Dell PowerStore 3000X EMC PowerStore Monitoring Your System - Page 10

Historical capacity data collection and retention periods Historical capacity is displayed once data collection begins. One year of capacity usage data is displayed in the charts, and the data is retained for up to 2 years. Historical charts scroll automatically to the left when new data is available. Capacity forecasting and recommendations PowerStore uses historical capacity metrics to forecast when your appliance or cluster may run out of storage space, and to provide recommendations on how to free up the system resources. Capacity forecasting There are three threshold levels used to forecast system capacity alerts. Thresholds are set by default and cannot be changed. Table 2. Capacity alert thresholds Priority Threshold Major 1 to 14 days until the appliance or cluster is full. Minor 15 to 28 days until the appliance or cluster is full. Okay 4+ weeks until the appliance or cluster is full. Alerts appear in the appliance or cluster charts, and also in the Notifications > Alerts page. Forecasting starts after 15 days of data has been collected for the cluster or appliance. Prior to 15 days an "Insufficient data to predict time to full," message appears in the Physical Capacity area next to the chart. Forecasting includes data for up to one year, with a two year retention period. Capacity recommendations PowerStore also provides a recommended repair flow. The repair flow provides options to free up space on the cluster or appliance. The Repair Flow options are provided in the Alerts panel and include the following: Table 3. Capacity recommendations Option Description Assisted Migration Provides recommendations of volumes, or volume groups to migrate from one appliance to another. Migration recommendations are generated based on factors such as appliance capacity, and health. You can also choose to manually migrate volumes, or volume groups, based on your own calculations, when your cluster or appliance is approaching capacity. Migration is not supported for Virtual Volumes (vVols), or file systems. Migration is supported within a single cluster with multiple appliances. Migration recommendations are provided in the PowerStore Manager after a Major threshold is met. However, you can use the PowerStore Management REST API to review migration recommendations at anytime. Clean Up System Delete system resources that are no longer being used. Add More Devices Purchase additional storage for your appliance. Recommendations expire in 24 hours to ensure that the recommendation is always current. 10 Monitoring Capacity