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Oracle® ZFS Storage Appliance Administration Guide, Release OS8.7.0

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Updated: July 2017
 
 

Resuming/Suspending Analytics Datasets and Worksheets

Analytics datasets may be resumed or suspended. This is particularly useful when tracking down sporadic performance issues, and when enabling these datasets 24x7 is not desirable.

For example, imagine you noticed a spike in CPU activity once or twice a week, and other analytics showed an associated drop in NFS performance. You enable some additional datasets, but you don't quite have enough information to prove what the problem is. If you could enable the NFS by hostname and filename datasets, you are certain you will understand the cause a lot better. However those particular datasets can be heavy handed - leaving them enabled 24x7 will degrade performance for everyone. This is where the resume/suspend dataset actions may be of use. A threshold alert could be configured to resume paused NFS by hostname and filename datasets, only when the CPU activity spike is detected; a second alert can be configured to then suspend those datasets, after a short interval of data is collected. The end result - you collect the data you need only during the issue, and minimize the performance impact of this data collection.

For more information on datasets, see About Analytics Datasets in Oracle ZFS Storage Appliance Analytics Guide, Release OS8.7.0.

These actions are to resume or suspend an entire Analytics worksheet, which may contain numerous datasets. The reasons for doing this are similar to those for resuming and suspending datasets. For more information, see Worksheet Graphs and Plots in Oracle ZFS Storage Appliance Analytics Guide, Release OS8.7.0.

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