LDKC

Select the LDKC which is displayed in the tree.

CU Group

00-3F: CUs from 00 to 3F appear in the tree.

Tree

A list of CUs. Selecting a CU provides the selected CU information in the volume list on the right of the tree.

This tree appears only the CUs that include volumes to which access attributes can be actually set.

Volume list

Lists information about the CU selected in the tree. See the table below for details.

Expiration Lock

Enables or disables enhanced volume protection.

• Disable > Enable: Indicates the expiration lock is disabled. You can change an access attribute to read/write when the retention term is over.
• Enable > Disable: Indicates the expiration lock is enabled. You cannot change an access attribute to read/write even when the retention term is over.

Apply

Applies settings to the storage system.

Cancel

Discards setting changes.

LDEV

LDEV number.

• : Read/write
• : Read-only
• : Protect

The symbol beside the LDEV number indicates:

• #: an external volume
• A: LDEV of the ALU attribute.
• S: LDEV of the SLU attribute.
• V: a virtual volume
• D: Deduplication System Data volume
• X: a virtual volume used for Dynamic Provisioning

Attribute

Access attribute assigned to this volume. These attributes can be assigned using the Command Control Interface.

• Read/Write: Both read and writer 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.

Emulation

Volume emulation types.

Capacity

Capacity of each volume in GB to two decimal places.

S-VOL

Indicates whether the volume can be specified as a secondary volume (S-VOL). You can also use the CCI to specify whether each volume can be used as an S-VOL.

Reserved

Indicates the method that can be used to make LU path and command device settings.

• Hyphen (-): Both CCI and Device Manager - Storage Navigator can be used to make LU path and command device settings.
• CCI: Only CCI can be used to make LU path and command device settings. Device Manager - Storage Navigator cannot be used to do so.

Retention Term

Period (in days) when you are prohibited from changing access attribute to read/write. The retention term can be extended but cannot be shortened. During the retention term, you can change read-only to protect, or vice versa.

• 500 days. Attempts to change access attribute to read/write are prohibited in the next 500 days.
• Unlimited: The retention term is extended with no limits.
• 0 days: You can change access attribute to read/write.

Caution: In Data Retention Utility, you can increase the value for Retention Term, but cannot decrease the value.

Path

Number of LU paths.

Mode

Indicates the mode that the CCI user assigns to the volume. You cannot use Device Manager - Storage Navigator to change modes. You must use the CCI to change modes.

• Zer: Zero Read Cap mode is assigned to the volume. If the Read Capacity command (which is a SCSI command) is issued to a volume in Zero Read Cap mode, it will be reported that the capacity of the volume is zero.
• Inv: Invisible mode is assigned to the volume. If the Inquiry command (which is a SCSI command) is issued to a volume in Invisible mode, it will be reported that the volume does not exist. Therefore, the hosts will be unable to recognize the volume.
• Zer/Inv. Both Zero Read Cap mode and Invisible mode are assigned to the volume.
• Hyphen (-): No mode is assigned by CCI to the volume.

Operation

Target of the operation or the name of the operation. When no operation is performed, No Operation appears.

Also shown are the volume icons and the total number of volumes with each access attribute.