HP 1500 cs Installation page 3

5. Obtain the Device Specific Module (DSM) from the link on
the Software, Firmware & Drivers page of the MSA web site
and install it on the servers. (The DSM provides support for
MPIO on the MSA.)
When prompted, restart the server.
Note: Clustered-server environments must install the DMS by doing
the following:
Using Cluster Administrator, pause node 2, and make sure that it
does not own any of the cluster resources.
Install the DSM on node 2, restarting the server when prompted.
Resume node 2.
Move all cluster resources to node 2, and then pause node 1.
Install the DSM on node 1, restarting the server when prompted.
Move all cluster resources back to node 1.
6. Connect the cables to the redundant path.
7. Verify that basic failover protection is enabled.
View the system event logs, and look for informational
messages stating that MPIO was successfully enabled.
See Figure 1 and Figure 2
Enabling Linux basic failover
Basic failover capability is included in the QLogic® HBA driver,
used in Linux environments.
1. Verify that other multipathing software, such as Secure Path,
is not present on the system.
If other multipathing software is currently installed, do not
proceed with these instructions.
Either continue using your previous solution, or completely
uninstall that solution from your environment.
2. Verify that MSA controller firmware that supports basic
multipathing is installed on your MSA.
MSA1000: 4.32 or later
MSA1500 cs: 4.82 or later
To determine the current version of installed MSA firmware,
scroll through the messages on the controller LCD panel,
until the firmware version is displayed.
If an update is necessary, obtain and install new firmware
from the Software, Firmware & Drivers page of the MSA web
site.
3. Verify that the currently supported version of HBA firmware
and driver is installed on each server.
To determine the latest available HBA firmware and driver
versions, refer to the MSA Compatibility Guide, available on
the MSA web site.
To determine the currently installed HBA firmware and driver
versions, view the monitor during the startup process of the
server, or after the startup process is complete, view the HBA
device files in
/proc/scsi/qla2300/
If an update is necessary, obtain and install the HBA
components from the link on the Software, Firmware &
Drivers page of the MSA web site.
Follow the instructions provided in the readme.txt file to
install and enable multipathing failover support.
4. Verify that basic failover protection is enabled.
View the system message logs, and look for informational
messages stating that multipathing was successfully enabled.
for example displays.
.
Monitoring system status
In addition to system status information, the following tools
provide notification of failover events. As a best practice, review
these tools often to ensure efficient system operation.
MSA controller LCD panel
System event logs/message logs
Device Manager (Windows only)
Optional management software, such as Systems Insight
Manager (SIM)
MSA controller LCD panel status information
Review messages on the MSA controller LCD panel, including:
Informational
40 BEGIN
REDUNDANCY
SUPPORT
Informational
41 REDUNDANCY
ACTIVE-ACTIVE
CONTROLLER
Informational
42 REDUNDANCY
ACTIVE-STANDBY
CONTROLLER
System event log status information
The following image illustrates an informational message stating
that MPIO is protecting this LUN. A message similar to this is
created for each LUN on the MSA.
Figure 1: Event message showing multipath support
The MSA controllers
are attempting to
enter redundant
mode.
The MSA controllers
are in redundant
mode. This is the
Active controller.
The MSA controllers
are in redundant
mode. This is the
Standby controller.