# TotalStorageDS Extent Pool

The TotalStorage® Extent Pool attributes provide information about the extent pools in a TotalStorageDS storage facility.

Allocated Extents: The total number of real allocated extents in the pool.

Avg Read Op Rate: The average read operations per second to all ranks in the extent pool.

Avg Read Resp Time: The average read response time (in milliseconds) to all ranks in the extent pool.

Avg Write Op Rate: The average number of write operations per second to all ranks in the extent pool.

Avg Write Resp Time: The average write response time (in milliseconds) to all ranks in the extent pool.

Dyn Reloc Src Extents: The total number of extents used as source for dynamic relocation.

Dyn Reloc Tgt Extents: The total number of extents used as the target for dynamic relocation.

Dyn Reloc Tgt Extents: The total number of extents used as the target for dynamic relocation.

Extent Pool ID: The identifier of the extent pool.

Managed System: The internal node name used to identify the system from which this row of data was obtained.

Max Read Op Rate: The maximum read operations per second to any rank in the extent pool.

Max Read Resp Time: The maximum read response time (in milliseconds) to any rank in the extent pool.

Max Write Op Rate: The maximum number of write operations per second to any rank in the extent pool.

Max Write Resp Time: The maximum write response time (in milliseconds) to any rank in the extent pool.

Pool Type: The extent pool type, either CKD (Count Key Data) or FB (Fixed Block).

Pool Utilization: The percentage of the total extents in the pool that are currently allocated.

Real Extents Converted: The total number of real extents converted in the extent pool.

Real Extents: The total number of real extents in the extent pool.

Real Pool Capacity: The total real capacity (in GB) of the extent pool.

SSD Ranks: The status of solid state devices in the extent pool, including All, None, and Mixed (both SSD and non-SSD ranks).

Storage Facility ID: The storage facility identifier for the device (Type-Model-Serial Number).

Storage Facility Serial Number: The storage facility serial number of the device.

Time Stamp: The date and time associated with this row of data.

Total Read Operations: The total read operations to all ranks in the extent pool.

Total Write Operations: The total number of write operations to all ranks in the extent pool.

Virt Extents Converted: The total number of virtual extents converted in the extent pool.

Virtual Extents: The total number of virtual extents in the extent pool.

Virtual Pool Capacity: The total virtual capacity (in gigabytes) of the extent pool.