HP D2200sb Storage Blade - Manual (Page 20)

Setup 20
3. Prepare the hard drive.
4. Install the hard drive.
5. Install the storage blade in the enclosure.
6. Power up the partner server blade. See the server blade documentation.
7. Determine the status of the drive from the hot-plug SAS or SATA drive LED combinations (" SAS and
SATA hard drive LED combinations " on page 7 ).
8. Configure the storage blade (" Configuration tools " on page 23 ).
Flash-backed write cache (FBWC) option
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.