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31 .Nd Hyper-V Volume Shadow Copy Service Daemon
38 daemon provides the ability to freeze and thaw the file system for
40 guest partitions running on Hyper-V.
42 Hyper-V allows administrators to backup or restore the
46 use Windows Powershell scripts to backup or restore the
52 accepts file system freeze and thaw requests from the
54 driver and performs the actual file-system operation.
56 The file system freeze and thaw functionality is
57 useful when the Hyper-V host wants to do live backup of
59 guest. Hyper-V host sends file system freezing request to
61 which conducts the real operation. After successfully freezing file
62 system, Hyper-V host takes a snapshot of the VM. In the future,
63 Hyper-V host can restore the
65 VM through that snapshot.
67 The options are as follows:
68 .Bl -tag -width indent
70 Run as regular process instead of a daemon for debugging purpose.
72 Generate debugging output.
81 The daemon was introduced in October 2016 and developed by Microsoft Corp.
88 .An Microsoft BSD Integration Services Team Aq Mt bsdic@microsoft.com .