Lon Hohberger wrote:
On Tue, 2006-03-14 at 15:27 -0300, Allyson - Listas wrote:
Hi guys,
I'm new at redhat cluster suite. Could Anybody help me in some questions?
1st) I installed rhcs on 2 virtual machines and create a new cluster,
setup a manual fence, a failvoer domain, create a IP resource and a
service that uses just that IP for tests. Well, I'd like to know how can
I force a failover of the service between nodes. This option is not
available at system-config-cluster that allow just disable and enable
the service.
Drag it to the other node in the gui.
--> I couldn't find this option at gui, but i find how to do it at
command line..
[root@cs02 /]# clustat
Member Status: Quorate
Member Name Status
------ ---- ------
cs01.example.com Online, rgmanager
cs02.example.com Online, Local, rgmanager
Service Name Owner (Last) State
------- ---- ----- ------ -----
vip50 cs02.example.com started
oracle-ha-fs cs02.example.com started
[root@cs02 /]# clusvcadm -r oracle-ha-fs -m cs01.example.com
Trying to relocate oracle-ha-fs to cs01.example.com...success
[root@cs02 /]# clusvcadm -r vip50 -m cs01.example.com
Trying to relocate vip50 to cs01.example.com...success
[root@cs02 /]# clustat
Member Status: Quorate
Member Name Status
------ ---- ------
cs01.example.com Online, rgmanager
cs02.example.com Online, Local, rgmanager
Service Name Owner (Last) State
------- ---- ----- ------ -----
vip50 cs01.example.com started
oracle-ha-fs cs01.example.com started
I noticed that the ip service created is not a virtual
interface like eth0:1, but it was working because I could ping it, Is it
Normal?
Yes, try "/sbin/ip addr list", which is noted in the documentation.
tks
2nd) What is the real fuction of a fence device?
Prevent data corruption in the event of a live-hang of a node with
outstanding dirty buffers.
3rd) How can I setup a quorum device, and isn't necessary for a failover
service? I read that it was needed at rhel3 but at rhel4 is not
anymore, could you explain me that.
What do you need to know? It's not needed because of the way CMAN
recovers - see
http://people.redhat.com/teigland/sca.pdf
-- Lon
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Allyson A. Brito
MSN: allysonbrito78@xxxxxxxxxxx
SKYPE: allysonbrito
RHCE / LPI-1 / SCSA
OCP DBA 9i / OCA PL/SQL 9i
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