On 07/25/11 2:17 PM, Les Mikesell wrote: > The disk I want to add is the same size as the existing disks if > expressed in 512 byte sectors - and they have one partition taking all > of the disk space. If I add a leading offset to get the 4k alignment, > there won't be enough room for the existing partition size. you sure its that tight? different brand and model 1TB (or whatever) drives vary all over the place in actual size. generally newer ones are a hair bigger than older ones. you need at most 7 sectors to achieve 4 kilobyte alignment. -- john r pierce N 37, W 122 santa cruz ca mid-left coast