Promise Technology E610f Manual Pagina 417

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Task 5: Setting-up ALUA
395
Task 5: Setting-up ALUA
VTrak supports Asymmetric Logical Unit Access (ALUA) on the latest Linux
distributions:
RedHat Linux RHEL 5.4
RedHat Linux RHEL 5.5
SuSE Linux SLES 10 SP3
SuSE Linux SLES 11
SuSE Linux SLES 11 SP1
PROMISE provides RPM packages and multipath.conf files for ALUA. See
“RPM Packages and Documents for Linux MPIO” on page 400.
RedHat Linux RHEL 5.4
Default Kernel
To support ALUA within RHEL 5.4 using the default kernel without XEN or PAE
support:
1. Install RHEL 5.4. When the CD is chosen for installation, immediately type
linux mpath.
2. Copy the PROMISE-supplied multipath.conf file to the /etc directory.
cp multipath.conf-vtrak-alua-rhel5-4 /etc/multipath.conf
3. Install the appropriate scsi_dh_alua driver module.
•i386
cd /usr/src/redhat/RPM/i386
rpm -ivh scsi_dh_alua_VTrak-1-1.i386.rpm
x86_64
cd /usr/src/redhat/RPM/x86_64
rpm -ivh scsi_dh_alua_VTrak-1-1.x86_64.rpm
4. Check the multipath configuration.
Multipath -ll (multipath -v4)
Kernel with XEN or PAE support
To support ALUA within RHEL 5.4 using kernel with XEN or PAE support:
1. Install RHEL 5.4. When the CD is chosen for installation, immediately type
linux mpath.
2. Copy the PROMISE-supplied multipath.conf file to the /etc directory.
cp multipath.conf-vtrak-alua-rhel5-4 /etc/multipath.conf
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