Hewlett Packard Enterprise HPE XP7, User Manual, Page: 84 / 311

Pair operations when pairs are cascaded on page 72
Pair operations when a P-VOL is shared by multiple S-VOLs on page 84
Data recovery and backup differences between Fast Snap and Business Copy on page 85
Fast Snap cache management device requirements on page 68
Pair operations when a P-VOL is shared by multiple S-VOLs
The following table explains pair operations according to the pair status.
Pair type Pair
status of
other S-
VOLs
Operation for the target S-VOL
Pair with snapshot attribute Pair with clone
attribute Snapshot
/ clone
attribute
common
Create Split Resync Restore Create Split Delete
With the
snapshot
attribute COPY(PD
) Y Y Y Y Y Y Y
PAIR Y Y Y Y Y Y Y
PSUS Y Y Y Y Y Y Y
COPY(RS
) Y Y Y Y Y Y Y
COPY(RS
-R) Y N Y N Y N Y
PSUE N Y Y Y N Y Y
SMPL(PD
) Y Y Y Y Y Y Y
With the
clone
attribute COPY(PD
) Y Y Y Y Y Y Y
PAIR Y Y Y Y Y Y Y
PSUS(SP
) Y Y Y Y Y Y Y
PSUE N Y Y Y N Y Y
SMPL(PD
) Y Y Y Y Y Y Y
Y: Operation successful.
N: Process terminated abnormally.
More information
Calculating the number of Fast Snap pairs based on pair tables on page 64
Calculating Fast Snap pairs based on the snapshot estimated manageable capacity on page 64
Calculating Fast Snap pairs based on cache management devices on page 65
Calculating the number of cache management devices on page 66
Calculating the Fast Snap pair capacity for THP pools on page 66
Calculating and assigning pool capacity on page 69
84 Pair operations when a P-VOL is shared by multiple S-VOLs