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

Operation and Management
74 Modular SAN Array 1000 User Guide
3. Install the replacement power supply by lifting up on the power supply
module latch 1 and pushing in on
the blower base 2 until the assembly is
fully
seated in the enclosure.
Figure 38: Installing the replacement power supply
4. Re-connect the AC power cord to the replacement power supply and engage
the cord lock.
Replacing Hard Drives
Caution: To replace a hot-pluggable drive, it is important to follow the
guidelines in this section. Failure to do so could result in data loss and could
void your warranty.
Drive failure is indicated by an amber Drive Failure indicator.
RAID 0 is not a fault-tolerant configuration. Never remove a drive from a RAID 0
array unless it has failed. If you are using a RAID 0 configuration, removing an
operating drive is not allowed and will result in loss of data.
To remove a working drive without losing data, the entire array must be backed
up, the drive must be replaced, and the entire array must be restored. Backing up a
single drive and replacing it will not restore the array.
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