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fence_scsi(8) | System Manager's Manual | fence_scsi(8) |
NAME¶
fence_scsi - I/O fencing agent for SCSI persistent reservationsSYNOPSIS¶
fence_scsi [ OPTION]...DESCRIPTION¶
fence_scsi is an I/O fencing agent that uses SCSI-3 persistent reservations to control access to shared storage devices. These devices must support SCSI-3 persistent reservations (SPC-3 or greater) as well as the "preempt-and-abort" subcommand.OPTIONS¶
- -o action
- Fencing action. This value can be "on", "off", or "status". All actions require either a key (see -k option) or node name (see -n option). For "on", the agent will attempt to register with the device(s) and create a reservation if none exists. The "off" action will attempt to remove a node's key from the device(s). The "status" action will report whether or not a node's key is currently register with one or more of the devices. The default action if "off".
- -d devices
- List of devices to use for current operation. Devices can be comma-separated list of raw device (eg. /dev/sdc) or device-mapper multipath devices (eg. /dev/dm-3). Each device must support SCSI-3 persistent reservations.
- -f logfile
- Log output to file.
- -n nodename
- Name of the node to be fenced. The node name is used to generate the key value used for the current operation. This option will be ignored when used with the -k option.
- -k key
- Key to use for the current operation. This key should be unique to a node. For the "on" action, the key specifies the key use to register the local node. For the "off" action, this key specifies the key to be removed from the device(s).
- -a
- Use the APTPL flag for registrations. This option is only used for the "on" action.
- -h
- Print out a help message describing available options, then exit.
- -v
- Verbose output.
- -V
- Print out a version message, then exit.
STDIN PARAMETERS¶
- agent = "param"
- This option is used by fence_node(8) and is ignored by fence_scsi.
- nodename = "param"
- Same as -n option.
- action = "param"
- Same as -o option.
- devices = "param"
- Same as -d option.
- logfile = "param"
- Same as -f option
- key = "param"
- Same as -k option.
- aptpl = "1"
- Enable the APTPL flag. Default is 0 (disable).