PowerScale OneFS 9.3.0.0 CLI Administration Guide

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Interoperability

This section describes how Small Files Storage Efficiency interoperates with OneFS components.


OneFS component	Description
SyncIQ	Packed files are treated as normal files during failover and failback operations. Packed files are packed on the target cluster if Small Files Storage Efficiency is enabled on the target cluster and the correct file pools policy can be applied. SyncIQ does not synchronize the file pools policies. You must manually create the correct file pools policies on the target cluster. Best practice is to enable Small Files Storage Efficiency on the source cluster and on the target cluster so that you retain the benefits of storage efficiency on both clusters. If Small Files Storage Efficiency is enabled on only the source cluster, there is risk that the target cluster may run out of space. Running out of space blocks data replication. NOTE: The benefits of Small Files Storage Efficiency are not realized on the target cluster until a SmartPools job runs on the replicated data.
File clones and deduplication	Interoperability is limited. Cloned files are not optimized. Deduplication skips packed files. Packing skips deduplicated files.
InsightIQ	Adding shadow references to files does not change the logical file size. It does change the physical block usage of files. InsightIQ cluster summary figures accurately display the used and free space. The figures for per-directory and per-file usage may not be accurate.
CloudPools	Interoperability is limited. The CloudPools SmartLink files are not packed. Packed files can be unpacked first and included in SmartLink files. Recalled files are not packed immediately.
SmartLock	The packing process handles write-once/read-many (WORM) files as regular files. WORM files are good candidates for packing. WORM files are unlikely to cause fragmentation due to writing changed files back to disk, so will not degrade storage efficiency.