Recently i bought a external hardisk ( Seagate FreeAgent GoFlex Desk External Drive 3TB,USB3.0) for creating .VHD via hyper-v under windows 2008 R2. But it is fail! After finding some info, the reason is .VHD under windows 08 r2 only support Bytes Per Sector 512, but the Bytes Per Sector for my external hard disk is 4096. How to resolve it if i want to create the .VHD in this external hard disk. Thanks a lot.
closed as not a real question by Chris S♦ Feb 17 '12 at 13:51
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Start reading some books how computers work.
But generally, the vhd is a file and doesn't care what sector size your disc uses. Format the disc (sensibly - like always for 10 years for large setups a 64kb node size in NTFS is better than the default) and just use the wizard to create the VHD file.