Business Copy Pair Status For Reclaiming Zero Pages; Continuous Access Synchronous - HP XP7 User Manual

Product name (Guide name)
Auto LUN (HP XP7 Auto LUN User
Guide)
(For details, contact HP technical
support.)
Volume Shredder (HP XP7 Volume
Shredder for Open and Mainframe
Systems User Guide)

Business Copy pair status for reclaiming zero pages

You can use this table to determine whether reclaiming zero pages is possible for a particular pair
status
Pair status
SMPL, status of an unpaired
volume
COPY(PD)/COPY
PAIR
COPY(SP)
PSUS(SP)/PSUS
PSUS
COPY(RS)/COPY
COPY(RS-R)/RCPY
PSUE

Continuous Access Synchronous

You can use Thin Provisioning or Smart Tiers in combination with Continuous Access Synchronous
to replicate V-VOLs. The following figure illustrates the interaction when the Continuous Access
Synchronous primary volume and secondary volume are also V-VOLs.
70 Configuring thin provisioning
Permitted
Using a THP V-VOL as a migration
source or a migration target.
Use on THP V-VOLs.
Reclaim zero pages from Remote Web
Console
Enabled
Disabled
Disabled
Disabled
Disabled
Enabled
Disabled
Disabled
Disabled
Not permitted
Using on pool-VOLs.
Increasing the capacity of THP
V-VOL used by Auto LUN.
Reclaiming zero pages of V-VOL
used by Auto LUN.
Using on pool-VOLs.
Increasing the capacity of THP
V-VOL used by Volume Shredder.
Reclaiming zero pages of V-VOL
used by Volume Shredder.
Reclaim zero pages from RAID Manager
Enabled
Disabled
Disabled
Disabled
Disabled
Enabled
Disabled
Disabled
Disabled