All external paths must be removed before detaching a channel adaptor, otherwise the channel adaptor cannot be detached.Removing and replacing an external path
You can remove a path so it is no longer available to the external volume. In addition, you can remove a path to replace it with another external path or to perform maintenance on the physical link.
All external paths must be removed before detaching a channel adaptor, otherwise the channel adaptor cannot be detached.
Prerequisites
Before removing a path, make sure it is disconnected. See Disconnecting an external path for instructions.
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.
Click Edit External Path Configuration.
In the Edit External Path Configuration window, in the Selected External Paths list, select the path to be removed and click Remove.
The external path is deleted from the Selected External Paths list.
Click Finish.
In the Confirm window, check settings, accept or enter a new task name, and then click Apply.
If you are replacing the path, see Adding an external path to an existing path group .
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