "remembers" it use to be a RAID0 member I recently assembled a new system using hard drives from the previous system. They are 2 WD Black 1TB drives I HAD set up as RAID0 boot array. I re-installed them as individual drives under the IDE selection in the BIOS (the motherboard is a P6T6 WS Revolution). They show up and work fine. I deleted the partition, set up a new simple volume and did a simple format on each. They show up and/or work fine in the BIOS, Computer, and Disk Management. I set up the new boot array (on different drives) and installed windows vista 64 ultimate. I then switched the BIOS from IDE to AHCI. When I boot the system, the 2 drives that appear as separate 1TB drives when designated as IDE, become a single 2TB drive that "requires format," (i.e., the drive appears blank and unusable) under AHCI. In Disk Management, it appears as a single drive with a small partition, a large partition, another small partition, and another large partition. When in IDE mode, no small partitions are visible. It appears that the two drives somehow "remember" they were a RAID0 pair and nothing I do seems to completely remove the data creating this problem. Anyone have any ideas how to split this pair up to be 2 separate drives when configured as AHCI. Second question--I thought that AHCI in the ICH10R would allow hot swap-safe removal of a hard drive. I even installed the Intel Matrix Storage Manager but have not been able to safely remove a hard drive (the option is NOT available). The motherboard also has a pair of Marvel eSATA ports that also do not seem to be hot swap/safe removal capable. I ended up installing a JMicron pcie card that enables hot swap. Any insight into these two issues? Thanks, Jim Maki jwm_maill...@comcast.net