Often, additional steps will be necessary to free up space. When deduplication is involved, simply deleting files may not be sufficient. To recover from this condition, it is necessary to free up space on the volume. The amount of data a deduplicated volume can store depends on the underlying physical device, the level of deduplication in the dataset and theĪbility of the system (IO storage subsystem, memory available, CPU speed) to complete the deduplication optimization processing for the amount of daily data churn.Ī volume with deduplication enabled can become full when the deduplication savings percentage is not high enough or the dedup optimization job cannot keep up with optimizing the data churn. The only event log we have is for “disk full”, which is too late.Īs with any storage system, a deduplication enabled volume will become full when enough data is written to it. Note: There is no event log indicating deduplication is not keeping up with the data churn and volume is running out of free space. General Purpose File Servers (GPFS) using deduplication will report standard out of storage free space errors via the operating system.The VMs will remain paused and unresponsive. For VDI and virtualized backup workloads, any running Hyper-V virtual machines with virtual hard disks on the volume will be put into a pause-critical state.If the deduplication volume becomes full the following symptoms result:
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