HPE ProLiant SL270s Gen8, User Manual

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Hardware options installation 40
3.
Install the drive.
4.
Determine the status of the drive from the drive LEDs (" Hot-plug drive LED definitions " on page 13 ).
Controller options
The server ships with HPE Smart Array H220i Controller. For more information about the storage
controller and its features, select the relevant controller user documentation on the Hewlett Packard
Enterprise website ( http://www.hpe.com/support/SAC_UG_ProLiantServers_en ).
To configure arrays, see the user guide for Smart Array Controllers on the Hewlett Packard Enterprise
website ( http://www.hpe.com/support/CASAC_RG_en ).
Upgrade options exist for the integrated array controller. For a list of supported options, see the
QuickSpecs on the Hewlett Packard Enterprise website ( http://www.hpe.com/info/qs ).
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 charges fully in about 5 minutes. In the event of a system power failure, 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.
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 battery pack while an array capacity expansion, RAID level migration, or stripe size
migration is in progress.
CAUTION: After the server is powered down, wait 15 seconds and then check the amber
LED before unplugging the cable from the cache module. If the amber LED blinks after 15
seconds, do not remove the cable from the cache module. The cache module is backing up
data, and data is lost if the cable is detached.
IMPORTANT: The battery pack might have a low charge when installed. In this case, a
POST error message is displayed when the server is powered up, indicating that the battery
pack is temporarily disabled. No action is necessary on your part. The internal circuitry
automatically recharges the batteries and enables the battery pack. This process might take up
to four hours. During this time, the cache module functions properly, but without the
performance advantage of the battery pack.