Apple has released Xserve Remote Diagnostics 1.0 which includes:
– the “xrdiags” command line tool
– the ‘man’ page for “xrdiags”
– standard (quick.tdf, extended.tdf) test files for “xrdiags”
– the hardware test components for Xserve Remote Diagnostics
According to Apple’s notes, “This software will only install onto Mac OS X client version 10.3 and later boot volumes, or onto Mac OS X Server version 10.3.3 or later boot volumes. If installing onto a Mac OS X Server boot volume, you must first configure the server for NetBoot before installing this software. Only Xserve G5 computers can NetBoot the installed software.”
More info and download link here.