Texas Memory Systems RamSam-210 user manual Hot Swap Components, Hot Swapping Power Supplies

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Chapter 5– Hot Swap Components

One of the main features of the RamSan-210 is the ability to hot swap many of the system components. The power supplies, fans and disk drives can all be hot swapped; meaning that these components can be removed and replacement components reinserted while the system is running.

5.1Hot Swapping Power Supplies

The RamSan-210 includes two power supplies. The system only requires one functioning power supply to run. Texas Memory Systems has taken special care to enclose the RamSan-210 power supplies in a protective case in order to minimize the electrical risks for users. It is critical, however, that users follow the following steps when removing and replacing the power supplies:

Warning:

The power supply modules maintain high voltage levels during normal operation. To prevent the risk of electrical shock, remove the power cord and wait 15 seconds before removing a power supply module.

Disconnect the power cord from the power supply that needs to be replaced.

Wait 15 seconds.

Remove the power supply from the RamSan-210 chassis by pressing the release switch and pulling squarely on the power supply handle. DO NOT REACH

INSIDE THE PROTECTIVE ENCLOSURE AFTER REMOVING THE POWER SUPPLY.

Insert the replacement power supply in the RamSan-210 chassis. Make sure to insert the power supply squarely and press firmly until the power supply is fully inserted into the system.

The new power supply will begin to operate within a couple of seconds.

Important:

The power supply modules are linked to the batteries. If a power supply module is removed, the battery that feeds it will not provide power to the system. In other words, the batteries only work when attached to a functional power supply. Never simultaneously remove both power supplies while the system is running. The system will cease operation.

Important:

Failed power supplies should be replaced as soon as possible.

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Contents Texas Memory SYSTEMS, INC Page Table of Contents Reset Status Figures Conventions PrefaceDocument Overview System Components IntroductionOverview Power Requirements Non-VolatilityPage Electro-Static Discharge Warning InstallationBattery Warning System InspectionRamSan-210 Layout Rack Mounting Connecting the Fibre Channel PortsConnecting the Power Supplies On switch Low Voltage Battery Turning on the System System InitializationUsing the Front Panel RamSan-210 Front PanelEthernet Setup Menu System LayoutManual Shutdown System Monitoring Page Connecting using telnet Connecting to the MCPConnecting using a terminal program Management Control Port MCPHelp MCP CommandsExit Page Lunconfig ManageReboot ResetStatus Hot Swapping Power Supplies Hot Swap ComponentsHot Swapping Disk Drives Hot Swapping FansPage Batteries Troubleshooting Warranty SpecificationsPhysical Characteristics Operating EnvironmentAppendix a RamSan-210 Replacement Parts Figure B-1 MCP31 Management Control ProcessorFigure B-3 PWR21 Power Supply Module Figure B-6 TDD21 18 gigabyte replacement hard drive