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Intel Storage System SSR212PP User Guide 161
PRELIMINARY
Verifying the Failover Configuration for a Windows Server
STEP 1. If you connected a new server to an existing storage system, stop all applications
accessing the storage system and disable user logins to the server.
STEP 2. Launch PowerPath Administrator by double-clicking the PowerPath Monitor on the
Windows task bar.
STEP 3. On the left pane (summary pane), click EMC PowerPathAdministrator.
STEP 4. Under the server, right-click Disks.
The right (details) pane lists all the virtual disks in each storage system connected to the
server.
Storage ID identifies each storage system. For each disk, the Path Status and the
Path Metric columns give the status of the paths to the disk. When all n paths to a disk are
working, the
Path Status for the disk is optimal and the Path Metric for the disk is n/n,
indicating that n of n paths are working. If only m paths are working, the path metric is
m/n.
STEP 5. Verify that all n paths to the disks in the storage system are working, that is, their status is
optimal and their path metric is n/n. If not all the paths are working, refer to the
"Troubleshoot" section on the SSR212PP support website or the SSR212PP-Series
Documentation CD.
STEP 6. For each HBA connected to the storage system:
a. Start writing data to a virtual disk.
b. Disconnect the cable from oneHBA connected to the storage system.
c. After several seconds, look at the
Details pane and verify that one or more of the disks
in the storage system have red slashes through them, their status is degraded, and their
path metric is m/n, where n is the number of paths to the disk and
m is the number of
working paths, which is less than n. For example, if the server has 4 paths to a disk in
the storage system and 1 path fails when you disconnect the cable, then n=4 and m=3,
so the path metric is 3/4.
d. Reconnect the cable that you disconnected from the HBA.
e. Right-click the
PowerPath Monitor icon on the task bar, and select All Tasks and
Restore All Devices.
f. After several seconds, look at the details pane and verify that none of the disks in the
storage system have red slashes through them, their status is optimal, and their path
metric is n/n.
STEP 7. Restart any applications that you stopped and re-enable any user logins to the server that
you disabled.