PowerScale OneFS 9.2.1.0 CloudPools Administration Guide

SyncIQ policies

CloudPools supports SyncIQ replication of SmartLink files to one or more target clusters. SyncIQ can also be used to restore backed up SmartLink files to their original (source) cluster.

The two types of SyncIQ policies are synchronization policies and copy policies. These policies can be run manually, or configured to run automatically, based on policy settings.

CloudPools supports both types of SyncIQ policy. When SyncIQ replicates SmartLink files to a target cluster, secondary information associated with a SmartLink file, such as local cache state and unsynchronized cache data, is also replicated.

If your source (primary) cluster goes down or is unavailable for any reason, and you fail over to the secondary cluster, users can continue to access SmartLink files and, therefore, cloud data, as they would normally.

If the failover is temporary and you plan to restore your source cluster to full operation, you do not need to enable cloud write access on the secondary cluster. Any changes that users make to SmartLink files are stored in the local cache, which is limited only by the amount of free space on your cluster. When you fail back to your source cluster, and restore updated SmartLink files, only then will CloudPools write the cached modifications back to the cloud.

If the failover is long-term or permanent, see Configuring access to cloud data from a secondary cluster for information about providing the secondary cluster with write access to the cloud data.