HP XP Continuous Access Software - Manual (Page 223)

NOTE:
To power off the primary and secondary arrays at the same time, see When powering off primary and
secondary arrays at the same time .
NOTE:
If you turn the power off without changing the status of all data volume pairs to PSUS, and then you turn
the power back on, the status of all data volume pairs could be suspended according to a failure
When powering off primary and secondary arrays at the same time
To power off the primary and secondary arrays at the same time, you must power off the primary array
before powering off the secondary array. To power on the primary and secondary arrays again, you
must power on the secondary array before powering on the primary array.
1. Split data volume pairs that are affected by powering off the primary and secondary arrays. For
example, if two primary arrays and one secondary array are connected to each other and you want
to power off one of the primary arrays and the secondary array, split data volume pairs defined
between the remaining one primary array and primary array, because these data volume pairs are
affected by powering off of the arrays.
2. After splitting the pairs finishes, confirm that the status of all pairs is changed to PSUS at the primary
array.
3. Power off the primary array as described in When powering off primary arrays . Do not power on
the primary array yet.
4. Power off the secondary array as described in When powering off secondary arrays .
5. Power on the secondary array.
6. If the secondary array is ready to resume remote copy operations, power on the primary array.
7. If the primary array is ready to resume remote copy operations, resume data volume pairs that were
split at the primary array. Confirm that the status of data volume pairs changed to COPY or PAIR.
When powering off network relay devices
To power off a network relay device during remote copy operations, first ensure that all data volume pairs
or mirrors (that is, pairs of journal groups) are split and the status of all data volume pairs is PSUS.
If data volume pairs are split and the network relay device is powered off as mentioned above, use the
following procedure to resume remote copy operations:
1. Power on the network relay device.
2. If the network relay device is ready for remote copy operations, restore data volume pairs that were
split, and confirm that the status of data volume pairs is COPY or PAIR. This operation must be
performed at the primary site.
Continuous Access XP Journal user guide 223