DSN-4000 Series Hardware Reference Guide
21
Appendix A Replacing and Upgrading FRUs
This appendix describes how to replace the Field Replaceable Units (FRUs) in the DSN-4000
series arrays. FRUs that can be replaced or upgraded include:
SATA and SAS Drives
Power Supply Modules
Cooling Fan Modules
Controller Module
Cache Battery Backup Module
Connecting the RS-232 Serial Port for diagnostics
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