Error Code: [7:203] Snap operation failed with an error:[snap shot creation failed]

MySQL and PostgreSQL block level backup jobs running on a native snap engine fails with Error Code [7:203]

Symptoms

Block level backup job running on a native snap engine fails with the following error message:

Error Code: [7:203] Description: Snap operation failed with an error:[snap shot creation failed]

You can also find following error in the MySqlBackup.log file:

13328 3410 06/21 10:44:38 2023159 IdaSnapUtil::HandleBlockLevelConfig() - HandleBlockLevelConfig failed for [PRE_SNAP], error=0x8007065B:{CvDeviceConfigHandler_UNIX::ExecutePrePostSnapTask(246)/W32.1627.(Error=1627)-CVBF/LVM device[/dev/mapper/largevol1-largedb] Native backup with more than one Subclient configured is not supported, AppId=[7358], Error=[0xECCC0010:{CBlockLevelBitmapHandler::VerifyDevicesDup(504)/ErrNo.16.(Device or resource busy)-Device[/dev/mapper/largevol1-largedb] is configured for multiple BlockLevel Subclients, Id's=[7065, 7358, ]}]}

Causes

Multiple subclients are configured on the same volume for the client.

Resolution

For a native snap engine, configure a single subclient for each volume.