Non-Supported UPS Configurations
This section identifies non-supported UPS configurations and explains why those configurations
are not supported. It also explains what you must do to prevent data loss.
CAUTION: When disk drive write caching is enabled in the NonStop i system, do not use any
of these non-supported UPS configurations. They might result in data loss.
• “NonStop i System With a Data Center UPS, Single Power Rail” (page 69)
• “NonStop i System With Data Center UPS, Both Power Rails” (page 70)
• “NonStop i System With Rack-Mounted UPS and Data Center UPS in Parallel” (page 72)
• “NonStop i System With Two Rack-Mounted UPS in Parallel” (page 74)
• “NonStop i System with Cascading Rack-Mounted UPS and Data Center UPS” (page 75)
68 UPS and Data Center Power Configurations
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