Adding the storage array
If you have a large storage array available, the data may also be migrated to a hardware storage array on the SAN. You can eliminate all the direct-attached storage devices or keep them to increase your storage capacity. They can also be added into the configuration when needed.
To add the storage array
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Set up and connect the hardware storage array to the switch. On the switch, the hardware storage array must be in the same zone as the direct-attached storage devices and the large server.
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Configure the array so that half of its disks are a mirror to the other half, using RAID-1. This provides fault tolerance to the storage.
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Join the disk groups on the array storage and the direct-attached storage. This is done through the
Join Dynamic Disk Groupcommand. -
Use the
Move Subdiskcommand to move the volumes with data from the direct-attached storage to the array storage. You may want to keep some of the direct-attached storage on the SAN under the control of the large server.
To access the
Move Subdisk command:
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Select the volume that contains the subdisk you want to move.
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Click on the Subdisks tab in the right pane of the window.
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Right-click the desired subdisk in the Subdisks tab and selectMove Subdisk from the context menu.
The Move Subdisk command also can be done by dragging and dropping the subdisks between disks in the Disk View. This method should be used with care to make sure that you do not move the subdisk to the wrong disk.
At this point, the migration of the storage from the four smaller servers is complete.
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