Notes When Installing The Multipath Driver - Fujitsu ETERNUS Multipath Driver V2 User Manual

Chapter 10 Notes when Using the Multipath Driver

10.3 Notes when Installing the Multipath Driver

• Red Hat Enterprise Linux 6 or Red Hat Enterprise Linux 7
Create xxxx.conf under /etc/modprobe.d/ and specify the link speed in the file.
• SUSE Linux Enterprise Server 9, SUSE Linux Enterprise Server 10, or SUSE Linux Enterprise Server 11
The link speed can be specified in /etc/modprobe.conf.local.
10.3 Notes when Installing the Multipath Driver
■
Connection between the server and the storage system during installation
When using a multipath configuration, the server and the storage system must be connected after installing
the Multipath Driver. If a multipath connection is configured without installing the Multipath Driver, data in
the storage system may be corrupted.
If a multipath connection is already configured but the Multipath Driver is not installed, stop all the
applications that access the storage system until the installation of the Multipath Driver is complete.
■
by-path name for udev function
After installing the Multipath Driver, the "by-path" name that was created by the udev function as the storage
system device name cannot be used.
When installing the Multipath Driver in an environment that uses the "by-path" name as the storage system
device, change all the settings that need to use the "by-id" name before installation.
■
When using Xen kernel
The Multipath Driver supports the Xen kernel that is provided by Red Hat Enterprise Linux 5. Note that the
Multipath Driver can be installed only in Dom0. Do not install the Multipath Driver in DomU.
■ When the "!!! WARNING !!!" message appears when executing the "mpdpkgadd" command,
the "mpdpatchadd" command, or the "mpdsetup" command
Refer to "Appendix 1" in the software information (readme.pdf).
■ Notes for iSCSI connection
Connections between a server using iSCSI Initiator and a storage system are supported in the conditions that
are described below. For the procedure on how to start using an iSCSI connection, refer to "Appendix 2" in the
software information (readme.pdf).
• Red Hat Enterprise Linux 5 (Update 4 or later)
• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 7
• SUSE Linux Enterprise Server 9 (Service Pack 3 or later)
• SUSE Linux Enterprise Server 10 (Service Pack 2 or later)
• SUSE Linux Enterprise Server 11 (Service Pack 1 or later)
FUJITSU Storage ETERNUS Multipath Driver V2 User's Guide for Linux
Copyright 2014 FUJITSU LIMITED
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