Hp StorageWorks XP Remote Web Console Software Instrukcja Użytkownika Pobierz pdf (Strona 211)

When YouPower Offthe Primaryand SecondaryStorage Systemsatthe Same

Time

If you want to power off the primary and secondary storage systems at the same time, the primary storage

system must be powered off before the secondary storage system is powered off. If you want to power on

the primary and secondary storage systems again, the secondary storage system must be powered on

before the primary storage system is powered on.

If more than one primary and secondary storage systems are used with extended consistency groups, you

must ﬁrst power off all the primary storage systems, and then the secondary storage systems. When you

power on the primary and secondary storage systems again, you must ﬁrst power on all the secondary

storage syst

ems, and then the primary storage systems.

The followin

g is the procedure for powering off the primary and secondary storage systems at the

same time:

1. Split data volume pairs that will be affected by powering off of the primary and secondary

storage sys

tems.

For example

, if two primary storage systems and one secondary storage systems are connected to

each other

and you want to power off one of the primary storage system and the secondary storage

system, yo

u must split data volume pairs that are deﬁned between the remaining one primary

storage s

ystem and the primary storage system, because these data volume pairs will be affected by

powering

off of the storage systems.

2. After th

e splitting of the pairs ﬁnishes, conﬁrm that the status of all the pairs is changed to

Suspend at the primary storage system.

3. Power off the primary storage system as described previously. Do not power on the primary

storage system yet.

4. Power off the secondary storage system as described previously.

5. Power o

n the secondary storage system.

6. If the

secondary storage system is ready to resume remote copy operations, power on the

primary storage system.

7. If the primary storage system is ready to resume remote copy operations, resume the data

volume pairs that have been split at the primary storage system. Conﬁrm that the status of the

data volume pairs is changed to Pending or Duplex.

Once powered on or off both the primary and secondary storage system at the same time, if a status

of a data volume pair of primary storage subsystem is Suspend and a status of a data volume pair of

secondary storage subsystem is Duplex, you must suspend the data volume pair of secondary storage

system by using XP Remote Web Console. After conﬁrming that the statuses of the data volume pair of

imary storage system and secondary storage system are Suspend, restore the data volume pair that has

been split at the primary storage system.

When You Power Off Network Relay Devices

If you want to power off a network relay device during remote copy operations, you must ensure, before

powering off the device, that all data volume pairs or mirrors (i.e., pairs of journal groups) are split, and

that the status of all the data volume pairs is Suspend.

If data volume pairs are split and the network relay device is powered off as mentioned above, you can

resume remote copy operations by taking the following steps:

1. Power on the network relay device.

2. If the network relay device is ready for remote copy operations, please restore the data volume

pairs that have been split, and then conﬁrm that the status of the data volume pairs is Pending or

Duplex. This operation must be performed at the primary site.

Hitachi Universal Replicator for z/OS user guide for XP12000/XP10000 Disk Arrays and SVS 200

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