Workload categorization provides a method of classifying data activity that Easy Tier® manages. This categorization includes a redefinition and comparison of heat data across storage tiers in a way that can be more easily interpreted.
- Presents data activity changes consistently, long term, as standards of different heat usage become more stable.
- Displays comparable data activity across tiers and pools.
- Helps avoid situations in which very little data is available for a high-skew workload.
- Enables data to be more easily interpreted, such as displaying active data that Easy Tier identifies and promotes to flash drive.
- Provides a collaborative view of the workload distribution because future skew curve covers the relative comparison within a pool.
You can download the workload categorization report by using the Export Easy Tier Summary option available from the Export icon on the System page.
|Capacity that is not allocated.
|To display free space, unallocated data displays heat usage at the pool or rank level.
|Data that meets I/O cost-benefit promote decision points 0.1 Gbps I/Os based on smaller I/Os only.
|From a performance perspective, data with 0.1 Gbps I/Os or smaller I/O activity is active enough to be placed on an flash-drive tier.
|Data that does not meet the I/O cost-benefit promote decision point based on total I/Os.
|The benefit of moving low-activity data to an upper storage tier is insufficient.
|Data that has not received I/O activity.
|Inactive data should be placed on a lower tier.
|Data that is not previously classified and might exist on any storage tier. Generally, this data is accessed more for large I/Os rather than small I/Os.
|Active, large data includes more of the sequential I/O that is not suitable to a flash-drive storage tier.