HP XP Continuous Access Software - Manual (Page 66)

66 HP StorageWorks Disk Array XP RAID Manager: User’s Guide
Paired SnapShot volume status definitions
Each pair of SnapShot volumes consists of a primary volume (P-VOL) and
secondary volume (S-VOL) which is actually a virtual volume (V-VOL).
Each volume maintains its own pair status.
The supported volume type is OPEN-V only for the P-VOL, and OPEN-0V
for the S-VOL.
The major SnapShot pair statuses are:
• SMPL
• PAIR
• COPY
• RCPY
• PSUS
• PSUE
The P-VOL controls the pair state that is typically reflected in the status of
the S-VOL. The status can be changed when a RM command is issued. A
read or write request from the host is allowed or rejected according to the
status, as shown in the following figure.