MAN page from Mandriva 2006 multipath-tools-0.4.2.7-3mdk.i586.rpm
MULTIPATH
Section: Linux Administrator's Manual (8)
Updated: February 2004
Index NAME
multipath - Device mapper target autoconfig
SYNOPSIS
multipath[
-v verbosity][
-d][
-l][
-i int][
-p failover|
multibus|
group_by_serial|
group_by_prio|
group_by_node_name][
-S][
device]
DESCRIPTION
multipathis used to detect multiple paths to devices for fail-over or performance reasons and coalesces them
OPTIONS
- -v level
- verbosity, print all paths and multipaths
- 0
- no output
- 1
- print the created or updated multipath names only, for use to feed other tools like kpartx
- 2 +
- print all info : detected paths, coalesced paths (ie multipaths) and device maps
- -d
- dry run, do not create or update devmaps
- -l
- list the current multipath configuration
- -i interval
- multipath target param: polling interval
- -D major:minor
- update only the devmap the path pointed bymajor:minoris in
- -F
- flush all the multipath device maps
- -p policy
- force maps to specified policy:
- failover
- 1 path per priority group
- multibus
- all paths in 1 priority group
- group_by_serial
- 1 priority group per serial
- group_by_prio
- 1 priority group per priority value. Priorities are determined by callout programs specified as a global, per-controler or per-multipath option in the configuration file
- group_by_node_name
- 1 priority group per target node name. Target node names are fetched in /sys/class/fc_transport/target*/node_name.
- -S
- do not send signal to multipathd. -d activate this silently.
- device
- update only the devmap the path pointed bydeviceis in. deviceis in the /dev/sdb (as shown by udev in the $DEVNAME variable) or major:minor format.devicemay alternatively be a multipath mapname
SEE ALSO
udev(8),
dmsetup(8)
hotplug(8)
AUTHORS
multipathwas developed by Christophe Varoqui, <christophe.varoquiAATTfree.fr> and others.
Index
- NAME
- SYNOPSIS
- DESCRIPTION
- OPTIONS
- SEE ALSO
- AUTHORS
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