Comment 0 for bug 1796404

Brief Description
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Cinder 'backup' went into 'error' status right after being created and stayed in that status. cinder backup-show <id> shew the reason 'An unknown exception occurred'

Severity
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Critical

Steps to Reproduce
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1 create a 'cinder backup' for a free cinder volume on a ceph lab:
cinder backup-create --container cinder --name <name> <vol_id>

Expected Behavior
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The 'backup' should be created without any issue and would reach 'available' status

Actual Behavior
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The 'backup' got into 'error' status right after the creation CLI executed and stayed in the states.

Reproducibility
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Reproducible

System Configuration
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 storage

Branch/Pull Time/Commit
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master as of 2018-10-04_01-52-00