Product data

DotHill – Linux Device Mapper Multipath “How To” for Storage Revision 4

3. After completing the above steps reboot the host. To verify that the modules required by DM-

MP are loaded and the

multipathd daemon has started at boot time, run the following

commands:

# lsmod | grep dm_multipath

# lsmod | grep dm_mod

# ps ax | grep multipathd

5.2 RedHat Linux 5

For RedHat 5 the packages are (check for later versions):

device-mapper-1.01-1.6

multipath-tools-0.4.5-0.11

You must configure the host to start the Device Mapper Multipath daemon, multipathd, at boot

time. Installing the package will not make this happen. Refer to instructions for RedHat 4.

5.3 SUSE Linux 9

For SUSE 9 the packages are (check for later versions):

device-mapper-1.01.01-1.6

multipath-tools-0.4.7-75.21

You must configure the host to start the Device Mapper Multipath daemon, multipathd, at boot

time. Installing the package will not make this happen. Refer to instructions for RedHat 4.

5.4 SUSE Linux 10

For SUSE 10 the packages are (check for later versions):

device-mapper-1.02.13-6.9

multipath-tools-0.4.7-34.18

You must configure the host to start the Device Mapper Multipath daemon, multipathd, at boot

time. Installing the package will not make this happen. Refer to instructions for RedHat 4.

6 Configuration

6.1 Configuring the DotHill storage array for Multipathing