I am trying to establish an NSS pool on an external USB drive in order to test AFP. I have AFP running on the server in question, and have connected the USB drive to it, and see it in the devices section of iManager. I have initialized the drive in question, but when I go to create an NSS pool, I get the error "The selected segment is not available. Select pool segments from free space on an unpartitioned device or an EVMS-managed device."

Do I need to take any special steps to prepare the drive, or change any permissions on the drive before I can create it? Also, my eventual implementation will be to create a virtual OES server with two virtual hard drives, one for the SLES system and the other simply for storage, will I run into similar problems with this approach? Are there any succinct documents available on establishing storage pools that anyone knows of?