Red Hat Summit第3章 Block pools
The OpenShift Data Foundation operator installs a default set of storage pools depending on the platform in use. These default storage pools are owned and controlled by the operator and it cannot be deleted or modified. With OpenShift Container Platform, you can create multiple custom storage pools which map to storage classes that provide the following features:
- Enable applications with their own high availability to use persistent volumes with two replicas, potentially improving application performance.
- Save space for persistent volume claims using storage classes with compression enabled.
Multiple block pools are not supported for external mode OpenShift Data Foundation clusters.
3.1. Creating a block pool
Prerequisites
- You must be logged into the OpenShift Container Platform web console as an administrator.
Procedure
-
Click Storage
Data Foundation. - In the Storage systems tab, select the storage system and then click the BlockPools tab.
- Click Create Block Pool.
Enter Pool name.
注記Using 2-way replication data protection policy is not supported for the default pool. However, you can use 2-way replication if you are creating an additional pool.
-
Select Data protection policy as either
2-way Replicationor3-way Replication. Optional: Select Enable compression checkbox if you need to compress the data.
Enabling compression can impact application performance and might prove ineffective when data to be written is already compressed or encrypted. Data written before enabling compression is not compressed.
- Click Create.
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