Parity Groups report

PG

Parity group number

• If the number starts with "E" (for example, E1-1), the parity group contains external volumes (Universal Volume Manager User Guide).
• If the number starts with "M" (for example, M1-1), the parity group contains volumes for FICON DM.

DKB

Name of the disk board that controls the parity group¹

RAID Level

RAID level of the parity group¹

Resource Group Name

Name of the resource group in which the parity group belongs

Resource Group ID

ID for the resource group in which the parity group belongs

Emulation Type

Emulation type of the parity group

Number of LDEVs (Total)

The number of the logical volumes in the parity group

Number of LDEVs (Unallocated)

The number of the logical volumes in the parity group that the host cannot access

Total LDEV Capacity (MB)

Capacity of the logical volumes in the parity group

Unallocated LDEV Capacity (MB)

Capacity of the logical volumes in the parity group that the host cannot access

Drive Type-Code

The type code of the drive in the parity group.

• The type code of the first drive in the parity group.
• If the parity group contains external volumes, the drive type code displays the vendor, the model, and the serial number of the storage system.
• Separated by semicolons (;) if multiple drive types are set.

Drive Type/RPM

Drive type and revolutions-per-minute (RPM) of the drive in the parity group¹

A hyphen (-) is displayed instead of the RPM when the drive is an SSD.

Drive Capacity

Capacity of the drive in the parity group¹

RAID Concatenation #0

The number indicating a parity group #0 connected to this parity group^1,2

RAID Concatenation #1

The number indicating a parity group #1 connected to this parity group^1,2

RAID Concatenation #2

The number indicating a parity group #1,2 connected to this parity group^1,2

Encryption

Indicates whether the parity group is encrypted.

• For internal volumes: Enabled (encrypted) or Disabled (not encrypted)
• For external volumes: A hyphen (-) is displayed

Accelerated Compression

Accelerated compression of the parity group

• If accelerated compression is supported, Enabled or Disabled is displayed.
• If accelerated compression is not supported, a hyphen (-) is displayed.

Notes:

1. A hyphen is displayed if the parity group contains external volumes.
2. A hyphen is displayed if the parity group is not connected with another parity group or if the parity group contains external volumes including volumes for FICON DM.