Short answer: this is perfectly normal. What happened was that an IP address was added to the interface without a differentiating label.
Believe it or not, the "ifconfig" application is strongly discouraged because it has a tendency to dramatize situations like this. It would probably have been removed years ago if not for legacy support.
Anyway, if you want to understand a bit more about what is happening, take a look at this iproute2 documentation. They explain that although all alias addresses are secondary addresses, the inverse is not necessarily true.
Then try the following:
Code:
[root@uscltest2 ~]# ip addr show dev eth0
[root@uscltest2 ~]# ip addr add 10.200.218.86/24 broadcast 10.200.218.255 dev eth0
[root@uscltest2 ~]# ip addr
[root@uscltest2 ~]# ifconfig
[root@uscltest2 ~]# ip addr add 10.200.218.87/24 broadcast 10.200.218.255 label eth0:alias dev eth0
[root@uscltest2 ~]# ip addr
[root@uscltest2 ~]# ifconfig
You will notice that after the first add, the output of "ip addr" showed the address, but the output of "ifconfig" did not. Additionally, when you added a label the second time, the output of "ip addr" still shows the address, but the output of "ifconfig" also show our new label. (which only says "eth0:alias" because we told it to - it could literally be anything)
After this little demo, reset things to normal:
Code:
[root@uscltest2 ~]# ip addr del 10.200.218.86/24 dev eth0
[root@uscltest2 ~]# ip addr del 10.200.218.87/24 dev eth0
Hi,
I have a Redhat Cluster Suite with 2 nodes, using option "Multicast HeartBeating" on clumembd, whith default IP: 225.0.0.11
The cluster member names are:
# grep node /etc/hosts
192.168.100.1 node1
192.168.100.2 node2
My problem is that the Multicast IP is relating to other network... (1 Reply)
Hi All,
One small request. In UNIX/LINUX we can have our own aliases in .bashrc file. My doubt is when we add a new alias and if it is tried in already opened terminals it will not work, may be it is not going to recognise. Bit when we use the same alias in new terminal it will work. I... (1 Reply)
HI All,
I have a small question/clarification/doubt . Does anyone know how to provide alias in the mails that come from Unix servers.
Like i have a Unix server that generates status mails every hour for a scheduled job , it sends me mails with status with the ID in from field as... (3 Replies)
Hi,
I am relatively new to Sun Solaris. I am installing 2 node cluster and when I was installing cluster suite 3.2 2/08, it is giving me this error as "Conflict - Incomplete version detected".
Please help me in this regard and also suggest me any valuable point to consider before going ahead... (3 Replies)
hi to all members in this forums .. Nice to meet you...
i only have a questions about command utility of "dd":
for example i will type:
pico trial
this is my file.
and save it and type chmod a+x trial
can there be a way that instead of typing:
dd if=trial of=trial.copy conv=ucase... (3 Replies)
HI
How can i configure fence_cisco_ucs with redhat cluster suite.
i was trying to configure fencing aganet with red ahat cluster suite
i issued command
# /usr/sbin/fence_vmware_soap -a 172.22.90.61 -l admin -p duc2Cisco -o reboot
then i got below error:
Failed: You have to... (0 Replies)
Hello,
I need to rediret the directory location at run time as:-
If I type cd /dir1/dir2 then it should take me to /dir1/dir3 at run time.
Inside dir1, both dir2 and dir3 directories are present.
Could anyone guild me over it?
Thanks
Shubham (5 Replies)
Discussion started by: shubh05
5 Replies
LEARN ABOUT CENTOS
rgmanager
clusvcmgrd(8) Red Hat Cluster Suite clusvcmgrd(8)NAME
rgmanager - Resource Group (Cluster Service) Manager Daemon
DESCRIPTION
rgmanager handles management of user-defined cluster services (also known as resource groups). This includes handling of user requests
including service start, service disable, service relocate, and service restart. The service manager daemon also handles restarting and
relocating services in the event of failures.
HOW IT WORKS
The service manager is spawned by an init script after the cluster infrastructure has been started and only functions when the cluster is
quorate and locks are working.
During initialization, the service manager runs scripts which ensure that all services are clear to be started. After that, it determines
which services need to be started and starts them.
When an event is received, members which are no longer online have their services taken away from them. The event should only occur in the
case that the member has been fenced whenever fencing is available.
When a cluster member determines that it is no longer in the cluster quorum, the service manager stops all services and waits for a new
quorum to form.
COMMAND LINE OPTIONS -f Run in the foreground (do not fork).
-d Enable debug-level logging.
-w Disable internal process monitoring (for debugging).
-N Do not perform stop-before-start. Combined with the -Z flag to clusvcadm, this can be used to allow rgmanager to be upgraded with-
out stopping a given user service or set of services.
SEE ALSO clusvcadm(8)
Jan 2005 clusvcmgrd(8)
06-15-2010
It would probably have been removed years ago if not for legacy support.