LUN ID(Highest Priority)

The external LUN with the highest priority.

"?" indicates that an external volume is not found. In this case, confirm the connection with the external system, and then perform the operation again.

Device Name

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

Capacity

External volume capacity.

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

• VSP G350, G370, G700, G900, and VSP F350, F370, F700, F900
• VSP G200, G400, G600, G800, and VSP F400, F600, F800
• VSP G1x00, VSP F1500
• HUS VM Storage Platform
• Virtual Storage Platform
• Universal Storage Platform V/VM

Path Mode

Displays operation mode of the external path.

• Single: Ordinarily, only one external path 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 Settable

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

• Enable: Enables ALUA Mode.
• Disable: Disables ALUA Mode.

Discovery Result

Displays one of the following:

• Normal
• An error code

When clicked, the link displays the Discovery Result Detail window with details of the search.

Initial Parity Group ID

An external volume group number and sequence number. Values range from 1 - 1 (default) to 16384 - 4096.

Data Direct Mapping

Specify whether to enable the Data Direct Mapping attribute.

• Enable: Enables the Data Direct Mapping attribute.
• Disable: Disables the Data Direct Mapping attribute (Default).

Allow Simultaneous Creation of LDEVs

LDEVs are automatically created in the external volume when Yes is selected. If No is selected, you must create LDEVs manually.

By default, the value set in the Edit Policies window is set. If Enable is specified for Data Direct Mapping, Yes is selected automatically.

Use External Storage System Configuration

If Yes is specified in “Allow Simultaneous Creation of LDEVs”, the external volume's configuration for the LDEVs is used when Yes is selected. If No is selected, you must configure LDEVs manually.

By default, Yes is selected. If Enable is specified for Data Direct Mapping, Yes is selected automatically.

LDEV Name

Requires a prefix character and initial number, 32 characters maximum (including the initial number).

Numbering rule for Initial Number:

• 1: Total of 9 numbers (1, 2, 3, ...9)
• 08: Total of 92 numbers (08, 09, 10, ...99)
• 23: Total of 77 numbers (23, 24, 25, ...99)
• 098: Total of 902 numbers (098, 099, 100, ...999)

Options

Optional default settings for the external volume. Options can be affected by values entered in previous fields.

Initial LDEV ID

The storage system searches from this number in ascending order and allocates the next available LDEV ID to the external volume.

LDKC

LDKC number. 00 can be set for the value.

CU

CU number. Possible values for each model:

• VSP G130: 00 to 08
• VSP G350, VSP F350: 00 to 3F
• VSP G370, VSP F370: 00 to 7F
• VSP G700, VSP F700: 00 to BF
• VSP G1000, VSP G1500, VSP F1500 , VSP G900, VSP F900: 00 to FE

Default is 00.

DEV

LDEV identifier. Value between 00 and FF can be set. Default is 00.

Interval

Interval between the LDEV IDs can be selected. The specified interval will be kept and the LDEV ID will be set to each LDEV in external volume. From 0 (default) to 255.

View LDEV IDs

Shows used, available, and disabled LDEV IDs.

Number of LDEVs per External Volume

Maximum number of LDEVs to be created in the external volume when the volume is mapped. Depends on base emulation type and the capacity of the external volume.

If Enable is specified for Data Direct Mapping, 1 is selected automatically.

Cache Partition

CLPR for accessing the external volume. The range can be from CLPR0 to CLPR31. The default is the value set in the Edit Policies window.

See External volume policy settings and functions for more information.

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.

Use ALUA as Path Mode

Select whether ALUA is used as the Path Mode. The default is Enable if ALUA mode can be set as the Path Mode. Otherwise, the default is Disable.

• Enable: Enables ALUA mode.
• Disable: Disables ALUA mode.

Load Balance Mode

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

• Depends on the selected external volume(s): If Enable is set for ALUA Settable on the external volume, Normal Round-robin is set for Load Balance Mode automatically. If Disable is set for ALUA Settable, Disable is set for Load Balance Mode automatically.
• 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.

The default is the value set in the Edit Policies window.

If the product name of an external storage system is displayed as (generic), Depends on the selected external volume(s) is used by default.

This item cannot be selected when the path mode of the external volume is Single or Disable is selected for Use ALUA as Path Mode.

MP Unit ID

MP unit ID for the external volume.

• You can select MPU-10 or MPU-20.
• Auto (default): Unit is automatically selected by the system.
• If Auto cannot be selected, the unit with lowest number is used.

Add

When clicked, moves selected volumes to the Selected External Volumes list.

LUN ID(Highest Priority)

External volume's LUN 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

External volume's identification number.

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

• VSP G350, G370, G700, G900, and VSP F350, F370, F700, F900
• VSP G200, G400, G600, G800, and VSP F400, F600, F800
• 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's 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 path 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

ID of the MP unit of the external volume.

Attribute

Attribute of the external volume.

Change Settings

When clicked, the Change Setting dialog box opens.

Remove

When clicked, removes external volumes from the Selected External Volumes table.

Path Detail²

When clicked, the External LUN Properties window opens and you can review the path details of the selected external volume.

LDEV Detail²

When clicked, the External LDEV Properties window opens and you can review the details of the LDEV to be created from the selected external volume.

Notes:

1. FMD is only for VSP F1500, VSP G1x00.
2. Appears when you click More Actions.