1-2 Chapter 1: Product introduction
DS 3024U
4U systems
1.1.2 Major components
NOTE: Upon receiving the system, check the package contents and compare them to the
Unpacking List. If one or more of the modules are missing, please contact your system vendor.
Controller and interface
The system has controllers, and each controller comes with pre-installed DIMM modules. It also has a
CBM (cache backup module), a module that has a super capacitor and an FBM (ash backup module).
With the CBM, the cached data is quickly distributed to the FBM to save the data permanently with the
support of the super capacitor if power outage occurs. With the super capacitor’s fast-charging feature,
it can distribute a fair supply of power to the controller, so the controller can save cache data to the FBM
immediately and permanently.
Also, the embedded rmware features earth-friendly and smart algorithms that you can use to customize
your system’s hardware settings such as power-saving modes, variable fan speeds, and exiled drive
handling.
Expansion controller and interface
The expansion enclosure is managed by the expander controllers that distribute data ow to individual
disk drives and report the operating status through a proprietary enclosure service via in-band protocols.
The enclosure, along with other expansion systems, connects to a SAN system and serves as a building
block of a scalable conguration.
For supported protocols, the rmware supports communications with enclosure devices, SAS/SATA disk
drives, and a SAN system that features SAS expansion ports.
For physical connection, the SAS interface provides easy cabling routes via mini-SAS connectors. With
the backplane-adapting SAS or SATA drives, the system can support enterprise-class SAS, Near-line
SAS, and cost-effective SATA-II or SATA-III hard drives or SSDs. This connection is ideal for adding
large capacity storages to a storage pool.
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