17
Major Components
NOTE
Upon receiving your system, check the package contents against the included
Unpacking List
. If module(s) are missing, please contact your system vendor
immediately.
Controller and Interface
Each controller comes with pre-installed DIMM module(s).
The traditional battery backup is replaced by an innovative Cache Backup Module
methodology (CBM) (3012 & 3016 models only) which consists of a super capacitor
and a flash backup module (FBM). Cached data is quickly distributed to a flash
backup module for permanent storage with the support of the super capacitor in the
event of a power outage. The advantage of a super capacitor is its very fast charging
time. The super capacitor is charged within a few minutes and available to distribute
power to the controller, so the cached data can be saved immediately and
permanently in flash backup module (FBM).
The embedded firmware features intelligent algorithms, such as power-saving
modes, variable fan speeds, and exiled drive handling, making this model a greener
choice.
Expansion Enclosure Controller and Interface
The enclosure is managed by expander controllers that distribute data flow to
individual disk drives and report operating status through a proprietary enclosure
service via in-band protocols. The enclosure, along with other expansion enclosures,
connects to the system and serves as a building block of a scalable configuration.
In terms of supported protocols, the firmware supports communications with
enclosure devices, SATA disk drives and as the system featuring SAS expansion
ports.
In terms of physical connection, the SAS interface provides ease of cabling through
the SAS 12G host board. With a backplane adapting SAS or SATA drives, the system
supports enterprise-class SAS, Near-line SAS, cost-effective SATA-II or SATA-III
hard drives or SSDs, and is ideal for adding large capacity to a storage pool.
