Preparing Your Site Before the System Arrives
Location Restrictions for DC Models
Determining DC Power Requirements
Important Cautions for DC Power Sources
L/R Ratio Impact on DC Power System Stability
Weight and Size Specifications for Moving and Lifting
Preparing to Install the Modular System
Gather Required Tools and Equipment
Installing the Chassis Into Your Rack
Mounting the Chassis in a Rack
Connecting To and Powering On the Modular System
Role of Oracle ILOM During Installation
Connecting Data and Management Cables
Powering On the Modular System
Log Into the CMM Through the SER MGT Port
Configure the CMM NET MGT Port With a Static IP Address
Configure the IP Addresses Using Your DHCP Server
Identify the IP and MAC Addresses
Log Into the CMM Through the NET MGT Port
Change the CMM ILOM root Account Password
Installing Shipping Brackets on a Sun Rack 1000
Understanding Oracle ILOM on the Modular System
Oracle ILOM 3.0 Features Specific to the Modular System
Logging Into and Out of CMM ILOM
Performing Common CMM ILOM Configuration Tasks
Viewing and Configuring IP and MAC Addresses
Administering the Modular System (CMM ILOM)
Managing the Chassis Using the CLI
Accessing Server Modules (CMM ILOM)
Identifying SNMP Trap and PET Event Messages
Understanding Fault Management
Monitoring Faults (Oracle ILOM)
Component Types and Service Classifications
Differences Between Chassis Models and Their Replacement Components
Determine if a Chassis Is A90-B or A90-D (CLI)
Determine if a Chassis Is A90-B or A90-D (Web Interface)
Power Off the Server Modules and Storage Modules
Power Off Components in the Chassis
Removing Power From the Chassis
Removing the Chassis From the Rack
Replacing a Front Fan Module (AC)
Replacing a Server or Storage Module
Replacing an Internal Power Cable (AC)
Returning the Modular System to Operation
Reinstalling the Chassis Into a Rack
A DC model, configured with maximum power redundancy, requires eight input power connections. Depending on the system load configuration, operation is possible on a minimum of two, three, or four, input power connections meeting the requirements in the following table.
The DC power source for the system must meet the following criteria:
-48 VDC or -60 VDC nominal DC power system
Electrically isolated from any AC power source and must meet TNV-2 requirements as defined by UL 60950-1 and IEC 60950-1
Reliably connected to earth (the battery positive bus is connected to the grounding electrode)
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1These values are the total chassis rating and maximum power for any one input.
The following specifications apply to the DC model:
Maximum chassis overhead is 490W for cooling fans and 7W for the CMM.
Each operating power supply must have at least one input (A or B) present.
When both A and B inputs are present on a power supply, the highest input voltage applies to the input voltage as shown in the previous table.
The air temperature at the chassis air intake is between -5 degrees C and +55 degrees C.
At least two power supplies must have A, B, or A and B inputs present to provide CMM power and begin system operation.
The starting voltage for the power supplies is -45 VDC +/-3 VDC.
The low voltage shutdown for the power supplies is -38.5 VDC +/-1 VDC.
The high voltage shutdown for the power supplies is above -72.5 VDC.
Factory setting for power supplies PS0 and PS1 is to default to their A input when both the A and B inputs are at -48 VDC or greater.
Factory setting for power supplies PS2 and PS3 is to default to their B input when both the A and B inputs are at -48 VDC or greater.
The default input for each power supply is user selectable through the Oracle ILOM interface. User selections are stored in the CMM and must be reset if a different CMM is installed in the system.
Total system input power is shared equally by the power supplies in operation. With both A and B inputs present for four operating power supplies, one-half of the system load is on the A inputs and one-half is on the B inputs unless the user has selected a different default setting for the power supply input switches.
The power supplies switch inputs when the voltage of the default input decreases to -46.5 VDC +/-1.5 VDC and the other input is at -48 VDC or greater.
There is no current sharing between the A and B inputs of a power supply. Only one input is active at any time.
Reversing the input voltage to a power supply input will not cause damage but the power supply will not operate.
All inputs have electronic overcurrent protection.
All positive return inputs have fuse protection with type TLS70 fuses. The fuses are part of the input power unit and are not user serviceable. The fuses prevent damage due to current between the A and B returns if there is a failure of the power supply input switch.
The A/B input switches are fully isolating so that there is no current flow between the A and B positive returns under normal operating conditions.
The power inputs are type DC-I and are isolated from the system chassis.
When input power is initially applied or restored to a chassis, the 12V output of the power supplies is automatically activated after three minutes if there is no communication from the CMM.
Inrush current at initial application of input power to each input is typically a 500A pulse lasting less than 100 microseconds.