Delete Pairs window

Selected Pairs Table


Item	Description
Local Storage System	Displays the information about the local storage system. LDEV ID: Displays the LDEV ID of the volume. LDEV Name: Displays the LDEV name of the volume. Pair Position: Displays whether the volume is the primary volume or the secondary volume. Attribute: (VSP G200, G400, G600, G800 only) Displays the LDEV attribute. Capacity: Displays the capacity of the volume. CLPR: Displays the CLPR ID of the volume. I/O Mode: Displays the I/O mode of the volume.
Copy Type	Displays the copy type.
Status	Displays the pair status.
Remote Storage System	Displays the information about the remote storage system. Model / Serial Number: Displays the model and the serial number. LDEV ID: Displays the LDEV ID of the volume in the remote storage system.
Path Group ID	Displays the path group ID.
Mirror ID	Displays the mirror ID.
Quorum Disk ID	Displays the quorum disk ID.
CTG ID	Displays the consistency group ID.

Setting Fields


Delete Mode	Specify the deletion mode. Normal: The selected pair is deleted. Force: The selected pair is forcibly deleted. If you select Force, the pair is deleted, even if the local storage system cannot communicate with the remote storage system. The server waiting for the device-end (I/O completion signal) from the local storage system that is not able to communicate with the remote storage system is released, and then you can continue to operate the server. Note: You can select Force only when the I/O mode of both the primary volume and the secondary volume is Block. If you want to delete the GAD pair forcibly when the I/O mode is other than block, contact for assistance. Note: If you select Force, the GAD pair must be removed from the storage system both at the primary site and at the secondary site. When the server can access both volumes, if you delete the pair forcibly with the Volume Access option specified as Enable, data failure might occur because the contents of each volume are not the same. Therefore, delete the pair according to the following procedure: Stop access from the server to one of the pair volumes. Select the volume for which access from the server has been stopped, and delete the pair forcibly with the Volume Access option set to Disable. Select the volume for which access from the server continues, and delete the pair forcibly with the Volume Access option set to Enable.
Volume Access	Specify one of the following: Enable: The virtual LDEV ID of the volume in the local storage system is not deleted, and the server can access the volume even if the pair is deleted. Disable: The virtual LDEV ID of the volume in the local storage system is deleted, and the server cannot access the volume after the pair is deleted. Set the reserve attribute for the secondary volume.

Item

Description

Delete Mode

Specify the deletion mode.

Normal: The selected pair is deleted.

Force: The selected pair is forcibly deleted.

If you select Force, the pair is deleted, even if the local storage system cannot communicate with the remote storage system. The server waiting for the device-end (I/O completion signal) from the local storage system that is not able to communicate with the remote storage system is released, and then you can continue to operate the server.

Note: You can select Force only when the I/O mode of both the primary volume and the secondary volume is Block. If you want to delete the GAD pair forcibly when the I/O mode is other than block, contact for assistance.

Note: If you select Force, the GAD pair must be removed from the storage system both at the primary site and at the secondary site. When the server can access both volumes, if you delete the pair forcibly with the Volume Access option specified as Enable, data failure might occur because the contents of each volume are not the same. Therefore, delete the pair according to the following procedure:

Stop access from the server to one of the pair volumes.

Select the volume for which access from the server has been stopped, and delete the pair forcibly with the Volume Access option set to Disable.

Select the volume for which access from the server continues, and delete the pair forcibly with the Volume Access option set to Enable.

Volume Access

Specify one of the following:

Enable: The virtual LDEV ID of the volume in the local storage system is not deleted, and the server can access the volume even if the pair is deleted.

Disable: The virtual LDEV ID of the volume in the local storage system is deleted, and the server cannot access the volume after the pair is deleted. Set the reserve attribute for the secondary volume.