User guide
Table Of Contents
- MSA1000 User Guide
- Contents
- About this Guide
- Chapter 1: Introduction
- Chapter 2: Operating System Specific Information
- Chapter 3: MSA1000 Setup and Sample Configurations
- Chapter 4: Operation and Management
- Chapter 5: Array Configuration Utility (ACU)
- Installing the ACU on the Server
- Accessing the ACU
- Description of Screen Regions
- Configuring a New Controller
- Modifying an Existing Controller
- Probability of Logical Drive Failure
- Chapter 6: Command Line Interface (CLI)
- CLI Overview
- CLI Setup
- Help Commands
- Display Commands
- Array Controller Configuration Commands
- LUN Management Commands
- Server Connection Commands
- Selective Storage Presentation/Access Control List Commands
- Appendix A: Regulatory Compliance Notices
- Appendix B: Electrostatic Discharge
- Appendix C: Specifications
- Appendix D: Hard Drive Arrays
- Appendix E: Recovering from Hard Drive Failure
- Appendix F: Controller Display Messages
- Appendix G: Recovery ROM and ROM Cloning
- Appendix H: SCSI ID Assignments
- Index
Introduction
15Modular SAN Array 1000 User Guide
SCSI I/O Module with an Integrated Environmental Monitoring Unit
(EMU)
This element performs several functions, including monitoring the enclosure
operation, detecting and indicating errors, providing I/O connectors, and
displaying enclosure status.
Figure 5 is an illustration of a SCSI I/O Module with the integrated EMU.
Figure 5: SCSI I/O Module with an integrated Environmental Monitoring Unit
EMU functions include:
■ Monitoring the power supply voltages
■ Monitoring the power supply and enclosure temperatures
■ Monitoring the presence and status of hard drives
■ Detecting and reporting element changes in the enclosure and showing the
addition or removal of a hot-pluggable component
■ Controlling drive status indicators
■ Providing expansion ports for external HP StorageWorks enclosures
For more information on the EMU, including installation and removal and status
indicators, refer to the “Enclosure Status Indicators” section of the “Operation and
Management” chapter.
230941-005_MSA1000_UG.book Page 15 Thursday, April 17, 2003 5:53 PM