OneFS SyncIQ and CloudPools features are designed to work together seamlessly. CloudPools tiers data to a cloud provider. The cloud provider could be Dell’s Elastic Cloud Storage (ECS), a public, private, or hosted cloud. As data is tiered to a cloud provider, a small file is retained on the cluster, referred to as a SmartLink, containing the relevant metadata to retrieve the file at a later point. A file that is tiered to the cloud, cannot be retrieved without the SmartLink file. For more information about CloudPools, see PowerScale OneFS CloudPools Administration Guide or the PowerScale CloudPools and ECS Solution Guide.
If a directory on the source cluster is configured for data replication to a target cluster containing the SmartLink files, the SmartLink files are also replicated to the target cluster.
Note: Although configuration to a cloud provider exists on the source and target clusters, it is important to understand that only a single cluster may have read and write access to the cloud provider. Both the source and target cluster have read access, but only a single cluster may have read and write access.
During normal operation, the source cluster has read-write access to the cloud provider, while the target cluster is read-only, as illustrated in the following figure.