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Dell PowerScale SyncIQ: Architecture, Configuration, and Considerations
Executive summary Introduction Deployment topologies Use cases Architecture and processes Data replication Configuring a SyncIQ policy Impacts of modifying SyncIQ policies SyncIQ performance rules SnapshotIQ and SyncIQ SyncIQ design considerations Failover and failback Superna Eyeglass DR Edition SyncIQ and CloudPools SyncIQ security SyncIQ bandwidth reservations Monitoring, alerting, reporting, and optimizing performance Administration SyncIQ replication and data reduction 16 TiB large file support and SyncIQ implications
Overview
OneFS version compatibility SmartLock compatibility Conclusion Appendix A: Failover and failback steps Appendix B: SyncIQ encryption with self-signed certificates Appendix C: Configuring cascaded replication Appendix D: Configuring custom replication Appendix E: Technical support and resources

Overview

Overview

  • OneFS 8.2.2 introduces a feature for large file support, permitting the maximum allowable file size in a PowerScale cluster to increase four-fold, from 4 tebibytes previously, to 16 tebibytes. For more information about the large file support feature for 16 TiB, see the Dell PowerScale OneFS Best Practices white paper.

    Important: It is critical to note the implications of this feature, because after it is enabled, it cannot be disabled.

    If large file support is enabled for 16 TiB on a source cluster, all SyncIQ policies only connect with target clusters that also have large file support enabled, as illustrated in Figure 43. Otherwise, SyncIQ policies fail when establishing a connection with a cluster without large file support.

    These unique requirements apply to new and existing SyncIQ policies. Furthermore, workflow impacts for existing SyncIQ policies are possible, if for any reason the target cluster does not have resources for the 16 TiB feature.

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    Figure 43.    16 TiB large file support and SyncIQ implications