Multipath error reporting: Cannot open PowerPath. Initialization error

Suse 11 sp4 install powerpath 6.1x restart and execute command prompt to report an error:

Shell > powermt display dev=all

Powermt commands are failing with "ERROR: Cannot open PowerPath. Initialization error"

Resolve step 1:

Find a post through the official website: https://community.emc.com/docs/DOC-67557 found that this is a bug

Solution:

Use the following command on the host to update hwclock to the system clock:

Hwclock-systohc

This updates the hardware clock to the correct time on the host. Permanent fix: this issue will be fixed in PowerPath for Linux 6.3

After following the operation, it failed to start normally:

Resolve step 2:

Shell > cat / var/log/boot.log | grep PowerPath # check the log and find that the service has been stopped in China during the startup process

Shell > / etc/init.d/PowerPath start # Manual restart prompt DM-Multipath is active

Starting PowerPath: Aborting PowerPath start since DM-Multipath is active. Refer to PowerPath for Linux Installation and Administration Guide for more information

Failed

Resolve step 3

Since it is because: "start PowerPath: because DM Multipath is active, aborting PowerPath startup", then stop and try, then restart the system, restart multipath after entering the system, the problem is solved.

Shell > service multipathd stop

Stopping multipathd daemon: [OK]

Shell > chkconfig multipathd off

Shell > / etc/init.d/multipathd status

Multipathd is stopped

Shell > mpathconf-- disable

Reboot

Shell > / etc/init.d/PowerPath start

Starting PowerPath: done

Shell > powermt display dev=all