Hitachi TAGMASTORE MK-90RD011-25 - Manual (Page 85)

Hitachi Command Control Interface (CCI) User and Reference Guide 67
2.8.7.3 Issuing Commands for LDEV(s) within a LUSE Device
A LUSE device is a group of LDEVs regarded as a single logical unit. Since it is necessary to
know about the configuration of the LDEVs when issuing a command, a new command is
used. This command specifies a target LU and acquires LDEV configuration data
(see Figure 2.36).
LDEV# n
LDEV# n+1
LDEV# n+2
Command area
Special LDEV
space
Initial LBA of
command
Target LU (Port#, SCSI ID#, LU#)
Special LDEV
Figure 2.36 LUSE Device and Command Issue