Description

Take the data with a two-copy policy as an example: When components (disk or node) in a virtual datastore suffer a physical fault, another copy of the data is stored on other components to ensure normal reading and writing of the virtual machine. As a result, the redundancy of the virtual datastore is reduced, leading to data loss if the component storing the other copy breaks down. With data rebuilding, when a component breaks down, the other copy of the data on the faulted component will be used as the recovery source to rebuild a new copy on the target component in fragments to recover the completeness of the copy and realize system self-recovery.

Precautions

1. To use the automatic rebuilding feature, the number of HCI clustered nodes must be four or more.

2. When the two nodes have No spare disks when a disk failure occurs, automatic rebuilding is not supported.

Prerequisites

1. Node mutual exclusion between replicas of shards must be satisfied.
2. If condition 1 is satisfied, there are disks in the cluster where disk capacity does not exceed 85%.

Steps

1. Go to Storage > Virtual Storage and click Settings.

2. Select Data Rebuilding, and configure the wait time for host rebuild and disk rebuild.