HP XP P9500 Storage - Manual (Page 92)

LUSE 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,
to be associated with 1 to 36 LDEVs. Essentially, LUSE makes it possible for applications to access
a single large pool of storage.
MCU Main control unit.
MSCS Microsoft Cluster Service.
MU Mirror unit.
Out-of-Band
Method This method is transferring a command from the client or the server to the virtual command device
in the SVP via LAN, assigning a RAID Manager operation instruction to the DKC, and executing
it.
P-VOL Primary volume.
PA Physical address.
path A path is created by associating a port, a target, and a LUN ID with one or more LDEVs. Also
known as a LUN.
PDEV Physical device.
port A physical connection that allows data to pass between a host and the disk array. The number
of ports on a disk array depends on the number of supported I/O slots and the number of ports
available per I/O adapter. The P9000 and XP family of disk arrays supports Fibre Channel (FC)
ports and other port types. Ports are named by port group and port letter, such as CL1-A. CL1 is
the group; A is the port letter.
RAID Manager The CLI configuration and replication tool for the P9000 or XP disk array that system administrators
can use to enter RAID Manager commands from open-system hosts to perform Continuous Access,
Business Copy, Database Validator, and Data Retention operations, as well as provisioning
commands on logical devices.
RCU Remote control unit.
remote instance The instance with which the local instance communicates, as configured in the HORCM_INST
section of the RAID Manager instance configuration file.
RM HP StorageWorks RAID Manager.
S-VOL Secondary or remote volume. The copy volume that receives the data from the primary volume.
SMPL Simplex.
SVP Service processor. A computer built into a disk array. The SVP, used only by an HP service
representative, provides a direct interface to the disk array.
synchronous Describes computing models that perform tasks in chronological order without interruption. In
synchronous replication, the source waits for data to be copied at the destination before
acknowledging that it has been written at the source.
takeover The process in which a remote standby disk array takes over processing from the previously active
local disk array.
TID Target ID.
UDP User Datagram Protocol.
UID Unit identification.
volume Volume on disk. An accessible storage area on disk, either physical or virtual.
WWN World Wide Name. A unique identifier assigned to a Fibre Channel device.
92 Glossary