It looks like you have got all your drives mapped as separate partitions on a single Windows volume.
You need to rebuild this so that each drive letter has its own Windows volume.
Cluster failover works at the Windows volume level, not at the partition level.
Original author: https://github.com/SQL-FineBuild/Common/wiki/ 1-click install and best practice configuration of SQL Server 2019, 2017 2016, 2014, 2012, 2008 R2, 2008 and 2005.
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