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- Configure alerts. Set up event notification rules so that you will be notified when the cluster begins to reach capacity thresholds. Make sure to enter a current email address in order to receive the notifications.
- Monitor alerts. The cluster sends notifications when it has reached 95 percent and 99 percent capacity. On some clusters, 5 percent capacity remaining might mean that a lot of space is still available, so you might be inclined to ignore these notifications. On a large cluster, pay close attention to the alerts, closely monitor the cluster, and have a plan in place to take action when necessary.
- Monitor ingest rate. It is very important to understand the rate at which data is coming into the cluster or pool.
- Options to do this include:
- SNMP
- SmartQuotas
- FSAnalyze
- Use SmartQuotas to monitor and enforce administrator-defined storage limits. SmartQuotas manages storage use, monitors disk storage, and issues alerts when disk storage limits are exceeded. Although it does not provide the same detail of the file system that FSAnalyze does, SmartQuotas maintains a real-time view of space utilization so that you can quickly obtain the information you need.
- Run FSAnalyze jobs. FSAnalyze is a job-engine job that the system runs to create data for the InsightIQ file system analytics tools. FSAnalyze provides details about data properties and space usage within the /ifs directory. Unlike SmartQuotas, FSAnalyze updates its views only when the FSAnalyze job runs. Since FSAnalyze is a fairly low-priority job, it can sometimes be preempted by higher-priority jobs and therefore take a long time to gather all of the data. An InsightIQ license is required to run an FSAnalyze job.