Product specifications

3 – Getting Started

D000006-000 Rev A 3-3

ssh is used, no additional manual steps are require at this stage (typically Linux

OS installation will enable ssh)

Alternatively, if its desired to use rsh during fabric installation and/or operation,

the following steps must be performed on each node such that the IB

Management Node can login using rsh as user root.

a. Each node must be configured such that the IB management node can rsh

into it. The IB management node must also be able to rsh into itself.

Typically this requires that a .rhosts file be created in /root such as:

<mgmthost name> root

<mgmthost name.domain name> root

localhost root

where mgmthost is the network name of the IB Management Node and

domain is the network domain name of the master. The .rhosts file must

have permissions of 640. Also, rsh should be enabled on each node.

Enable rsh by editing the /etc/xinetd.d/rsh file and setting:

disable=no

This can also be accomplished using:

chkconfig rsh on

Also enable rexec and rlogin using the above steps.

b. Execute mv /etc/securetty /etc/securetty.bak

6. (All) TCP/IP Host Name resolution:

Fast Fabric and TCP/IP will need to resolve hostnames to Management

Network and/or IPoIB IP addresses. If the management network is not IPoIB,

each host will need both a management network name and an IPoIB network

name. In which case, a recommended convention is to use the actual hostname

as the management network name and <HOSTNAME>-ib as the IPoIB network

name (where <HOSTNAME> is the management network name of the given

host)

Typically name resolution is accomplished by configuring a DNS server on the

management network with both management network and IPoIB addresses for

each host (and QLogic internally managed IB chassis). Alternately a /etc/hosts

file may be created on the IB Management node. Fast Fabric can then

propagate this /etc/hosts file to all the other hosts.

If using the /etc/hosts approach:

On the master node, add all the Ethernet and IPoIB addresses into the

/etc/hosts file. For the IPoIB convention, use <HOSTNAME>-ib. The

localhost line should not be edited.