Storage Device Requirements
Depending on whether you want to run Server Diagnostics EFI, Server Diagnostics
Mac OS X, or both, you need empty volumes on the server or on a portable storage
device.
If you want to run Server Diagnostics Mac OS X, the storage device must use the
GUID Partition Table partition scheme. If you’re running only Server Diagnostics EFI on
the storage device, you don’t need to use the GUID Partition Table partition scheme.
You can run both versions of Server Diagnostics by having two empty volumes on the
same server or portable storage device. You need at least one of the following:
In order to
You need
Run Server Diagnostics EFI
A volume on the server that has at least 30 MB
free, but doesn’t have Mac OS X or Mac OS X
Server installed
Run Server Diagnostics Mac OS X
An empty volume on the server with at least
10 GB free, which will be be used for a dedicated
Mac OS X Server installation
Test multiple servers and run Server Diagnostics
EFI
A USB 2.0 flash drive, or USB 2.0 or FireWire hard
drive with a volume that has at least 30 MB free
but doesn’t have Mac OS X or Mac OS X Server
installed
Test multiple servers and run Server Diagnostics
Mac OS X
A USB 2.0 or FireWire hard drive that has an
empty volume with at least 10 GB free