Parity Group Capacity

• Internal: Capacity of all of the parity groups in the internal volume.
  • Free¹: Free space capacity of which the internal volumes can be created. For the free space of the accelerated compression-enabled parity group, this area displays the value of which the total mapped pages capacity of LDEVs (assigned in the physical area and external area) is deducted from the parity group capacity.
  • Total: The total capacity of the internal volumes and the free space is displayed. In a case for the total space of the accelerated compression-enabled parity group, this area displays the physical area capacity.
• External: Capacity of all of the parity groups in the external volume.
  • Free¹: The total free space of which users can create external volumes.
  • Total: The total capacity of all external volumes (that are created by users) and free space.

Number of Drives

• SSD: Displays the number of SSDs.
• SAS: Displays the number of SAS drives.
• Total: Displays the total number of drives.

Format/Shredding Task Status

• Formatting n %: Displays the progress of the format task.
• Preparing Quick Format n %: Displays the progress of the quick format preparing.
• Verifying n % (x / y parity groups): Displays the progress of the verifying. n represents the progress of the verifying. x represents the number of parity groups that are completed of verifying. y represents the number of all parity groups that are to be verified.
• Blank: States that the format, shredding, or verifying is not being performed. If the configuration of the storage system is being changed, this field is also blank because the information cannot be collected.

Note:

1. The control information used by the storage system, such as control cylinders, is not included in the Free capacity.

Parity Group ID

Parity group identifier of the parity group in the storage system.

LDEV Status

The following icons are used to indicate the status of each LDEV in the parity group:

• Normal: Normal status.
• Blocked: Host cannot access a blocked volume.
• Warning: Problem occurs in the volume.
• Formatting: Volume is being formatted.
• Preparing Quick Format: Volume is being prepared for quick formatting.
• Quick Formatting: Volume is being quick-formatted.
• Correction Access: Access attribute is being corrected.
• Copying: Data in the volume is being copied.
• Read Only: Data cannot be written on a read-only volume.
• Shredding: Volume is being shredded.
• - (hyphen): Any status other than the above.

RAID Level

RAID level. An asterisk "*" indicates that the parity group to which the LDEV belongs is interleaved (concatenated). Either RAID level of the parity group appears.

Base Emulation Type¹

Emulation type of each parity group.

Capacity

Displays information about the pool capacity.

• Free: Free space capacity of which the internal volumes can be created. For the free space of the accelerated compression-enabled parity group, this area displays the value of which the total mapped pages capacity of LDEVs (assigned in the physical area and external area) is deducted from the parity group capacity. The control information used by the storage system, such as control cylinders, is not included in the Free capacity.
• Total: The total capacity of the internal volumes and the free space is displayed. In a case for the total space of the accelerated compression-enabled parity group, this area displays the physical area capacity.

Physical Capacity¹

Capacity assured for writing data in the parity group.

Number of LDEVs

• Unallocated: Number of unallocated LDEVs in each parity group.
• Total: Total number of LDEVs in each parity group.

Drive Type/RPM

Drive type and rpm in use on this LDEV.

Encryption

Encryption information:

• Enable: encrypted parity group
• Disable: non-encrypted parity group
• - (hyphen): parity group in which the encryption setting is not defined

Accelerated Compression¹

Displays information about accelerated compression for the parity group.

• Enabled: Accelerated compression for the parity group is enabled.
• Disabled: Accelerated compression for the parity group is disabled.
• - (hyphen): The parity group does not support accelerated compression.

Expanded Space Used¹

Displays whether the LDEV is allocated in the expanded area or the physical area. If accelerated compression is enabled, LDEVs are initially allocated in the physical area, and then LDEVs are allocated in the expanded area.

• Yes: LDEV is allocated in the expanded area.
• No: LDEV is allocated in the physical area.

Attribute

Displays the attribute of the parity group.

A hyphen (-) is displayed for a parity group in which the attribute is not defined.

Copy-Back Mode

Displays the setting of the copy-back mode.

• Enable: Copy-back mode is set to parity groups.
• Disable: Copy-back mode is not set to parity groups.

Resource Group Name (ID)

Resource group name and ID of which this parity group is a member.

Virtual Storage Machine ¹

Model type and serial number of the virtual storage machine to which the parity group belongs.

Create Parity Groups

Opens the Create Parity Groups window.

Create LDEVs

Opens the Create LDEVs window.

Format Parity Groups

Opens the Format Parity Groups window.

Format LDEVs²

Opens the Format LDEVs window.

Edit Encryption²

Opens the Edit Encryption window.

Shred LDEVs²

Opens the Shred LDEVs window.

Edit Parity Groups²

Opens the Edit Parity Groups window.

Delete Parity Groups²

Opens the Delete Parity Groups window.

Block LDEVs²

Opens the Block LDEVs window.

Restore LDEVs²

Opens the Restore LDEVs window.

Interrupt Shredding Task²

Opens the Interrupt Shredding Task window.

Export²

Opens the window that enables you to export the configuration information listed in the table to a file that can be used for purposes such as analysis or reporting.

¹ Does not appear by default. To display this item, click Column Settings.

² Available when you click More Actions.

Parity Group ID

Displays the identifier of the parity group.

Drive Box

Displays the identifier of the drive box.

Location

Displays the location of the drive box.

Status

Displays the status of the drive box

Drive Type/RPM/Capacity

Displays the drive type, RPM, and capacity. As for SSD, a hyphen (-) appears on the RPM field.

Drive Type-Code

Displays the drive type-code.

Usage

Displays the usage status of the drive.

• Data: Data drive.
• Spare: Spare drive
• Free: Drive which is not used.

Create Parity Groups

Displays the Create Parity Groups window.

Assign Spare Drives

Displays the Assign Spare Drives window.

Export

Displays the window for outputting table information.