Add External Volumes window

Part of the Add External Volumes wizard, use this window to display discovered external volumes and to make related selections.

Discovered External Volumes

Item	Description
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 displays when the external volume is the SSD of following storage systems. VSP Gx00 models, VSP Fx00 models VSP G1000 and G1500, 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 G200: 00 to 07 VSP G400, G600, VSP F400, F600: 00 to 0F VSP G800, VSP F800: 00 to 3F VSP G1000, VSP G1500, VSP F1500: 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, MPU-11, MPU-20 or MPU-21. 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.

Selected External Volumes

Displays selected external volumes.

Item	Description
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 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'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 Detail*	When clicked, the External LUN Properties window opens and you can review the path details of the selected external volume.
LDEV Detail*	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: * Appears when you click More Actions.