LUN ID

Identifier of the selected logical unit.

LDEV ID

LDEV identifier, which is the combination of LDKC, CU, and LDEV.

LDEV Name

Name of the LDEV.

Host Group Name / iSCSI Target Alias

Name of the host group or iSCSI target alias.

iSCSI Target Name

Name of the iSCSI target.

Host Mode

The host mode of the host group.

Host Mode Option

The number of host mode options that are enabled.

Port ID

Identifier of the port on this volume.

Type

Type of port:

• Fibre: Fibre Channel port.
• iSCSI: iSCSI port.

• NAS Platform (User LU): LDEV used for storing the NAS user data. This value appears if the NAS module is installed.

• NAS Platform (System LU): LDEV used for storing the NAS firmware system data. This value appears if the NAS module is installed.

Emulation Type

Emulation types for the logical volume (or logical device).

Capacity

Size of the logical volume.

Provisioning Type

Provisioning type assigned to this logical volume.

• Basic: Internal volume.
• External: External volume.
• DP: V-VOL of Dynamic Provisioning.
• Snapshot: Thin Image volume.

LDEV Attribute

Displays the attribute of the LDEV.

• Command Device: Command device.
• Remote Command Device: Remote command device.
• Data Direct Mapping: LDEV with the data direct mapping attribute enabled.

• NAS Platform (User LU): LDEV used for storing the NAS user data. This value appears if the NAS module is installed.

• NAS Platform (System LU): LDEV used for storing the NAS firmware system data. This value appears if the NAS module is installed.

• - (hyphen): Volume in which the attribute is not defined.

Command Device Attributes

If the logical volume is used as a command device, indicates the status of the attributes on this LDEV.

• Security: Indicates the status of command device security is (enable or disable).
• User Authentication: Indicates the status of user authentication (enable or disable).
• Device Group Definition: Indicates the status of device group definition (enable or disable).

Access Attribute

Access attribute assigned to this LDEV.

• Read/Write: Both read and write operations are permitted on the logical volume.
• Read-only: Read operations are permitted on the logical volume.
• Protect: Neither read nor write operations are permitted.

Number of Paths

Number of paths set for the LDEV.

UUID

User-definable LUN identifier. This field is blank if the UUID is not set.

CLPR

Cache logical partition numbers.

For detailed information about CLPRs, see the Performance Manager Guide.

Encryption

Displays the information about parity group encryption.

• Enable: Encryption setting of a parity group in which the LDEV is placed is enabled. Or the virtual volume associated with the pool whose pool-VOLs are enabled of the encryption setting.
• Disable: Encryption setting of a parity group (or a pool) in which the LDEV is placed is disabled. Or the virtual volume associated with the pool whose pool-VOLs are disabled of the encryption setting.
• Mixed: This status is displayed when two or more of the following are specified as pool-VOLs:
  • Volume encryption setting is enabled.
  • Volume encryption setting is disabled.
  • External volume

  Caution: The data encryption is not ensured in the pool that has the Mixed encryption setting. To manage the data encryption securely, use the pool with an encryption setting of Enabled or Disabled.

• - (hyphen): External volume or migration volume. As for DP-VOL of Dynamic Provisioning, the pool-VOL in the pool of which DP-VOL belongs is an external volume, or the pool of which DP-VOL belongs is being blocked.

ALUA Mode

Information about the ALUA mode.

• Enabled: LDEV can be used in ALUA.
• Disabled: LDEV cannot be used in ALUA.

Asymmetric Access States

Asymmetric access states of the port. When using iSCSI, a hyphen (-) is displayed.

Active/Optimized: Access from the host is preferentially performed on this port.

Active/Non-Optimized: When the Active/Optimized port is disabled, access from the host is performed on this port.

T10 PI

The LDEV's T10 PI attribute setting (Enabled or Disabled).

Data Direct Mapped LDEV

Displays LDEV ID of pool-VOL in the pool with data direct mapping enabled.

A hyphen (-) is displayed if the data direct mapping attribute is disabled.

Capacity Saving

Capacity saving setting of the LDEV:

• Compression: The compression function is used.
• Deduplication and Compression: The deduplication and compression functions are used.
• Disabled: The capacity saving function is not used.

Capacity Saving Status

Status of the capacity saving function:

• Enabling: The format for enabling the capacity saving function is being performed.
• Rehydrating: The format for disabling the capacity saving function is being performed.
• Deleting Volume: The deletion of DP-VOL whose capacity saving function is Enabled is being performed.
• Enabled: The capacity saving function is enabled.
• Disabled: The capacity saving function is disabled.
• Failed: Data cannot be secured.
• - (hyphen): The LDEV does not support the capacity saving function.

Deduplication Data

Displays whether the deduplication function is applied to the volume (DP-VOL).

• Enabled: The deduplication function is applied.
• Disabled: The deduplication function is not applied.
• - (hyphen): The LDEV is not a DP-VOL, or the firmware version does not support deduplication.

If the capacity saving setting of a DP-VOL is Deduplication and Compression, Enabled is displayed even if the used capacity is 0.

When the capacity saving setting is Disabled and the disabling of the capacity saving setting is in process, Enabled is displayed for Deduplication Data while deduplicated data remains in the DP-VOL. When the disabling of the capacity saving setting is complete and no deduplicated data remains in the DP-VOL, Disabled is displayed.

Virtual Storage Machine

Information about the virtual storage machine.

• Model / Serial Number: Model name and serial number of the virtual storage machine that has the LDEV.
• LDEV ID: Virtual LDEV ID. If a Virtual LDEV ID is not assigned to the LDEV, this column is blank.
• Device Name: Virtual device name, which is a combination of the virtual emulation type, virtual LUSE volume number, and the virtual CVS attribute. Values of the virtual emulation type, virtual LUSE volume number, and virtual CVS attribute appear only for items that have been set. This column is blank when the virtual emulation type, virtual LUSE volume number, and virtual CVS attribute are not set. If the virtual CVS attribute is set, CVS is attached as the suffix to the device name.
• SSID: Virtual SSID. If Virtual SSID is not set for an LDEV, this column is blank.
• Attribute: Virtual LDEV attribute. If the attribute is not set for LDEV, this column is blank.

Port ID

Identifier of the port.

Type

Type of port:

• Fibre: Fibre Channel port.
• iSCSI: iSCSI port.

• NAS Platform (User LU): LDEV used for storing the NAS user data. This value appears if the NAS module is installed.

• NAS Platform (System LU): LDEV used for storing the NAS firmware system data. This value appears if the NAS module is installed.

Host Group Name / iSCSI Target Alias

Name of the host group or iSCSI target alias.

iSCSI Target Name

Name of the iSCSI target.

LUN ID

Identifier of the logical unit.

Asymmetric Access States

Asymmetric access states of the port. When using iSCSI, a hyphen (-) is displayed.

Active/Optimized: Access from the host is preferentially performed on this port.

Active/Non-Optimized: When the Active/Optimized port is disabled, access from the host is performed on this port.

Type

Type of port:

• Fibre: Fibre Channel port.
• iSCSI: iSCSI port.

• NAS Platform (User LU): LDEV used for storing the NAS user data. This value appears if the NAS module is installed.

• NAS Platform (System LU): LDEV used for storing the NAS firmware system data. This value appears if the NAS module is installed.

HBA WWN / iSCSI Name

WWN of HBA or iSCSI name.

Host Name

Name of the host.