Hitachi 9900 V Series User Manual

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PRELIMINARY RELEASE 
 
Hitachi Lightning 9900™ V Series LUN Expansion and Virtual LVI/LUN User’s Guide 
51 
copy operations between 9900V subsystems in different locations for data 
backup and disaster recovery purposes. 
UCB 
unit control block 
User account 
list 
The user account list includes user information such as user ID, password, 
and write permission for each 9900V option. 
VLL 
Virtual LVI/ LUN is an option that enables you to configure custom-size 
logical device images and logical units, which are smaller than standard-
size devices. 
Volser volume 
serial 
number 
(mainframe volume identifier, not related to the 
LDEV ID) 
Remote 
Console 
The Remote Console communicates directly with the service processor 
(SVP) of each attached subsystem to obtain subsystem configuration and 
status information and send user-requested commands to the subsystem. 
WWN 
Worldwide Name is a unique identifier for a particular open-system host 
bus adapter, consisting of a 64-bit physical address (the IEEE 48-bit format 
with 12-bit extension and 4-bit prefix).