old drive: Device Model: ST6000VN0041-2EL11C Serial Number: ZA18WX4T LU WWN Device Id: 5 000c50 0a47d527a Firmware Version: SC61 User Capacity: 6,001,175,126,016 bytes [6.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical 8 128 5860522584 sdi 8 129 5860521543 sdi1 new drive: Device Model: ST6000VN001-2BB186 Serial Number: ZR118A1Y LU WWN Device Id: 5 000c50 0dba1b3c0 Firmware Version: SC60 User Capacity: 6,001,175,126,016 bytes [6.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical 8 160 5860522580 sdk 8 161 5860521536 sdk1 New drive is 4 sectors shorter, so I assume I can't use it as a replacement in my md5 array because it's 4 sectors too short, or does swraid5 not need the last few sectors of a drive? Looks like formatting as MDR won't help, I'm still 4 sectors short. Thanks, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Home page: http://marc.merlins.org/ | PGP 7F55D5F27AAF9D08