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| Replication requirements for Hitachi TrueCopy | ||
|---|---|---|
| Prev | Requirements for Hitachi TrueCopy array-based hardware replication | Next |
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| Replication requirements for Hitachi TrueCopy | ||
|---|---|---|
| Prev | Requirements for Hitachi TrueCopy array-based hardware replication | Next |
Before it performs any tasks, the wizard validates the array configuration as follows:
On the primary site, the wizard verifies that all devices are the same type, but not S-SWS or SSUS.
On the secondary site, the wizard verifies that all devices are the same type, but not P-VOL or PSUS.
Otherwise, the wizard displays an invalid configuration message and does not proceed.
The DR wizard does not start or stop replication. Array replication configuration is not a prerequisite for the wizard to perform storage cloning or service group cloning.
After the service group cloning task is complete, the DR wizard displays a screen describing the following replication requirements:
All configured instances are running.
No disks in the SFW disk group span across the Device Group.
A device group can contain one or more disk groups.
The device group does not span more than one array.
At the primary site, all devices are of the type P-VOL.
At the secondary site, all devices are of the type S-VOL.
All device groups at the primary site are paired to an IP address which must be online on the secondary node.
Device group and device names include only alphanumeric characters or the underscore character.
It is recommended that you ensure that these requirements are met before proceeding with the wizard. The wizard then validates the array replication configuration.
If replication is configured correctly, the wizard populates the resource configuration screen with the required replication settings for the HTC resource.
If the replication configuration does not meet the requirements, the wizard leaves the fields on the resource configuration screen blank. You can optionally enter the resource configuration information in the wizard and configure the array replication requirements later. The information you enter is applied only to the HTC resource, not to the array configuration. However, the HTC resource will be unable to come online in the service group until replication has been configured correctly.