The SBus Prestoserve NFS accelerator contains only a 1 Mbyte cache and resides on the SBus. You can add the SBus Prestoserve NFS accelerator to any SBus-based server except the SPARCserver 1000(E) system, the SPARCcenter 2000(E), or the Sun Enterprise 3x00, 4x00, 5x00, or 6x00 server systems.
Some systems on which you can add the SBus Prestoserve NFS accelerator are:
SPARCserver 5 system
SPARCserver 20 system
Sun Enterprise 1 system
Sun Enterprise 2 system
SPARCserver 600 series