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It is not recommended to use multi-initiator parallel SCSI bus. It is also difficult to achieve a data rates above 80MB/sec. with the use of standard SCSI adapters. The use of multi-initiator requires Y-cable and external terminators to make sure the SCSI bus terminates properly even when one of the cluster node disconnected at either end. For single-initiator parallel SCSI buses, it requires the storage device has a multi-port backplane, or fibre channel connection are required. Multi-port single-initiator SCSI can use internal termination provided by the host bus adapter which is much easy to setup, tests also shows it can easily achieve data rate above 80MB/sec. . Therefore, single-single initiator SCSI or fibre-channel storage are recommended for cluster storage.