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
Recovering from Hard Drive Failure
185Modular SAN Array 1000 User Guide
Recognizing Drive Failure
The indicators on the front of each hard drive are visible through the front of the
external storage unit. When a drive is configured as a part of an array and attached
to a powered-on Controller, the status of the drive can be determined from the
illumination pattern of these indicators.
Figure 69 and its associated table define the three indicators on the hard drive.
For detailed descriptions of the various indicator combinations, refer to the “Hard
Drives” section in the “Operation and Management” chapter.
Figure 69: Hard drive indicators
Item Description
1 Environmental Monitoring Unit (EMU)
2 Power
3 Fault
1
2
3
230941-005_MSA1000_UG.book Page 185 Thursday, April 17, 2003 5:53 PM