HP XP7 Command View Advanced Edition Installation and Configuration Guide (TK981-96001, May 2014)

LDEV (logical
device)
A volume created in a storage system. See also LU.
LDKC Logical disk controller
logical group A user-defined collection of managed resources (hosts and volumes) that are
grouped according to business operations, geographic locations, or other
organizational divisions. Logical groups can be public or private:
Public logical groups are accessible by any XP7 Command View AE user.
Private logical groups are accessible only by XP7 Command View AE users
who belong to user groups that are associated with the logical group.
logical unit A volume, or LDEV, created in an open storage system, or configured for use by
an open-systems host, for example, OPEN-V. See also LDEV.
logical unit
number
A unique management number that identifies a logical unit (LU) in a storage
system. A logical unit can be an end user, a file, a disk drive, a port, a host
group that is assigned to a port, an application, or virtual partitions (or volumes)
of a RAID set.
Logical unit numbers (LUNs) are used in SCSI protocols to differentiate disk drives
in a common SCSI target device, such as a storage system. An open-systems
host uses a LUN to access a particular LU.
LU See logical unit.
LUN See logical unit number.
LUSE LUN expansion; LU size expansion
management client A computer used to operate a graphical user interface client or a command-line
interface client.
NIC Network interface card
pair status Indicates the condition of a copy pair. A pair must have a specific status for
specific operations. When a pair operation completes, the status of the pair
changes to a different status determined by the type of operation.
path A path from a storage system volume to a host group.
In this manual, the term "path" may mean a path, external path, or LUN path
without making distinctions among them.
primary volume In a volume pair, the source volume that is copied to another volume using the
volume replication functionality of a storage system. The data on the P-VOL is
duplicated synchronously or asynchronously on the secondary volume (S-VOL).
properties file A file that defines aspects of the operating environment. The operating
environment can be modified by changing the appropriate properties file.
RAID redundant array of independent disks
A collection of two or more disk drives that presents the image of a single logical
disk drive to the system. Part of the physical storage capacity is used to store
redundant information about user data stored on the remainder of the storage
capacity. In the event of a single device failure, the data can be read or
regenerated from the other disk drives.
Glossary126