HP StorageWorks P9000 - Disk Arrays Reference Manual page 199

HORCM_MON A section of the RAID Manager instance configuration file that describes the host name or IP
address, the port number, and the paired volume error monitoring interval of the local host.
instance A running copy of RAID Manager. Instances can be local or remote. Multiple instances can run
on the same host.
instance A RAID Manager file that defines the link between a volume and a RAID Manager instance. This
configuration file file consists of five sections: HORCM_MON, HORCM_CMD, HORCM_DEV, HORCM_LDEV, and
HORCM_INST.
local instance The RAID Manager instance currently being configured or the instance to which commands are
issued.
LUN Logical unit number.
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 Master control unit.
MU Mirror unit.
OPEN- x
A general term describing any one of the supported OPEN emulation modes (for example,
OPEN-E. There are two types of OPEN-x devices: legacy OPEN-x devices with a fixed size (such
as, OPEN-3, OPEN-8, OPEN-9, OPEN-E), and OPEN-V, which has a variable size and is a CVS
based volume.
P-VOL Primary volume.
parity group A set of hard disk drives that have the same capacity and that are treated as one group. A parity
group contains both user data and parity information, which enables user data to be accessed
if one or more drives in the group is not available.
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.
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 as well as other port types. Ports are named by port group and port letter, such as CL1-A.
CL1 is the group, and A is the port letter.
PSUE Pair suspended-error.
PSUS Pair suspended-split.
RAID level A RAID level is one of the ways that disk drives are grouped together to improve performance,
data availability/reliability, or both. RAID levels are defined from RAID0 to RAID6. HP
StorageWorks Disk Arrays in the P9000 and XP product family support RAID1, RAID5 and RAID6.
Not all of these RAID levels are supported by all P9000 and XP family members. Consult the
owner's guide or your HP representative for the details about which RAID levels are supported
by your specific P9000 or XP disk array.
RAID Manager The CLI configuration and replication tool for the P9000 or XP disk array that can be used by
system administrators to enter RAID Manager commands from open-system hosts to perform
TrueCopy, ShadowImage, Data Integrity Check operations, and 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.
RIO Remote I/O.
S-VOL Secondary or remote volume. The copy volume that receives the data from the primary volume.
SCP State-change-pending.
SIM Service information message.
SMPL Simplex.
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