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Enabling fallback to software snapshots

To ensure snapshot completion, you can enable both hardware and software snapshots for your data sources.

If you enable both hardware and software snapshots, XBM attempts to perform a hardware snapshot. If for any reason this snapshot fails, XBM transparently falls back to performing a software snapshot.

To enable XBM to fall back to a software snapshot from a failed hardware snapshot, you must set up a software snapshot cache and define the options, as listed in Specifying-snapshot-types-through-options.

If the data set resides on devices that support both data-set-level and volume-level snapshots, XBM attempts to perform a data set snapshot and then a volume split before falling back to a software snapshot.

Related topic

Controlling-which-types-of-snapshots-are-enabled



 

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