HP XP P9500 HP P9000 Business Copy for Mainframe Systems User Guide (AV400-963 - Page 78

Glossary allocation BC BC Z CLI CLPR Cnt Ac-J Cnt Ac-J Z Cnt Ac-S Cnt Ac-S Z command device CT group CU CVS DFSMS DKA DKC emulation mode Fibre Channel HDD LDKC LUN LUSE 78 Glossary The ratio of allocated storage capacity versus total capacity as a percentage. Allocated storage refers to those logical devices (LDEVs) that have paths assigned to them. Allocated storage capacity is the sum of the storage of these LDEVs. Total capacity is the sum of the capacity of all LDEVs on the disk array. P9000 or XP Business Copy. An HP application that provides volume-level, point-in-time copies in the disk array. The version of Business Copy that supports mainframe volumes. Command-line interface. An interface comprised of various commands which are used to control operating system responses. Cache logical partition. P9000 or XP Continuous Access Journal software. The version of Continuous Access Journal that supports mainframe volumes. P9000 or XP Continuous Access Synchronous software. The version of Continuous Access Synchronous that supports mainframe volumes. A volume in the disk array that accepts Continuous Access, Business Copy, or P9000 for Business Continuity Manager control operations, which are then executed by the array. Consistency group. Control Unit. Used to organize the storage space attached to the disk controller ( DKC). You can group similarly configured logical devices (LDEVs) with unique control unit images (CUs). CUs are numbered sequentially. The disk array supports a certain number of CUs, depending on the disk array model. Each CU can manage multiple LDEVs; therefore, both the CU number and the LDEV number are required to identify an LDEV. Custom volume size. CVS devices (OPEN-x CVS or 3390-x CVS) are custom volumes configured using array management software to be smaller or larger than normal fixed-size OPEN or mainframe system volumes. Synonymous with volume size customization (VSC). OPEN-V is a CVS-based volume. Data Facility Storage Management Subsystem. Disk adapter. Disk controller. The LDEVs associated with each RAID group are assigned an emulation mode that makes them operate like OPEN system disk drives. The emulation mode determines the size of an LDEV or volume. OPEN-V: User-defined custom size 3390-3/3R: 2.838 GB 3390-9: 8.514 GB 3390-L: 27.844 GB 3390-M: 55.689 GB 3380-3 2.377 GB A data transfer architecture designed for mass storage devices and other peripheral devices that require high bandwidth. Hard disk drive. Logical disk controller. Logical unit number. A LUN results from mapping a logical unit number, port ID, and LDEV ID to a RAID group. The size of the LUN is determined by the emulation mode of the LDEV and the number of LDEVs associated with the LUN. Logical Unit Size Expansion. The LUSE feature is available when the HP StorageWorks LUN Manager product is installed, and allows a LUN, normally associated with only a single LDEV, HP Confidential