The VSP One Block 20 hardware terms include the factory terms and their abbreviations, which are used in hardware specifications and maintenance documents, and the nomenclature appearing in end-user documentation and nontechnical materials such as marketing collateral. The following table lists and describes the basic hardware terms for the VSP One Block 20 storage systems.
Factory term | Factory abbreviation | Nomenclature | Description |
---|---|---|---|
Controller box | CBS | Controller box | Controller module located in the controller chassis. |
Controller chassis | DKC | Controller chassis | Chassis containing the controller and ancillary components that control the storage system. |
Controller board | CTL | Controller board Controller |
Board in the controller chassis that contains the controller, cache memory, and cache flash memory. |
Cache memory | CM | Cache memory | Volatile memory in the controllers that stores user data, micro-programs, and control data. |
Cache flash memory | CFM | Cache | Non-volatile memory in the controllers that stores user data, micro-programs, and control data. |
Battery | BAT | Battery | Battery in the controller used to transfer user data and control data into cache flash memory in case of a power failure. |
Disk board | DKB | Back-end module (BEM) | Board installed in the controller chassis to connect the controller and the drive boxes. |
Channel board | CHB | Front-end module (FEM) | Board installed in the controller chassis to connect the controller and the host/SAN. VSP One B20 supports the following types of front-end modules:
|
Power supply unit | PS unit | Power supply | Power supply component that provides power to the controllers and drive boxes. Two PS units are installed in each chassis:
|
Drive box | DB | Drive box | Chassis containing drives. |
Enclosure | ENC | Enclosure | Board installed in a drive box to connect the drive box and the controller. There are 2 ENCs in each drive box. |
Backup module | BKM | Backup module | Component in the controller chassis that contains the battery for the storage system. |
DW-F2000 | DW-F2000 | -- | Basic model number for components that are specific to VSP One B20. |