Are you talking about this Unassigned Device the syslog is complaining about?
Mar 16 18:16:03 BiggieSmalls unassigned.devices: Adding disk '/dev/sdf1'...
Mar 16 18:16:03 BiggieSmalls unassigned.devices: No filesystem detected on '/dev/sdf1'.
Mar 16 18:16:03 BiggieSmalls unassigned.devices: Partition 'ST8000VN0022-2EL112_ZA1AH61C-part1' could not be mounted.
Mar 16 18:16:03 BiggieSmalls unassigned.devices: Adding disk '/dev/sdf2'...
Mar 16 18:16:03 BiggieSmalls unassigned.devices: Mount drive command: /sbin/mount -t ntfs -o rw,auto,async,noatime,nodiratime,nodev,nosuid,umask=000 '/dev/sdf2' '/mnt/disks/Big_Drive'
Mar 16 18:16:04 BiggieSmalls ntfs-3g[623]: Version 2017.3.23 integrated FUSE 27
Mar 16 18:16:04 BiggieSmalls ntfs-3g[623]: Mounted /dev/sdf2 (Read-Only, label "Big Drive", NTFS 3.1)
Mar 16 18:16:04 BiggieSmalls ntfs-3g[623]: Cmdline options: rw,noatime,nodiratime,nodev,nosuid,umask=000
Mar 16 18:16:04 BiggieSmalls ntfs-3g[623]: Mount options: rw,nodiratime,nodev,nosuid,allow_other,nonempty,noatime,ro,default_permissions,fsname=/dev/sdf2,blkdev,blksize=4096
Mar 16 18:16:04 BiggieSmalls ntfs-3g[623]: Global ownership and permissions enforced, configuration type 1
Mar 16 18:16:04 BiggieSmalls unassigned.devices: Mount warning: The disk contains an unclean file system (0, 0). Metadata kept in Windows cache, refused to mount. Falling back to read-only mount because the NTFS partition is in an unsafe state. Please resume and shutdown Windows fully (no hibernation or fast restarting.)