Task Name

Identifies the operation within the system when Apply is clicked. Allows you to track the status of the operation.

External Path Group ID

Name of the external path group.

Vendor / Model / Serial Number

Identifying information for the external system.

Priority

Priority of external paths.

Port ID

Displays the external port of the local storage system.

Type

Displays the port type.

• Fibre: Fibre Channel port
• iSCSI: iSCSI port

Virtual Port ID

Displays the virtual port of the local storage system.

External

Displays the information about the target port of the external storage system.

• IP Address: Displays the target port IP address when the port type is an iSCSI port.
• WWN / iSCSI Target Name: Displays the WWN to show the target port when the port type is a Fibre Channel port. If the port type is iSCSI port, the iSCSI target name is displayed.

LUN ID(Highest Priority)

The LUN which is connected to the external path with the highest priority.

Device Name

Name of the storage system reported to the host by the external volume. The displayed name differs by vendor. For some enterprise storage systems, this field displays emulation type.

Volume Properties

Identification number of the external volume.

The value is used by UVM to identify the LUN across multiple paths. The value is provided by the external system and might reflect internal numbering.

Device ID

Identification number of the external volume.

Drive Info

Information about the external volume's drive type.

SATA displays when the external volume is a SATA drive of following storage systems.

• Virtual Storage Platform
• Universal Storage Platform V/VM
• HUS/AMS/WMS
• SMS
• Thunder 9500V

SSD displays when the external volume is the SSD of following storage systems.

• VSP Gx00 models, VSP Fx00 models
• VSP G1000, VSP G1500, VSP F1500
• HUS VM Storage Platform
• Virtual Storage Platform
• Universal Storage Platform V/VM

Parity Group ID

Parity group numbers.

Top LDEV ID

External volume's top LDEV ID.

Top LDEV Name

External volume's top LDEV name.

Number of LDEVs

External volume's number of LDEVs.

Capacity

External volume capacity.

CLPR

CLPR used for accessing to the mapped external volume.

Cache Mode

• Enable: Write data from the host is propagated asynchronously
• Disable: Write data from the host is propagated synchronously

See the planning topic in the Universal Volume Manager User Guide for more information.

Inflow Control

• Enable: Limits or prevents write data from being written to cache memory when the write operation cannot be performed.
• Disable: Allows write data to be written to cache when the write operation cannot be performed.

See External volume policy settings and functions for more information.

Path Mode

Displays operation mode of the external path.

• Single: Ordinarily, only one external port is used even if alternate paths are set. In Single mode, alternate paths are used only in case of maintenance work failure.
• Multi: When alternate paths are set, external paths from several ports are simultaneously used with load balancing.
• ALUA: When alternate paths are set, external paths from several ports are simultaneously used with load balancing. External paths connected to ports in Passive status are not used.

ALUA Permitted

Displays whether ALUA can be set as the Path Mode in the local storage system.

• Enable: ALUA Mode is used.
• Disable: ALUA Mode is not used.

Load Balance Mode

Displays I/O load balance system for external storage system.

• Normal Round-robin: Performs load balance in round-robin system.
• Extended Round-robin: Load balance system is automatically switched for sequential I/O and random I/O.
• Disable: Performs I/O operation with a single path, without load balance.

MP Unit ID

IDs of the external volume's MP unit.

Attribute

External volume's attribute.

LDEV Detail

Displays the External LDEV Properties window and you can review the details of the selected external volume.