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Major Components
NOTE
Upon receiving your system, check the package contents against the included
Unpacking List. If module(s) are missing, contact your system vendor immediately.
The Cache Backup Module (CBM) is an optional feature in single controller systems.
Controller and Interface
Each controller comes with a pre-installed DIMM module.
The traditional battery backup is replaced by an innovative Cache Backup Module
methodology (CBM) which consists of a battery backup unit (BBU) and flash backup
module (FBM). Cached data is quickly distributed to a flash backup module with the
support of a BBU in the event of a power outage. With a super capacitor and flash
backup module combination cached data will be quickly distributed to a flash backup
module for permanent storage 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.
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 a storage system and serves as a building block of a scalable
configuration.
Expansion enclosures feature SAS interfaces that provide ease of cabling Mini-SAS
HD connectors. With a backplane adapting SAS connectors, the system is ideal for
adding large storage capacities to a storage pool.
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