17.05 - File System: Cylinder Management Overhead Events 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

These columns identify the number of times the File System software performed a cylinder management event. The table ResUsageIvpr further breaks down the I/Os associated with these events. For more information, see ResUsageIvpr Table Overview.

Column Name Mode Description Data Type
FileCylAllocs count Number of new cylinders allocated. FLOAT
FileCylDefrags count Number of cylinder defragments performed. FLOAT
FileCylFrees count Number of logical or physical cylinders freed. FLOAT
FileCylMigrs count Number of cylinder migrations. FLOAT
FileMCylPacks count Number of MiniCylPack operations performed. FLOAT