User guide

The following tables list the relationship between pair tasks and status.
BC/SS pair statusFS task
PSUECOPY(RS-R)
/RCPY
COPY(RS)
/COPY
PSUSPSUS(SP)
/PSUS
COPY(SP)
/COPY
PAIRCOPY(PD)
/COPY
YesNoYesYesYesYesYesYesCreate pair
YesNoYesYesYesYesYesYesStore snapshot data
YesNoNoYesNoNoNoNoRestore pair
YesYesYesYesYesYesYesYesDelete snapshot
data
YesYesYesYesYesYesYesYesRelease pair
Legend
Yes: You can perform the task
No: You cannot perform the task (the command is rejected)
BC/SS pair statusFS task
PSUECOPY(RS-R)
/RCPY
COPY(RS)
/COPY
PSUSPSUS(SP)
/PSUS
COPY(SP)
/COPY
PAIRCOPY(PD)
/COPY
NoNoNoYesNoNoNoNoCreate pair
NoNoNoYesNoNoNoN/AStore snapshot data
NoNoNoYes*NoNoNoN/AStore snapshot data
for a consistency
group
NoNoNoYesNoNoNoN/ARestore pair
YesYesYesYesYesYesYesN/ADelete snapshot
data
YesYesYesYesYesYesYesN/ARelease pair
* The BC/SS pair status must be “PSUS” during the period between when FS starts to store snapshot data for a
consistency group and when the status of all pairs in the consistency group changes to “PSUS”. If the BC/SS pair
status changes to a status other than “PSUS” when you are storing snapshot data for the consistency group, the snapshot
data consistency is not guaranteed.
Legend
Yes: You can perform the task
No: You cannot perform the task (the command is rejected)
N/A: Not applicable
The following is a list of the BC tasks that you can perform when you share an FS P-VOL with an
BC P-VOL.
FS pair statusBC/SS task
PSUERCPYSMPL(PD)PSUS,
PFUS
PAIR,
PFUL
COPY
YesNoYesYesYesYesCreate pair
YesNoYesYesYesYesCreate and split pair
YesNoYesYesYesYesSplit pair
20 Overview of Fast Snap