Erasure Coding Ratio Configuration

Owned by Anjali Tyagi
Last updated: Nov 27, 2023 by Bala Harish A(AC)
1 min read

The default Erasure Coding configuration comes by default in a cluster. Refer to the following steps for any custom https://perifery.atlassian.net/wiki/spaces/public/pages/2443812123 needed in a cluster:

  1. Log in to Swarm Storage UI.

  2. Navigate to Settings > Cluster from the left navigation pane.

  3. Scroll down to the Policy section and update the value for the policy.ecEncoding.

Total number of required nodes are calculated using (k + p) / p formula where k denotes the number of data segments and p denotes parity. Ā Based on this formula, administrators can determine the number of nodes required using the default EC protection level of ā€œnodeā€.Ā 

Note

For example, a 4:2 (k:p) encoding yields:

(4 + 2) / 2 = 3 nodes required

Data is still fully protected in the event 1 node out of a 4 node cluster is offline. Ā See https://perifery.atlassian.net/wiki/spaces/public/pages/2443812150 for details.

Next, https://perifery.atlassian.net/wiki/spaces/public/pages/2919006302.

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