HP XP Continuous Access Software - Manual (Page 333)

HA Failover and failback 333
• An attempt to do a takeover prior to all group volumes reaching PAIR
state (svol_copy) results in a SVOL-takeover and an EX_VOLCUR
error.
• The HA script should prompt you for a decision before attempting a
takeover in SVOL_PSUS (stale data) State 17, because it will result in
a SVOL-takeover and an EX_VOLCUR error.
Host A
SVOL
PAIR/
COPY
DC2
Host B
PVOL
PAIR/
COPY
DC1
State No.16
Host A
PVOL
PSUS
DC2
Host B
SVOL
PSUS
DC1
State No.17