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33 .Nd "control utility for disk mount verification GEOM class"
57 utility is used to control the mount verification GEOM class.
58 When configured, it passes all the I/O requests to the underlying provider.
59 When the underlying provider disappears - for example because the disk device
60 got disconnected - it queues all the I/O requests and waits for the provider
62 When that happens, it attaches to it and sends the queued requests.
66 indicates an action to be performed:
67 .Bl -tag -width ".Cm destroy"
69 Cache the given devices with specified
73 will be loaded if it is not loaded already.
92 .Bl -tag -width indent
94 Force the removal of the specified mountver device.
101 variables can be used to control the behavior of the
104 The default value is shown next to each variable.
105 .Bl -tag -width indent
106 .It Va kern.geom.mountver.debug : No 0
110 This can be set to a number between 0 and 3 inclusive.
111 If set to 0 minimal debug information is printed, and if set to 3 the
112 maximum amount of debug information is printed.
113 .It Va kern.geom.mountver.check.check_ident : No 1
114 This can be set to 0 or 1.
117 will reattach to the device even if the device reports a different disk ID.
120 Exit status is 0 on success, and 1 if the command fails.
130 .An Edward Tomasz Napierala Aq trasz@FreeBSD.org