Red Hat DEVICE-MAPPER MULTIPATH 5.2 Manual do Utilizador Página 13

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Chapter 3
For Red Hat Enterprise Linux 5
This chapter describes how to set up a multipath environment, and the points to be checked after setup
when the server is running RHEL5.
3.1 Setting Up the device-mapper multipath
Set up the multipath environment.
3.1.1 Preparation
device-mapper multipath uses Red Hat Package Manager (RPM) packages.
If the RPM versions are not listed in the Server Support Matrix, use the RPM supplied as standard in the OS.
3.1.2 Editing "/etc/multipath.conf"
Edit the device-mapper multipath configuration file.
Create a configuration file as follows.
1 Comment out the following three lines in "/etc/multipath.conf".
# blacklist {
# devnode "*"
# }
If any internal disks or other devices are to be excluded from the multipath configuration, specify the
excluded devices in the "blacklist" section. If required, refer to the Red Hat web-site for details.
2 Confirm that the following description is present.
## Use user friendly names, instead of using WWIDs as names.
defaults {
user_friendly_names yes
}
Enter a space between "defaults" and "{".
13
FUJITSU Storage ETERNUS DX Configuration Guide -Server Connection-
(Fibre Channel/FCoE/iSCSI/SAS) for Linux
Copyright 2015 FUJITSU LIMITED
P3AM-3912-21ENZ0
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