HP 3PAR StoreServ 7200 2-node HP 3PAR Management Console 4.3.1 User's - Page 421
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Glossary active VLUN admin space admin volume administration space alert alert pane allocation limit allocation warning availability backup system base volume cache memory page (CMP) Cage availability child volume chunklet clean chunklet cluster CMP common provisioning group (CPG) control cache controller node copy data Copy of RCIP copy size CPG template The connection of a virtual volume and a LUN for a particular host on a particular port. An active VLUN is created when a VLUN template is applied to the current system state. See also VLUN template. See snapshot administration space. The base volume that is used by the system to store administration data such as the system event log. The admin volume is created as part of the storage system installation and setup process. See snapshot administration space. A system event requiring immediate operator activity. The alert pane, located at the bottom of the HP 3PAR Management Console main window, displays information about system alerts. User-defined threshold that can be set for thinly provisioned virtual volumes (TPVVs) to cap their potential size. See also allocation warning. User-defined threshold that can be set for thinly provisioned virtual volumes (TPVVs) to alert users when they reach a certain size. See also allocation limit. Level of fault tolerance for a logical disk. For example, Magazine level availability means that the logical disk can tolerate a drive magazine failure. Cage availability level means that the logical disk can tolerate a drive cage failure. In a Remote Copy setup, the storage system on which the copied volume groups reside. Virtual volume type that forms the root of all virtual and physical snapshot functionality. Base volumes are the only type of volume that have snapshot data space and snapshot administration space used by snapshots to track changes to the base volume. See also thinly provisioned virtual volumes (TPVVs). A 16-KB block of control cache memory where I/O requests are stored. Creates a virtual volume that can tolerate a drive cage failure because its RAID sets use chunklets from different drive cages. A virtual volume (virtual or physical copy) made from a parent volume. A 256MB block of contiguous space on a physical disk. A chunklet to which no data has been written. A group of controller nodes connected via the same storage server backplane. The nodes in a cluster operate as a unified system, separate from any other clusters that may share the same service processor. See cache memory page. A set of logical disks from which you can create virtual volumes and virtual copies that are capable of allocating storage on demand. Memory modules that support the microprocessors located in a controller node. An individual device that works together with other controller nodes to cache and manage data in a storage system and to provide hosts with a coherent, virtualized view of the storage. Data that occupies the snapshot data space on a virtual volume. See also snapshot data space. Remote Copy over IP. The use of HP 3PAR Remote Copy Software with two storage servers that are connected via Ethernet ports. See also HP 3PAR Remote Copy. The size of the snapshot data space in a virtual volume, which is the amount of logical disk space reserved for snapshots. See also snapshot data space. Common provisioning group template. The template contains a set of common provisioning group and logical disk parameters that can be applied again and again to create common provisioning groups with the same characteristics using the HP 3PAR Management Console. 421