R23RZ Removable Storage Disk/System

This technical manual, intended for Digital Customer Services personnel, provides comprehensive information for the maintenance, fault diagnosis, and operation of the R23RZ Removable Storage Disk/System. The R23RZ system is an enclosure (pedestal or rackmount) designed to house two Removable Storage Disks (RSDs), each consisting of an RZ Integrated Storage Disk (ISD) and a canister, allowing for data integrity while enabling disk removal. It is configurable with various DEC systems via an embedded SCSI controller.

The document is structured into several chapters covering:

• System Description: Detailing the R23RZ and its major components, including block diagrams and input/output signals.
• Checks, Adjustments, and Options: Outlining preliminary checks performed prior to repair.
• Fault Diagnosis: Explaining how to diagnose and resolve faults, including diagnostic display tables for various conditions.
• Corrective Maintenance: Listing Field Replaceable Units (FRUs) and providing instructions for their replacement.
• Operational Procedures: Describing how to use the R23RZ, including inserting/removing RSDs, mounting/dismounting, and power-up sequences for VMS and ULTRIX operating systems.
• Specifications: Providing R23RZ characteristics, electrical requirements, space requirements, and environmental specifications.
• Option Kits and SCSI Addressing Rules: Information on available kits and guidelines for SCSI device identification.