Failure during Thin Image pair restore

If a failure occurs while restoring Thin Image pairs, the pairs are suspended.

During a failure, the storage system does the following:

• Blocks and suspends the Thin Image pair ("PSUE" status), including pairs that have snapshot data in the pool.

• Writes data to the Thin Image pair volumes.

• Exceeds the data pool capacity of snapshot data.

If a failure occurs, delete the unneeded snapshot data by restoring the suspended pairs.