Hitachi TAGMASTORE MK-90RD011-25 - Manual (Page 53)

Hitachi Command Control Interface (CCI) User and Reference Guide 35
Secondary
PSUS
Primary
PSUS
SMPL SMPL
Secondary
PAIR
Primary
PAIR
Primary
PAIR
Secondary
PAIR
R/W
c
Pair splitting (Simplex)
R/W
d
Pair generation (No Copy)
Local
c
R/W stop
R/W
i
Pair splitting (R/W)
R/W
Server A Server B
d
Server swapping
instruction
Splitting from swapped duplex state
e
Event waiting (PAIR)
Figure 2.17 Swapping Paired Volume for Duplex Operation — Hitachi TrueCopy Only