Table 4.16 State Transition Table For Ha Control Script - Hitachi TAGMASTORE MK-90RD011-25 User Manual

Table 4.16 State Transition Table for HA Control Script
State Volume Attributes and Pair Status
No.
DC1(DC2) DC2(DC1)
1 SMPL SMPL
2 P-VOL
or
3
4
SVOL-
PSUS
4-1
(SSWS)
5
6
8 S-VOL
9 Unknown
10 P-VOL SMPL
11 P-VOL
12 data or S-VOL
status &
PSUE or
PDUB
Other
13 data or Unknown
status &
PSUE or
PDUB
Other
14 S-VOL SMPL
15 P-VOL
16
17
18
200 Chapter 4 Performing CCI Operations
Results Executing pairvolchk and horctakeover from DC1(DC2)
pairvolchk -s
(local volume)
COPY
PAIR/PFUL
SMPL
PSUS
or
PFUS
PSUE
SVOL-PSUS
PDUB
PVOL_XXX
COPY
PAIR/
PFUL
PSUS
PFUS
SVOL_YYY
PSUE data
pairvolchk -s -c Pair
(remote volume) Status
SMPL SMPL
PVOL_XXX XXX
EX_EVOLCE
EX_ENORMT or
EX_CMDIOE
SMPL XXX
EX_EVOLCE
SVOL_YYY XXX
EX_ENORMT or XXX
EX_CMDIOE
EX_EVOLCE
PVOL_XXX XXX
Horctakeover
result
EX_VOLCRE
Nop
EX_EVOLCE
(EX_ENORMT)
(EX_CMDIOE)
EX_VOLCRE
EX_EVOLCE
PVOL-PSUE 12
or PVOL-SMPL 8
Nop
PVOL-PSUE 13
or PVOL-SMPL 9
Nop
EX_EVOLCE
SVOL_E* 4,5
SVOL_E*
Swap 12
SVOL_E 4
SVOL 4-1
SVOL 5,6