Sample replication product combinations – HP XP P9500 Storage User Manual
Page 68
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When Continuous Access Journal Z is linked with Compatible FlashCopy, the following functions
might not operate correctly because the timestamp information assigned to the I/O is not
inherited:
◦
Consistency Preservation Function in a 4x4 configuration
◦
Cnt Ac-J Z ATTIME suspend function
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lists Continuous Access Synchronous Z copy group attributes which can
be set when using the Preserve Mirror function.
Table 15 Continuous Access Synchronous Z copy group attributes that can be set when using
the Preserve Mirror function
Description
Possibility of the setting
Items displayed on the Copy Group
Attributes panel
Specifies the specification of
consistency group IDs.
N
C/T ID
Specifies how to handle the P-VOL
after suspension (fence level).
Y
FENCE LVL
Specifies whether to freeze the
storage system when a failure
suspension (SUSPER) occurs.
Y
FREEZE SCP
Specifies whether to forward the
writing timestamp to the S-VOL
(timestamp transfer mode).
Y
TIMESTAMP
Specifies the differential-data
management unit.
Can be set to only TRK.
DIF UNIT
Specifies whether to use the
Open/MF Consistency Preservation
function.
N
OPEN/MF
Legend: Y: Can be set; N: Cannot be set
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Configurations cannot be created in which Continuous Access Synchronous Z copy pairs that
use the Preserve Mirror function are combined with other copy pairs.
Sample replication product combinations
Different replication products can be used concurrently for the same volume.
through
give examples of basic replication product combinations.
Figure 30 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration
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Business Continuity Manager with replication products