HSC V6.5 Software User Guide Update May92

This document is an update to the HSC Controller User Guide, specifically for HSC V6.5 software.

Key information and purpose of this update:

• Target Audience/Hardware: It provides updated overview information, operating procedures, and instructions for running utilities on HSC40, HSC60, HSC70, and HSC90 controllers.
• Compatibility Warning: It explicitly states that HSC V6.5 software does NOT support HSC50 controllers. Users with HSC50 controllers running older software (V3.90 or lower) are advised to retain their previous user guide chapters for those specific controllers.
• Content Replacement: The update includes replacement chapters and associated front and back matter, indicating significant revisions to existing sections of the user guide.
• Core Topics Covered (updated/replaced sections):
  • Overview: HSC controller models, cluster environment integration (host/storage connection, initialization, volume shadowing), and general HSC software information.
  • Operation: How to use the console terminal and various HSC software commands (RUN, SET, SHOW, DIRECT, PURGE, CRASH).
  • Configuration: Detailed guidance on configuring the HSC controller for optimum performance and connectivity, including discussions on Data Channel Modules (DCMs), dynamic credit management (CRMGR), and managing HSC controller saturation. A significant focus is on HSC Cache options and tools like the Cache Need Analysis Tool (CNAT) and Cache Performance Analysis Tool (CPAT) for performance analysis and tuning.
  • Utilities: Comprehensive instructions for using various HSC utilities like SETSHO (for system parameter management and reboots), BACKUP/RESTOR, DKCOPY, COPY, VERIFY, RXFMT, VTDPY (for system statistics display), and SCTSAV (for saving system configuration when installing updates).
  • Troubleshooting: Includes information on interpreting command prompt errors and various exception codes and messages related to software inconsistencies and crashes.