Changing the cache mode
If the system cannot communicate with external volumes, the Inflow Control setting specifies whether the write operation to cache is limited (Enable) or continued (Disable). Disable is set by default. You can change the setting in the Edit External Volumes window.
Prerequisites
You must have Storage Administrator (Provisioning) role to perform this task.
Procedure
Open the External Storage window.
In the Hitachi Command Suite:
On the Resources tab, click Storage Systems, and then expand All Storage Systems.
Expand the target storage systems, right-click External Storage, and then select System GUI.
In Device Manager - Storage Navigator:
Click Storage Systems, and then expand the Storage Systems tree.
Click External Storage.
On the External Storage Systems tab, click the link for an external system.
On the External Path Groups tab, select a path group.
On the Mapped Volumes tab, select an external volume, and then click Edit External Volumes.
On the Edit External Volumes window, select the Inflow Control property, and then click Enable or Disable.
Click Finish to display the Confirm window.
Confirm the settings and enter the task name in the Task Name box.
In the Confirm window, click Apply.
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