EMD Storage SecurStor 16i, Installation Manual

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SecurStor 16i Installation and Hardware Reference Manual
5-2
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When replacing any hot-swappable component, caution should be taken to ensure
that the components are handled in an appropriate manner. Rough or improper
handling of components can lead to irreparable damage.
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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:
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DIMM Module The DIMM module can be replaced when a DIMM module
fails or if a larger capacity DIMM is required.
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BBU If the BBU has lost its ability to hold electric charge, replace it
with a certified module. With the new BBU that comes with
ASIC400 models, an EEPROM is implemented and that
system administrators will be notified by system events when
the approximate one-year life expectancy is reached.
WARNING!
1. The BBU is hot-swappable and can be independently swapped from the
controller. However, the BBU is installed into a metal bracket on the
controller module. When the controller is removed, the BBU is also removed.
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.