Hitachi TAGMASTORE MK-90RD011-25 - Manual (Page 54)

36 Chapter 2 Overview of CCI Operations
SMPL SMPL
Primary
PAIR
Secondary
PAIR
Secondary
COPY
Primary
COPY
SMPL SMPL
Primary
PSUS
Secondary
PSUS
f
Pair splitting
(Simplex)
g
Pair generation
(No Copy)
R/W
R/W
Server A Server B
c
Pair splitting
(Simplex)
e
Event waiting (PAIR)
c
DB shutdown
d
Pair generation
(Remote)
d
DB completion notification
Figure 2.18 Restoring S-VOL for Duplex Operation (Hitachi TrueCopy Only)