cmclnodelist and SG 11.20

[Manix]

In 11.20 user guide i may see that SSH connections may be established between nodes
via following DSAU SG specific commands

csshsetup -r node2

csshsetup -r -f /etc/cmcluster/sshhosts

Further cmpreparecl & cmdeploycl can be used

cmdeploycl –c cluster1 –n ftsys9 –n ftsys10 -N
$SGCONF/mynetwork –b –L /dev/vglock:/dev/cdsk/disk13

This command in this example does the following:
• Calls cmapplyconf (1m) to configure the heartbeat subnets specified in
$SGCONF/mynetwork
• Updates $SGCONF/cmclnodelist, /etc/hosts, /etc/nsswitch.conf,
and /etc/inetd.conf on each node.

I am little confused with this & want to confirm if "cmclnodelist" is still needed prior to SG 11.20 as i haven`t seen "csshsetup" command prior to 11.20.

Are we still using "cmclnodelist" for initial
cluster formation.

[Uday_S_Ankolekar]

I recently configured SG cluster with 11.20
and I used cmclnodelist and also configured ssh before I compile the cluster configuration file.
in 11.20 there are lots of new commands introuduced to ease implementation process.

Easy deploy provides support to create cmclnodelist file on unconfigured cluster nodes.

Good Luck,

USA..

[Manix]

Hello Uday !!

I have following points here:-

1 ) We are still using cmclnodelist ( for
bootstrapping ) the cluster ,first time
only

2 ) from 11.16 onwards cmclnodelist file
based security policy has changed to
ACL /role based policy mentioned in
cluster.ascii files.

3 ) But in 11.20 first time i saw password
less "ssh" feature as in VCS from
very beginning, so does it means we
may skip .remsh .i.e "cmclnodelist"
completely from this version itself
even for bootstrapping the cluster.

4 ) We have some easy deployment commands
executed from DSAU .Do we need any
additional SG component for this.

5 ) of course cmdeploycl ,cmpreparelcl &
similar bunch of commands are gift
to all of us -). Easy deployment is
really a cool feature.