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Man Pages


Manual Reference Pages  -  GMOUNTVER (8)

NAME

gmountver - control utility for disk mount verification GEOM class

CONTENTS

Synopsis
Description
Sysctl Variables
Exit Status
See Also
History
Authors

SYNOPSIS

gmountver create [-v] dev ... gmountver destroy [-fv] prov ... gmountver list gmountver status [-s name] gmountver load [-v] gmountver unload [-v]

DESCRIPTION

The gmountver utility is used to control the mount verification GEOM class. When configured, it passes all the I/O requests to the underlying provider. When the underlying provider disappears - for example because the disk device got disconnected - it queues all the I/O requests and waits for the provider to reappear. When that happens, it attaches to it and sends the queued requests.

The first argument to gmountver indicates an action to be performed:
create Cache the given devices with specified name. The kernel module geom_mountver.ko will be loaded if it is not loaded already.
destroy
  Destroy name.
list See geom(8).
status See geom(8).
load See geom(8).
unload See geom(8).

Additional options:
-f Force the removal of the specified mountver device.
-v Be more verbose.

SYSCTL VARIABLES

The following sysctl(8) variables can be used to control the behavior of the MOUNTVER GEOM class. The default value is shown next to each variable.
kern.geom.mountver.debug: 0
  Debug level of the MOUNTVER GEOM class. This can be set to a number between 0 and 3 inclusive. If set to 0 minimal debug information is printed, and if set to 3 the maximum amount of debug information is printed.
kern.geom.mountver.check_ident: 1
  This can be set to 0 or 1. If set to 0, gmountver will reattach to the device even if the device reports a different disk ID.

EXIT STATUS

Exit status is 0 on success, and 1 if the command fails.

SEE ALSO

geom(4), geom(8)

HISTORY

The gmountver utility appeared in
.Fx 9.0 .

AUTHORS


.An Edward Tomasz Napierala Aq trasz@FreeBSD.org
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