HP 6100 HP 4x00/6x00/8x00 Enterprise Virtual Array User Guide (5697-0733, Marc - Page 175
Network Storage Controller. The HSV Controllers used by the Enterprise storage system.
View all HP 6100 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 175 highlights
M management agent management agent event mean time between failures metadata micro meter mirrored caching mirroring MTBF multi-mode fiber The HP Command View EVA software that controls and monitors the Enterprise storage system. The software can exist on more than one management server in a fabric. Each installation is a management agent. Significant occurrence to or within the management agent software, or an initialized storage cell controlled or monitored by the management agent. See MTBF. Information that a controller pair writes on the disk array. This information is used to control and monitor the array and is not readable by the host. See µm. A process in which half of each controller's write cache mirrors the companion controller's write cache. The total memory available for cached write data is reduced by half, but the level of protection is greater. The act of creating an exact copy or image of data. Mean Time Between Failures. The average time from start of use to first failure in a large population of identical systems, components, or devices. A fiber optic cable with a diameter large enough (50 microns or more) to allow multiple streams of light to travel different paths from the transmitter to the receiver. This transmission mode enables bidirectional transmissions. N Network Storage Controller node port non-OFC (Open Fibre Control) NONCRITICAL Condition NSC NVRAM See NSC. A device port that can operate on the arbitrated loop topology. A laser transceiver whose lower-intensity output does not require special open Fibre Channel mechanisms for eye protection. The Enterprise storage system transceivers are non-OFC compatible. A drive enclosure EMU condition report that occurs when one or more elements inside the enclosure have failed or are operating outside of their specifications. The failure does not affect continued normal operation of the enclosure. All devices in the enclosure continue to operate according to their specifications. The ability of the devices to operate correctly may be reduced if additional failures occur. UNRECOVERABLE and CRITICAL errors have precedence over this condition. This condition has precedence over INFORMATION condition. Early correction can prevent the loss of data. Network Storage Controller. The HSV Controllers used by the Enterprise storage system. Nonvolatile Random Access Memory. Memory whose contents are not lost when a system is turned Off or if there is a power failure. This is achieved through the use of UPS batteries or implementation technology such as flash memory. NVRAM is commonly used to store important configuration parameters. O occupancy alarm level OCP online/nearonline operator control panel A percentage of the total disk group capacity in blocks. When the number of blocks in the disk group that contain user data reaches this level, an event code is generated. The alarm level is specified by the user. Operator Control Panel. The element that displays the controller's status using indicators and an LCD. Information selection and data entry is controlled by the OCP push-button. An online drive is a normal, high-performance drive, while a near-online drive is a lower-performance drive. See OCP. 175