logical unit (LU)
A logical volume that is congured for use by open-systems hosts (for example, OPEN-V).
logical unit (L
U) path
The path between an open-systems host and a logical unit.
logical volume (LV)
See volume.
logical volume image (LVI)
A logical volume that is congured for use by mainframe hosts (for example, 3390-9).
LU
See logical unit (LU).
LUN
See logical unit number
LUN volume
A custom-size volume whose size is dened by the user using Virtual LUN. Also called a custom
volume (CV).
LV
logical volume
LVI
See logical volume image.
M
MF, M/F
mainframe
modify mode
The mode of operation of Device Manager - Storage Navigator that allows changes to the storage
system conguration. See also view mode.
O
OPEN-V
A logical unit (LU) of user-dened size that is formatted for use by open-systems hosts.
OPEN-x
A logical unit (LU) of xed size (for example, OPEN-3 or OPEN-9) that is used primarily for sharing
data between mainframe and open-systems hosts using Hitachi Cross-OS File Exchange.
P
P-VOL
This term is used only in the earlier version of the Device Manager - Storage Navigator GUI (still in
use) for the primary volume. See primary volume.
pair
Two logical volumes in a replication relationship in which one volume contains original data to be
copied and the other volume contains the copy of the original data. The copy operations can be
synchronous or asynchronous, and the pair volumes can be located in the same storage system (in-
system replication) or in dierent storage systems (remote replication).
Glossary
System Administrator Guide for VSP Gx00 models and VSP Fx00 models 355
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