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- Full Name: Alex Crosby
I can see from the Oracle alert log that the database is being put into backup mode by the Oracle VSS writer at the time of the backup snapshot, but the resulting backup image always requires media recovery from the online redo logs prior to opening the database. Interestingly the database alert log on the recovered image makes no mention of the datafiles being put into backup mode, suggesting perhaps that the volume snapshot was being fired too soon, before the Oracle VSS writer had finished doing its job. Wondering if this is normal, or if data is potentially being lost.
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As for your question, Veeam only creates snapshot after it hears from Windows OS that the system is ready for shadow copy - which only happens after all VSS writers (including Oracle one) have signaled to the OS that the respective application is frozen and ready for the shadow copy.
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