HP MSA 1040 HP MSA Events Description Reference Guide (762785-001, March 2014) - Page 77

masking master volume MC Media Access Control Address metadata MIB mount network port network time protocol NTP object identifier OID orphan data Partner Firmware Update passphrase PCBA PFU PGR PHY physical layer point-to-point POST Power-On Self Test power supply unit primary volume proxy volume PSU recovery A volume-mapping setting that specifies no access to that volume by hosts. See also default mapping and explicit mapping. A volume that is enabled for snapshots and has an associated snap pool. Management Controller. A processor (located in a controller module) that is responsible for human-computer interface and computer-computer interfaces, including the WBI, CLI, and FTP interfaces, and interacts with the Storage Controller. See also EC and SC. See MAC address. Data in the first sectors of a disk drive that stores all disk-, vdisk-, and volume-specific information including vdisk membership or spare identification, vdisk ownership, volumes and snapshots in the vdisk, host mapping of volumes, and results of the last media scrub. Management Information Base. A database used for managing the entities in SNMP. To enable access to a volume from a host OS. Synonyms for this action include present and map. See also host, map/mapping, and volume. The Ethernet port on a controller module through which its Management Controller is connected to the network. See NTP. Network time protocol. See OID. Object Identifier. In SNMP, an identifier for an object in a MIB. See unwritable cache data. See PFU. A user-created password that allows users to manage lock keys in an FDE-capable system. See also FDE and lock key. Printed circuit board assembly. Partner firmware update. The automatic update of the partner controller when the user updates firmware on one controller. Persistent group reservations. One of two hardware components that form a physical connection between devices in a SAS network that enables transmission of data. See PHY. Fibre Channel Point-to-Point topology, where two ports are directly connected. Power-on self test. Tests that run immediately after a device is powered on. See POST. See PSU. The volume that is the source of data in a replication set and that can be mapped to hosts. For disaster recovery purposes, if the primary volume goes offline, a secondary volume can be designated as the primary volume. The primary volume exists in a primary vdisk in the primary (or local) storage system. A virtual volume in the local system that represents a volume in a remote system. Proxy volumes are used internally by the controllers to perform actions such as transferring replication data. Power supply unit. The power supply FRU. In an active-active configuration, recovery is the act of returning ownership of controller resources to a controller (which was offline) from its partner controller. The resources include volumes, cache data, host ID information, and LUNs and WWNs. See also failover. Glossary 77