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your system. For example, the following command sequence displays the multipath configuration,
including the defaults, before exiting the console.
# multipathd -k
> > show config
> > CTRL-D
The following command sequence ensures that multipath has picked up any changes to the
multipath.conf,
# multipathd -k
> > reconfigure
> > CTRL-D
Use the following command sequence to ensure that the path checker is working properly.
# multipathd -k
> > show paths
> > CTRL-D
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Red Hat Enterprise Linux 6 DM Multipath
Revision History
Revision 6.0-6.4 04 Mon Nov 25 2013 Rüdiger Landmann
Rebuild with Publican 4.0.0
Revision 6.0-6 Wed Nov 13 2013 Steven Levine
Version for 6.5 GA release
Revision 6.0-5 Fri Sep 27 2013 Steven Levine
Version for 6.5 Beta release
Revision 6.0-3 Fri Sep 27 2013 Steven Levine
Resolves: #987144, #987671
Documents new reload_rewrite and replace_wwid_whitespace parameters in the
multipath.conf file.
Resolves: #911630, #969022
Corrects small typographical errors.
Revision 6.0-1 Tue Sep 10 2013 Steven Levine
Adding new default parameters for RHEL 6.5.
Revision 5.0-9 Mon Feb 18 2013 Steven Levine
Version for 6.4 GA release
Revision 5.0-7 Mon Nov 26 2012 Steven Levine
Version for 6.4 Beta release
Revision 5.0-6 Tue Nov 13 2012 Steven Levine
Resolves: #856829
Documents new retain_attached_hardware_handler and detect_prio configuration
parameters.
Resolves: #815925
Documents the procedure for setting up multipathing in the initramfs file system.
Resolves: #836333
Corrects small typographical error.
Resolves: #856826
Updates sample multipath.conf excerpt to reflect updated path_selector parameter.
Revision 4 .0-3 Fri Jun 15 2012 Steven Levine
Version for 6.3 GA release
Revision 4 .0-2 Wed Apr 25 2012 Steven Levine
Resolves: #815925
Updates output format for dmsetup ls example.
48
Revision History
Revision 4 .0-1 Wed Mar 28 2012 Steven Levine
Resolves: #786399
Fixes small typographic error.
Resolves: #771420
Documents new DM-Multipath features for Red Hat Enterprise Linux 6.3.
Revision 3.0-3 Thu Dec 1 2011 Steven Levine
Release for GA of Red Hat Enterprise Linux 6.2
Resolves: #753899
Corrects description of multipath -F option.
Revision 3.0-2 Fri Oct 7 2011 Steven Levine
Resolves: #743767
Fixes typos and clarifies small issues.
Revision 3.0-1 Mon Sep 19 2011 Steven Levine
Initial revision for Red Hat Enterprise Linux 6.2 Beta release
Resolves: #707638
Documents new DM-Multipath features for Red Hat Enterprise Linux 6.2.
Resolves: #715457
Corrects filter example for SCSI devices.
Resolves: #623450
Updates procedures for moving root device to a multipathed volume.
Resolves: #725374, #738051
Corrects minor typographical errors.
Revision 2.0-1 Thu May 19 2011 Steven Levine
Initial revision for Red Hat Enterprise Linux 6.1
Resolves: #623450
Adds new procedures for moving root and swap devices from single path to multipathed devices.
Resolves: #693948
Corrects small errors in tables of device attributes.
Resolves: #694683
Corrects small typographic errors.
Resolves: #702721
Removes outdated reference to /dev/mpath.
Revision 1.0-1 Wed Nov 10 2010 Steven Levine
First version for the Red Hat Enterprise Linux 6 release
49
Red Hat Enterprise Linux 6 DM Multipath
Index
Symbols
/etc/multipath.conf package, Setting Up DM-Multipath
A
active/active configuration
- definition, Overview of DM-Multipath
- illustration, Overview of DM-Multipath
active/passive configuration
- definition, Overview of DM-Multipath
- illustration, Overview of DM-Multipath
alias parameter , Multipaths Device Configuration Attributes
- configuration file, Multipath Device Identifiers
B
blacklist
- configuration file, Configuration File Blacklist
- default devices, Blacklisting By Device Name
- device name, Blacklisting By Device Name
- device type, Blacklisting By Device Type
- WWID, Blacklisting by WWID
blacklist_exceptions section
- multipath.conf file, Blacklist Exceptions
C
checker_timeout parameter, Configuration File Defaults
configuration file
- alias parameter, Multipaths Device Configuration Attributes
- blacklist, Configuration File Blacklist
- checker_timeout parameter, Configuration File Defaults
- detect_prio parameter, Configuration File Defaults, Multipaths Device Configuration
Attributes
- dev_loss_tmo parameter, Configuration File Defaults, Configuration File Devices
- failback parameter, Configuration File Defaults, Multipaths Device Configuration Attributes,
Configuration File Devices
- fast_io_fail_tmo parameter, Configuration File Defaults, Configuration File Devices
- features parameter, Configuration File Defaults, Configuration File Devices
- flush_on_last_del parameter, Configuration File Defaults, Multipaths Device Configuration
Attributes, Configuration File Devices
- getuid_callout parameter, Configuration File Defaults, Configuration File Devices
50
Index
- hardware_handler parameter, Configuration File Devices
- hwtable_regex_match parameter, Configuration File Defaults
- max_fds parameter, Configuration File Defaults
- no_path_retry parameter, Configuration File Defaults, Multipaths Device Configuration
Attributes, Configuration File Devices
- overview, Configuration File Overview
- path_checker parameter, Configuration File Defaults, Configuration File Devices
- path_grouping_policy parameter, Configuration File Defaults, Multipaths Device
Configuration Attributes, Configuration File Devices
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