Using two compatible xrc pairs together – HP XP7 Storage User Manual
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3 Interoperability with other products and functions
This topic provides information about Compatible XRC interoperability with other products and
functions.
Volume sharing between Compatible XRC and other copy functions
The HP XP7 Storage system supports concurrent operations of Compatible XRC with other copy
functions. The following table indicates whether Compatible XRC volumes can be shared with other
copy functions.
Volumes of other copy functions
Compatible
XRC
volumes
FC Z
T-VOL
8
FC Z
S-VOL
7
BC Z
S-VOL
6
BC Z
P-VOL
5
Cnt Ac-S
Z
S-VOL
4
Cnt Ac-S
Z
P-VOL
3
Cnt Ac-J Z
S-VOL
2
Cnt Ac-J Z
P-VOL
1
Compatible
XRC
S-VOL
Compatible
XRC
P-VOL
No
Yes
No
Yes
10
No
Yes
No
No
Yes
9
N/A
Compatible
XRC
P-VOL
No
Yes
No
Yes
No
Yes
No
No
N/A
Yes
9
Compatible
XRC
S-VOL
Notes:
1.
Primary volume of a Cnt Ac-J Z pair.
2.
Secondary volume of a Cnt Ac-J Z pair.
3.
Primary volume of a Cnt Ac-S Z pair.
4.
Secondary volume of a Cnt Ac-S Z pair.
5.
Primary volume of a BC Z pair.
6.
Secondary volume of a BC Z pair.
7.
Source volume of a FlashCopy pair.
8.
Target volume of a FlashCopy pair.
9.
A Compatible XRCS-VOL cannot be used as an Compatible XRC P-VOL within the same Compatible XRC session, but it can
be used as an Compatible XRC P-VOL in another Compatible XRC session.
10.
When the Compatible XRC P-VOL and the BC Z are the same volume, you cannot use the Reverse Copy or Quick Restore
commands of BC Z.
Using two Compatible XRC pairs together
You can use two Compatible XRC pairs together to maintain three copies of data at multiple
secondary sites for disaster recovery purposes. The following figure shows the configuration in
which two Compatible XRC operations are performed. Data is copied from the primary site to the
first secondary site using Compatible XRC, and then the same data is copied from the first secondary
site to the second secondary site using Compatible XRC.
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Interoperability with other products and functions