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Controller options
The server ships with an embedded Smart Array B120i controller. For more information about the
controller and its features, see the HPE Dynamic Smart Array RAID Controller User Guide on the Hewlett
Packard Enterprise website (http://www.hpe.com/info/smartstorage/docs).
Upgrade options exist for an integrated array controller. For a list of supported options, see the product
QuickSpecs on the Hewlett Packard Enterprise website (http://www.hpe.com/info/qs).
To configure arrays, see the HPE Smart Storage Administrator User Guide on the Hewlett Packard
Enterprise website (http://www.hpe.com/info/smartstorage/docs).
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-DIMMs. 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
Hewlett Packard Enterprise recommends installing the storage controller option in a full-height expansion
slot for better cable routing.
For more information about product features, specifications, options, configurations, and compatibility,
see the product QuickSpecs on the Hewlett Packard Enterprise website (http://www.hpe.com/info/qs).
IMPORTANT: For additional installation and configuration information, see the
documentation that ships with the option.
To install the component:
Power down the server (on page 15).
1.
Remove all power:
2.
Disconnect each power cord from the power source.
a.
Hardware options installation 35
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