HP XP Continuous Access Software - Manual (Page 347)

HA Failover and failback 347
Terms:
nop-takeover No operation is done, though the takeover command is
accepted.
Volumes unconformable
A pair of volumes are not conformable to each other.
The takeover command terminates abnormally.
NG The “no good” takeover command is rejected and the
operation terminates abnormally.
PVOL-takeover Executed from the P-VOL side. Gives the P-VOL
read/write capability even if the S-VOL is unavailable
with a fence level of data or status.
SVOL-takeover Executed from the S-VOL side. Attempts to swap the
P/S designations. If unable to swap the P/S
designations, changes the SVOL to SVOL-SSUS mode.
If unable to change the SVOL to SVOL-SSUS mode,
changes the SVOL to SMPL mode to allow writes to
the volume.
swap-takeover Swaps the primary and secondary volume designations.
S-VOL
(secondary)
Status == SSWS
(After SVOL_SSUS-
takeover)
Don’t care — Nop-Takeover**
Others SMPL — Volumes unconformable
P-VOL PAIR or
PFUL Swap-Takeover*
Others SVOL-Takeover*
S-VOL — Volumes unconformable
Unknown — SVOL-Takeover*
Local node (Takeover) Remote node Takeover action
Volume attribute Fence and status
Volume
attribute P-VOL status