I believe that you can enable broadcast for heartbeats by changing the following value from multicast to broadcast in /etc/cluster/cluster.conf on all clustered nodes. The CMAN service will need to be restarted on each node as well. Be sure they become quorate again with the following command below.
We run two p5 nodes running AIX 5L in a cluster mode (HACMP), both the nodes share external disk arrays. Only the primary node can access the shared disks at a given point of time.
We are in the process of adding two new disks to the disk arrays so as to make them available to the existing... (3 Replies)
Hello,
I have a quick question regarding POWER HA ( HACMP ) 5.5 ;
I have four ethernet adapters
en0
en1
en2
en3
en0 is configured as BOOT_IP with IP address
all other ethernet adapters are empty en1 / en2 / en3
so when I configure the service IP and start HACMP , the service IP... (2 Replies)
Hi,
I have a IBM Power series machine that has 2 VIOs and hosting 20 LPARS.
I have two LPARs on which GPFS is configured (4-5 disks)
Now these two LPARs need to be configured for HACMP (PowerHA) as well.
What is recommended? Is it possible that HACMP can be done on this config or do i... (1 Reply)
I just had this idea of using Android (a linux derivative) to monitor heart rates of patients with a history of cardiac problems. There are plenty apps around that monitor heart rates, but none for people that require medical attention when their heart rate drops below a certain level for more... (0 Replies)
Hi everyone. Our professor in Operating Systems gave us a research work about the Heart OS and Love OS. We were told that they were old operating systems from UNIX but I couldn't find any information about them from google. I hope someone here could point me to the right direction. Thanks! (7 Replies)
Hello,
can someone please suggest me in configuring the mysql db on redhat cluster, I have few questions.
1. where do I have to configure heart beat links, and is there any file in the redhat cluster that we update it to use these ipaddress and these interface on the node.
2. I am configuring... (0 Replies)
Discussion started by: bobby320
0 Replies
LEARN ABOUT SUSE
crm_uuid
CRM_UUID(8) [FIXME: manual] CRM_UUID(8)NAME
crm_uuid - get a node's UUID
SYNOPSIS
crm_uuid [-w|-r]
DESCRIPTION
UUIDs are used to identify cluster nodes to ensure that they can always be uniquely identified. The crm_uuid command displays and modifies
the UUID of the node on which it is run.
When Heartbeat is first started on a node, it creates a UUID (in binary form) in /var/lib/heartbeat/hb_uuid. This file can be read and
written by means of crm_uuid.
Note
There are very rare circumstances when crm_uuid should be used to modify the UUID file. The most common is when it is necessary to set
a node's UUID to a known value when creating a new cluster.
OPTIONS --write, -w
Write a UUID value to the /var/lib/heartbeat/hb_uuid file.
Warning
Use the -w option with care, because it creates a new UUID value for the node on which it is run. Various scripts across the
cluster might still use the old value, causing the cluster to fail because the node is no longer associated with the old UUID
value. Do not change the UUID unless you changed all references to it as well.
--read, -r
Read the UUID value and print it to stdout.
SEE ALSO
/var/lib/heartbeat/hb_uuid
AUTHOR
crm_uuid was written by Andrew Beekhof.
[FIXME: source] 07/05/2010 CRM_UUID(8)