IBM High Performance Storage System HPSS, Installation Manual

Page: 129 / 311

4.6. Setup Network Parameters
•
Install and configure all network interfaces and corresponding network connections.
Refer to IBM's internal network technologies home page for resources on configuring and
tuning networks and TCP/IP.
The network interfaces section of the lsnode report from each node shows the network
interfaces that are configured.
To determine how many network interfaces are available on (AIX):
% lsdev -C -S a -c if
% netstat -i
To determine how many network interfaces are available (Linux):
% netstat -i
To determine if an SP switch is available (AIX):
% lsdev -C -S a -l css0
% netstat -i
To view all IP addresses associated with a local host on AIX (i.e., for all network interfaces):
Note: Does not work for SP switch interface .
% for x in `lsdev -C -S a -c if -F name`; do
lsattr -E -a netaddr -l $x -F value
done
To view additional information for each network interface (AIX):
% for x in `lsdev -C -S a -c if -F name`; do
ifconfig $x
lsattr -El $x
done
For non-AIX platforms, use the Name column from netstat -i in the ifconfig commands.
Note the IP address follows the inet phrase in the output from the ifconfig command.
To test whether an IP address is reachable (non-zero exit status indicates the ping was not
successful):
% ping -c 1 <ipAddress>
•
Isolate Kerberos communication to the designated control network(s) on all HPSS and DB2
nodes in order to separate the HPSS control and data paths.
•
Place all HPSS, DB2, and Kerberos server node IP addresses in a local host table ( /etc/hosts ).
For AIX, configure the node to use the table as backup in the event of a DNS failure. The file
/etc/netsvc.conf should be modified to look like the following:
hosts=bind,local
The netsvc.conf file is used to specify the ordering of host name resolution. In the above
ordering, DNS will be used first; if the host name is not found, then the local /etc/host file
HPSS Installation Guide July 2008
Release 6.2 (Revision 2.0) 129