IBM SG24-5131-00 Benutzerhandbuch
© Copyright IBM Corp. 1999
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Chapter 6. Cluster Testing
Before you start to test the HACMP configuration, you need to guarantee that
your cluster nodes are in a stable state. Check the state of the:
your cluster nodes are in a stable state. Check the state of the:
• Devices
• System parameters
• Processes
• Network adapters
• LVM
• Cluster
• Other items such as SP Switch, printers, and SNA configuration
6.1 Node Verification
Here is a series of suggested actions to test the state of a node before
including HACMP in the testing.
including HACMP in the testing.
6.1.1 Device State
• Run
diag -a
in order to clean up the VPD.
• Look in the errorlog for unusual errors by issuing the command
errpt |
more
or
errpt -a | more
.
• Check that all devices are in the available state (
lsdev -C | more
).
• Check that the SCSI addresses of adapters on shared buses are unique
(
lsattr -E -l ascsi0
).
• If you are using target mode SCSI networks, check the connection by
issuing
cat < /dev/tmscsi#.tm
on the first node and
cat /etc/hosts >
/dev/tmscsi#.im
(enter twice!) on the second node where
#
is the
appropriate tmscsi device number. Repeat the test in the other direction.
Note that cluster services must be stopped on both nodes to perform this
test.
Note that cluster services must be stopped on both nodes to perform this
test.
• To check a serial line between two nodes type
stty < /dev/tty#
on both
nodes where
#
is the appropriate tty device number for the RS232
heartbeat connection. Note that cluster services must be stopped on both
nodes to perform this test.
nodes to perform this test.