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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, please contact your system vendor
immediately.
The Cache Backup Module (CBM) is an optional feature in single controller systems.
RAID Controller and Interface
Each RAID controller comes with pre-installed DIMM module(s).
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. Because of a shorter discharge
time, BBU life expectancy is extended, and data is safely kept in flash regardless of
the traditional 72 hours limitation. The super capacitor and flash backup module
combination can further preserve cache data beyond 72 hours.
The embedded firmware features intelligent algorithms, such as power-saving
modes, variable fan speeds, and exiled drive handling, making this model a greener
choice.
JBOD 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 JBODs, connects to a
RAID system and serves as a building block of a scalable configuration.
In terms of supported protocols, the firmware supports communications with
enclosure devices, SAS/SATA disk drives and as RAID system featuring 12Gbps
SAS expansion ports.
In terms of physical connection, the SAS interface provides ease of cabling through
Mini-SAS connectors. 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, and is ideal for adding large capacity to a storage pool.
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