
Appendix A: Configuration Files, Images,
Etc.
This appendix contains various configuration files, images, tar/zip files used in the
construction of the infrastructure or in the various use cases demonstrated.
A.1 Management Nodes
A.1.1 multipath.conf.template
The multipath.conf.template file provides the settings to multipath for the specific hardware in
use in this configuration. It is called a template because the aliases for the WWIDs of volumes
created are appended to create the device-mapper multipath configuration file
/etc/multipath.conf.
defaults {
udev_dir /dev
polling_interval 5
selector "round-robin 0"
path_grouping_policy multibus
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
prio_callout /bin/true
path_checker readsector0
rr_min_io 100
max_fds 8192
rr_weight priorities
failback immediate
no_path_retry 5
user_friendly_names yes
}
devices {
device {
vendor "HP"
product "MSA2[02]12fc|MSA2012i"
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
hardware_handler "0"
path_selector "round-robin 0"
path_grouping_policy multibus
failback immediate
rr_weight uniform
no_path_retry 3
rr_min_io 100
path_checker tur
}
device {
vendor "HP"
product "MSA2312fc|MSA2324fc"
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
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