Lowercase volume letters for jobs in Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ExtMirr\Parameters\Jobs is not compatible with DataKeeper.
If the drive letters become lowercase, they will need to be manually changed to uppercase in the registry. If lowercase, DataKeeper will fail to execute emcmd commands when calling for the volume. If using Microsoft Failover Clustering alongside DataKeeper, lowercase job endpoints will prevent the volumes from coming online.
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