Disk Usage

The disk usage metric shows the percentage of space used on the data partition of a node. This includes the main Cassandra files containing your data as well as working files such as snapshots for backups and temporary copies of files used for compactions.

We recommend that disk usage is kept to less than 70% during normal running to allow temporary working space for Cassandra operations. If your cluster is regularly exceeding 70% then you should consider adding capacity or removing data.

Instaclustr Support monitors disk use for all managed clusters and will notify you if your cluster is exceeding recommended levels of disk usage.

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If you have questions regarding this article, feel free to add it to the comments below.


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    Is is possible to resize the disk or RAM or CPU ?

    If so how?





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    Ben Slater


    We have just released a new feature which allows you to online resize the instances (CPU and memory) of a cluster. (Not publicly announced yet but it's there on the console today.) However, this only works for certain node sizes designed specifically for this use.

    To change the size of other instances just log a ticket with our tech ops team via the usual support channels and they will be happy to work through options as to whether horizontal or vertical scaling will work better for your cluster.




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