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Hardware options installation 39
16.
Connect each power cord to the power source.
17. Power up the server (on page 18).
Controller options
The server ships with an embedded Smart Array B120i controller. For more information about the controller
and its features, see the HP Dynamic Smart Array RAID Controller User Guide on the HP website
(http://www.hp.com/support/DSA_RAID_UG_en).
To configure arrays, see the Configuring Arrays on HP Smart Array Controllers Reference Guide on the HP
website (http://www.hp.com/support/CASAC_RG_en).
Upgrade options exist for the integrated array controller. For a list of supported options, see the QuickSpecs
on the HP website (http://www.hp.com/support).
The server supports FBWC. FBWC consists of a cache module and a capacitor pack. The DDR cache module
buffers and stores data being written by the controller. When the system is powered on, the capacitor pack
fully charges in approximately 5 minutes. If a system power failure occurs, a fully charged capacitor pack
provides power for up to 80 seconds. During that interval, the controller transfers the cached data from DDR
memory to flash memory, where the data remains indefinitely or until a controller retrieves the data.
The data protection and the time limit also apply if a power outage occurs. When power is restored to the
system, an initialization process writes the preserved data to the storage drives.
CAUTION: The cache module connector does not use the industry-standard DDR3 mini-DIMM
pinout. Do not use the controller with cache modules designed for other controller models,
because the controller can malfunction and you can lose data. Also, do not transfer this cache
module to an unsupported controller model, because you can lose data.
CAUTION: To prevent a server malfunction or damage to the equipment, do not add or remove
the capacitor pack while an array capacity expansion, RAID level migration, or stripe size
migration is in progress.
CAUTION:
After the server is powered down, wait for 30 seconds, and then check the amber LED
before unplugging the cable from the cache module. If the amber LED flashes after 30 seconds,
do not remove the cable from the cache module. The cache module is backing up data. Data will
be lost if the cable is detached when the amber LED is still flashing.
IMPORTANT: The capacitor pack might have a low charge when installed. If the pack does have
low charge a POST error message appears when the server is powered up, indicating that the
capacitor pack is temporarily disabled. No action is necessary. The internal circuitry
automatically recharges the capacitors and enables the capacitor pack. This process might take
up to 4 hours. During this time, the cache module functions properly but without the performance
advantage of the capacitor pack.
Installing a storage controller
IMPORTANT: For additional installation and configuration information, refer to the
documentation that ships with the option.
To install the component:
1. Power down the server (on page 18).