Hitachi VSP G400 User Guide

The following table lists the Thin Image tasks you can perform when sharing
a Thin Image P-VOL with a ShadowImage S-VOL.
HTI task
SI pair status
COPY(P
D)/
COPY
PAIR
COPY(S
P)/
COPY
PSUS(S
P)/
PSUS
PSUS
COPY(R
S)/
COPY
COPY(R
S-R)/
RCPY
PSU
E
Create pair No No No No Yes No No No
Store snapshot
data
N/A No No No Yes No No No
Store snapshot
data for a
consistency group
N/A No No No Yes
*
No No No
Restore pair N/A No No No Yes No No No
Delete snapshot
data
N/A Yes Yes Yes Yes Yes Yes Yes
Release pair N/A Yes Yes Yes Yes Yes Yes Yes
* The SI pair status must be "PSUS" during the period between when you create the HTI pair to
store snapshot data and when HTI starts to store snapshot data for a consistency group, and when
all of the pairs in the consistency group are split ("PSUS" status). If the SI pair status changes to a
status other than "PSUS" while HTI is storing snapshot data for the consistency group, the
snapshot data consistency cannot be guaranteed.
Legend:
Yes: You can perform the task.
No: You cannot perform the task (the command is rejected).
N/A: Not applicable.
Available ShadowImage tasks
The following table lists the ShadowImage tasks you can perform when
sharing a Thin Image P-VOL with a ShadowImage P-VOL.
SI task
HTI pair status
COPY PAIR, PFUL
PSUS,
PFUS
SMPL(PD) RCPY PSUE
Create pair Yes Yes Yes Yes No Yes
Create and split pair Yes Yes Yes Yes No Yes
Split pair Yes Yes Yes Yes No Yes
Normal Copy Yes Yes Yes Yes No Yes
Reverse Copy Yes Yes Yes Yes No Yes
Quick Restore No No No No No No
Suspend replication Yes Yes Yes Yes Yes Yes
Delete pair Yes Yes Yes Yes Yes Yes
Legend:
Yes: You can perform the task.
48 Overview of Thin Image
Hitachi Thin Image User Guide for Hitachi Virtual Storage Platform G Series and F Series

Hitachi VSP G400 Specifications

General

Brand	Hitachi
Model	VSP G400
Category	Storage
Language	English