Isilon On-Cluster Analysis: Cluster Capacity

Summary: The Cluster Capacity check in the Isilon On-Cluster Analysis health-check script is reporting the free space limit reached.

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Symptoms

Isilon On-Cluster Analysis health check script is reporting one of the following:
  • Cluster is 95% used, total amount of available space on the cluster must be at least 10%.
  • Node 1 is 95% used, total free space for each node must be at least 8%.

Cause

Isilon On-Cluster Analysis health-check script shows issues which require resolving.

Resolution

Precheck:

  • Cluster is 95% used, total amount of available space on the cluster must be at least 10%.
  • Node 1 is 95% used, total free space for each node must be at least 8%.
Step to follow:
  1. Verify the issue using commands in the Notes section.
  2. Indicate in the precheck summary that the upgrade cannot proceed until resolved. 
  3. Indicate in the precheck case notes that the following must be sent to the customer:

"The total amount of available space on the entire cluster must be at least 10 percent, and the total free space for each node must be at least 8 percent. Do not proceed with the upgrade if the minimum available-space requirement for the cluster is not met. For more information, see the Best Practices Guide for Maintaining Enough Free Space on Isilon Clusters and Pools."


Preupgrade:

  • Cluster is 95% used, total amount of available space on the cluster must be at least 10%.
  • Node 1 is 95% used, total free space for each node must be at least 8%.

Step to follow:

  1. Verify the issue using commands in the Notes section.
  2. Provide the customer with the following:

"The total amount of available space on the entire cluster must be at least 10 percent, and the total free space for each node must be at least 8 percent. Do not proceed with the upgrade if the minimum available-space requirement for the cluster is not met. For more information, see the Best Practices Guide for Maintaining Enough Free Space on Isilon Clusters and Pools."

  1. Postpone the activity and send an email to the Primary Dell Contact or Scheduling Specialist and indicate that the activity is being postponed due to capacity issues. 


Postupgrade:

  • Cluster is 95% used, total amount of available space on the cluster must be at least 10%.
  • Node 1 is 95% used, total free space for each node must be at least 8%.

Step to follow:

  1. Verify the issue using commands in the Notes section.
  2. Reference the customer to the following document: Best Practices Guide for Maintaining Enough Free Space on Isilon Clusters and Pools. 

Additional Information

Run the following commands on a cluster to view the status and investigate for capacity issues:
isi status

Run the following command on a logset on elvis to view the status and investigate for capacity issues:
cat `ls */isi_status | head -1`

Affected Products

Isilon

Products

Isilon
Article Properties
Article Number: 000015450
Article Type: Solution
Last Modified: 20 Oct 2025
Version:  7
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