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Questions tagged [fencing]

13 questions
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corosync/pacemaker/fencing - passive/active cluster with 2 nodes

I'm configuring a cluster 2 nodes with pacemaker/corosync, and I have some question about it (and maybe best practice : i'm far to be specialist) **OS:** redhat 7.6 I configurated the cluster with those properties - **stonith-enabled:** true -…
drkmkzs
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How Ganeti deals with Fencing

I found out that proxmox doc says a lot abou Fencing. I haven't found anything about it in Ganeti doc. Also I screeched Ganeti Google Group Archive and I found similar question but answer was that Split Brain is not a problem in Ganeti and…
Maciek Sawicki
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SLES 12 High Availability Cluster - scsi persistant reservation fencing

I'm trialling SLES 12 w/ HAE to run a Fileserver cluster consisting of two nodes. Idea was to use SCSI persistant reservation as a fencing method using the fence_scsi script from stonith fence agents. Two nodes (a, b) are connected via FC to the…
vobelic
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What fence device setup would prevent a mutual-STONITH in a two-node RHEL cluster?

I've got a Red Hat cluster (corosync+rgmanager) software on RHEL 6.6 on physical Dell servers with iDRAC. This cluster is for stateless application (stunnel, a TLS gateway), so it doesn't need and doesn't have any shared disk. I prefer to keep this…
kubanczyk
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Why to use fencing when you already have redundant communication links?

This article stays that you should use both fencing (aka STONITH) and redundant communication links. I'm trying to understand what benefits STONITH gives in case of split-brain. Consider for example you have node A, node B, STONITH device that are…
andrershov
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Simple fencing/STONITH script in Centos 7

I am installing a simple Corosync/pacemaker/drbd high availability cluster using Centos 7 and would like to provide fencing/STONITH using custom hardware (power switches using USB connections). As such, I need to add these devices as STONITH…
C-Otto
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How to configure fencing delay in master/slave cluster with DRBD and Pacemaker?

I have a pacemaker cluster for DRBD primary/secondary setup and Virtual IP. I would like the master node to immediately shoot the slave, while the slave will have to wait for 15 seconds before shooting the master. My current config is something…
bakasan
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How to: fencing in 2 nodes cluster with iLO 4?

I have configure a 2 node (master/slave) cluster on HP GL360p servers with iLO 4. OS is centos 7 and I am using pcs with pacemaker and corosync. I want to implement fencing but I can't find any documents about how to get started with it. My…
bakasan
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Fence device for RHEL cluster node on vmware workstation

I have a host with Windows 7. I installed VMware Workstation where I have installed two virtual machines. Each virtual machine is a rhel 6.2 node running clustersuite. Do you know which fence device I can use in order to configure the cluster?
NoNoNo
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Red Hat Clustering Fencing fails

I'm trying to demo (and learn) a Red Hat Cluster on ESXi 3.5 update2.I've set a shared fencing device with the info for my ESXi server. I try fencing a node from Luci, but it only tells me that fencing failed. Messages log has following agent…
girishvmware
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How to use "fence_vbox" as fencing device in Virtual Box?

I'm just learning about clustering. And now I'm so curious about fencing device using stonith fence_vbox for Virtual Box. I'm searching for documentation about fence_vbox, but no found specific documentation about how to use it. If you have…
M. Fachrizal Utama
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Configure and connect fence device through proxy server?

I'm setting up a cluster with Pacemaker and Corosync (from Clusterlabs). It works fine but i need to configure the fencing. Servers run on a VMWare ESXi infrastructure. I have a frontend server (with an public IP address) configured with Nginx as a…
BeWog
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Configuring STONITH on non-shared disk cluster

I have configured a 2 node (VMs) cluster with SUSE High Availability Extension. The cluster doesn't use shared disk. So Stonith is not really required. But the cluster keeps on asking for Stonith. So what basic stonith can i create ??
Dnd
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