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HV_VSS_DAEMON(8)	  BSD System Manager's Manual	      HV_VSS_DAEMON(8)

NAME
     hv_vss_daemon -- Hyper-V Volume Shadow Copy Service Daemon

SYNOPSIS
     hv_vss_daemon [-dn]

DESCRIPTION
     The hv_vss_daemon daemon provides the ability to freeze and thaw the file
     system for	FreeBSD	guest partitions running on Hyper-V.

     Hyper-V allows administrators to backup or	restore	the FreeBSD guest par-
     tition.  Administrators can use Windows Powershell	scripts	to backup or
     restore the FreeBSD VM.

     The hv_vss_daemon accepts file system freeze and thaw requests from the
     hv_utils(4) driver	and performs the actual	file-system operation.

     The file system freeze and	thaw functionality is useful when the Hyper-V
     host wants	to do live backup of FreeBSD guest. Hyper-V host sends file
     system freezing request to	hv_vss_daemon which conducts the real opera-
     tion. After successfully freezing file system, Hyper-V host takes a snap-
     shot of the VM. In	the future, Hyper-V host can restore the FreeBSD VM
     through that snapshot.

     The options are as	follows:

     -d	     Run as regular process instead of a daemon	for debugging purpose.

     -n	     Generate debugging	output.

SEE ALSO
     hv_vmbus(4), hv_utils(4), hv_netvsc(4), hv_storvsc(4), hv_kvp(4)

HISTORY
     The daemon	was introduced in October 2016 and developed by	Microsoft
     Corp.

AUTHORS
     FreeBSD support for hv_vss_daemon was first added by Microsoft BSD
     Integration Services Team <bsdic@microsoft.com>.

BSD			       October 12, 2016				   BSD

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | AUTHORS

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