17.05 - Logical Device: I/O Hard Limits Columns - Teradata Database

Teradata Vantageā„¢ - Resource Usage Macros and Tables

prodname
Advanced SQL Engine
Teradata Database
vrm_release
17.00
17.05
created_date
June 2020
category
Administration
User Guide
featnum
B035-1099-170K

The Input/Output Token Allocations (IOTA) columns provide the percentage of disk throughput that is being used.

Column Name Mode Description Data Type
FullPotentialIota count The full potential input or output token allocations for a device.

The input or output token allocations are not limited by the IO_COD setting.

The data source for this field is located in the cod_full_potential_iota field in the /proc/tdmeter/disk_cod_stats file.

FLOAT
CodPotentialIota count The potential input or output token allocations for a device.

The input or output token allocations are accumulated only when an I/O is pending on a device, and they are limited by the IO_COD setting.

The data source for this field is located in the cod_allocated_iota field in the /proc/tdmeter/disk_cod_stats file.

FLOAT
UsedIota count Used input or output token allocations for a device.

The data source for this field is located in the cod_used_iota field in the /proc/tdmeter/disk_cod_stats file.

FLOAT