When you power off primary disk arrays, When you power off secondary disk arrays – HP StorageWorks XP Remote Web Console Software User Manual
Page 144
144 Continuous Access XP Journal
When you power off primary disk arrays
To power off the primary disk array 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.
CAUTION:
To power off the primary disk array, contact your HP account support representative and ask
them to power off the disk array.
If data volume pairs are split and the primary disk array is powered off as mentioned above, use the
following procedure to resume remote copy operations:
1.
Power on the primary disk array.
2.
If the primary disk array is ready to resume remote copy operations, restore data volume pairs that
were split, and confirm that the status of the data volume pairs is COPY or PAIR. This operation must be
performed at the primary site.
After taking these steps, remote copy operations resume. The primary disk array can respond to read
journal commands issued by the secondary disk array.
NOTE:
To power off the primary and secondary disk arrays at the same time, see ”
primary and secondary disk arrays at the same time
When you power off secondary disk arrays
To power off the secondary disk array 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.
CAUTION:
To power off the secondary disk array, contact your HP account support representative and
ask them to power off the disk array.
If data volume pairs are split and the secondary disk array is powered off as mentioned above, use the
following procedures to resume remote copy operations:
1.
Power on the secondary disk array.
2.
If the secondary disk array is ready to resume remote copy operations, restore data volume pairs that
were split, and confirm that the status of the data volume pairs is COPY or PAIR. This operation must be
performed at the primary site.
After taking these steps, remote copy operations resume. The secondary disk array can issue read journal
commands to the primary disk array.
NOTE:
To power off the primary and secondary disk arrays at the same time, see ”
primary and secondary disk arrays at the same time
When you power off primary and secondary disk arrays at the same time
To power off the primary and secondary disk arrays at the same time, the primary disk array must be
powered off before the secondary disk array is powered off. To power on the primary and secondary disk
arrays again, the secondary disk array must be powered off before the primary disk array is powered off.
1.
Split data volume pairs that are affected by powering off the primary and secondary disk arrays. For
example, if two primary disk arrays and one secondary disk arrays are connected to each other and
you want to power off one of the primary disk arrays and the secondary disk array, split data volume
pairs defined between the remaining one primary disk array and primary disk array, because these
data volume pairs are affected by powering off of the disk arrays.