Defines the command set extensions to facilitate operation of SCSI-3 storage array devices. The clause(s) of this standard pertaining to the SCSI-3 storage array device class, implemented in conjunction with the applicable clauses within any of the SCSI-3 commancd standards, shall specify the standard command set available for SCSI-3 storage arrays. The objectives of this standard are to provide the a) Transfer commancds unique to SCSI-3 Controller Command devices; b) Control commands to manage the operation of an SCSI-3 Controller Command device; and c) Optical device mapping and pass-through support. This standard was first listed in the March 31, 1995 issue of Standards Action. It is being resubmitted due to substantive changes to the text.