Red Hat DEVICE-MAPPER MULTIPATH 5.2 Manuel d'utilisateur Page 1

FUJITSU StorageETERNUS DXConfiguration Guide -Server Connection-(Fibre Channel/FCoE/iSCSI/SAS) for Linuxdevice-mapper multipathP3AM-3912-21ENZ0

The "product" value varies depending on the ETERNUS DX that is to be connected.Refer to the following table for the appropriate value.ETERNU

2.2 Checking the device-mapper multipathAfter they have been enabled, confirm the device-mapper multipath settings.2.2.1 Recognizing the Post device-m

•Multipath (the "2:0:0:X" side) is in error status (This example shows when two paths are used to connect tothe ETERNUS DX80)# multipath -ll

Chapter 3 For Red Hat Enterprise Linux 5This chapter describes how to set up a multipath environment, and the points to be checked after setupwhen the

3 Add the following lines at the end of the file.• For ETERNUS DX storage systems(This example is for the ETERNUS DX80)devices { device {

3.1.4 Rebooting the Linux ServerReboot the Linux server.Example:# shutdown -r now3.2 Checking the device-mapper multipathAfter they have been enabled,

3.2.2 Checking the device-mapper multipath Status and Created DevicesCheck the path status using the "multipath -ll" command. Check that the

Chapter 4 For SUSE Linux Enterprise Server 12 or SUSE LinuxEnterprise Server 11This chapter describes how to set up a multipath environment, and the p

Add the following lines at the end of the "devices" section.(This example is for the ETERNUS DX410)devices { device { v

• For SLES12, if any internal disks are to be excluded from the multipath configuration, make sure tospecify the excluded devices in the "blackl

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4.2.1 Recognizing the Post device-mapper multipath LUNsCheck the device file created by the device-mapper multipath.Example:# cd /dev/mapper# ls -ltot

4.2.2 Checking the device-mapper multipath Status and Created DevicesCheck the path status using the "multipath -ll" command. Check that the

Chapter 5 For SUSE Linux Enterprise Server 10This chapter describes how to set up a multipath environment, and the points to be checked after setupwhe

Add the following lines at the end of the "devices" section.(This example is for the ETERNUS DX410)devices { device { v

5.1.1.3 Enabling the device-mapper multipathEnable the device-mapper multipath, using the following commands.# insserv boot.multipath multipathd # chk

5.1.2 Checking the device-mapper multipathAfter they have been enabled, confirm the device-mapper multipath settings.5.1.2.1 Recognizing the Post devi

5.2 For SUSE Linux Enterprise Server 10 SP2 or Earlier5.2.1 Setting Up the device-mapper multipathSet up the multipath environment.5.2.1.1 Preparation

• Enter a space between "defaults" and "{".• Enter a space between "devices" and "{".• Enter a space between

5.2.1.4 Rebooting the Linux ServerReboot the Linux server.# shutdown -r nowAfter rebooting, the following warning message may appear in the "/var

•Multipath (the "5:0:0:X" side) is in error status (This example shows when two paths are used to connect tothe ETERNUS DX410)# multipath -l

PrefaceThis manual briefly explains the operations that need to be performed by the user in order to connect anETERNUS DX Disk storage system or an ET

FUJITSU Storage ETERNUS DX Configuration Guide -Server Connection-(Fibre Channel/FCoE/iSCSI/SAS) for Linuxdevice-mapper multipathP3AM-3912-21ENZ0Date

The Contents and Structure of this ManualThis manual is composed of the following five chapters.•"Chapter 1 Workflow" (page 7)This chapter d

Table of ContentsChapter 1 Workflow 7Chapter 2 For Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 6, or Oracle Li-nux 82.1 Setting Up the dev

Chapter 5 For SUSE Linux Enterprise Server 10 225.1 For SUSE Linux Enterprise Server 10 SP3 or Later ...

Chapter 1 WorkflowSet up and check the device-mapper multipath. The workflow is shown below. WorkflowSetting Up the device-mapper multipathSet up the

Chapter 2 For Red Hat Enterprise Linux 7, Red Hat Enter-prise Linux 6, or Oracle LinuxThis chapter describes how to set up a multipath environment, an

3 Confirm that the following description is present.## Use user friendly names, instead of using WWIDs as names.defaults { user_friendl