Silicon Graphics InfiniteStorage 6120, User Manual

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Component Failure Recovery
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4.3 Component Failure Recovery
The InfiniteStorage 6120 contains redundant and hot-swappable power cooling modules. A single
component failure, therefore, will not shut down the system. However, in the unlikely event of
component failure, you can replace the failed component while the controller is running. The
replaced component will automatically be returned to service once the component has been installed
and booted up.
4.3.1 Replacing a Power/Cooling Module
If a power supply or fan fail, the PCM Fault LED on the power cooling module will turn amber.
If a power supply unit or its fan is faulty, you must replace the whole PCM. You must not take any
longer than five minutes to replace this module to prevent the enclosure from over-heating.
NOTE : Obtain a replacement module of the same type before removing any faulty
module.
As there should always be two (2) power cooling modules installed, the system can continue running
while you replace the faulty module.
1. Identify the failed PCM with an amber Fault LED.
2. Turn off the module’s power switch and disconnect the power cord.
3. Remove the module’s thumbscrew, then slide the module out of the bay.
4. Ensure that the power switch on the new (replacement) module is OFF.
5. Slide the module into the bay making sure it is fully inserted. Install the thumbscrew to secure it.
6. Connect the power cord. Turn on the power switch. Verify that the AC and DC LEDs are green ,
indicating that the module is operating normally.
If the InfiniteStorage 6120 is powered up and you remove any module, replace it
immediately. If the system is used with modules missing for more than a few
minutes, the system can overheat, causing power failure and data loss. Such use
will invalidate the warranty.
Observe all conventional ESD precautions when handling InfiniteStorage 6120
modules and components. Avoid contact with backplane components and
module connectors.
Warning
!
Warning
!