SecurStor 16i Installation and Hardware Reference Manual
When replacing any
When removing a RAID controller module from the subsystem, ensure that your applications running on servers have been properly closed, users notified of the down time, all cached writes conducted, etc. Ensure that power has been turned off and that all precautionary measures, without exception, are adhered to. The controller board is very sensitive and can be easily damaged.
WARNING!
When inserting a removable module, take heed that DO NOT USE EXCESSIVE FORCE! Forcing or slamming a module can damage the connector pins either on the module itself or on the backplane. Gently push the module until it reaches the end of module slot. Feel the contact resistance and use slightly more force to ensure the module connectors are correctly mated. If the module comes with rejection levers or retention screws, use them to secure the module.
5.2 Replacing Controller Module Components
5.2.1 Overview
The controller module consists of the following components:
| DIMM Module | The DIMM module can be replaced when a DIMM module |
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| fails or if a larger capacity DIMM is required. |
| BBU | If the BBU has lost its ability to hold electric charge, replace it |
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| with a certified module. With the new BBU that comes with |
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| ASIC400 models, an EEPROM is implemented and that |
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| system administrators will be notified by system events when |
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| the approximate |
WARNING!
1.The BBU is
2.It is recommended to remove the BBU from the chassis before handling the controller because the BBU needs to discharge the charge built up from supporting the cache memory. If you replace a DIMM module with supplied voltage, damage may occur.