[DRBD-user] fence-peer

cesar brain at click.com.py
Wed Jul 3 22:34:02 CEST 2013

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Hi guys and Mr. Kaloyan Kovachev

@ To anyone that can help me with this problem

@ Kaloyan Kovachev:
Many thanks for your kind attention and your time,
but I don't understand you very well,
I'm no expert in cluster configurations, and do not speak English well (but
eager to learn),
so if you can help me, please speak me in a easy mode for me.

I'll be very grateful if you can help me

Please read all this message, and if you can help me, please let me know

if you need more details of anything, please let me know (for example my
cluster configuration file)

Let me tell you what I want:
As i have DRBD on two Nodes, i want to built fencing handlers for freeze IO
during the disconnected period, reconnect automatically and quickly, and
replay pending buffers, without any reset", and if this is possible, must
works without use any addtional software for Clusters, ie without RHCS,
RHCM, Pacemaker, Openais, heartbeat, etc.

*My scenary:*
- I have 2 Proxmox Nodes in the same LAN, the Proxmox VE HA Cluster is based
on proven Linux HA technologies
Please see:  http://pve.proxmox.com/wiki/High_Availability_Cluster
- I have DRBD in each Proxmox Node for my KVM VMs (for use as virtual Hard
- I have configurated "manual_fence" for my Proxmox Nodes. ie that in case
of failures, I must disconnect the electric current brutally and after by
CLI I apply my "manual_fence" for get HA. This technique works well for me,
so i don't need extra cluster configurations of Linux HA for DRBD.
- All the Proxmox Nodes have ssh comunication without need to enter password

*My questions:*
1- Can I enable automatic reconnect of resources of DRBD in my Proxmox Nodes
in case of resources DRBD are disconnect?
2- Is necessary configure only the DRBD configuration files, or i need to
make others configurations of cluster (for example on Linux HA)?
3- If you can help me, please write with a example of each configuration
file (because i don't understand many theoretical explanations. For this
purpose, my nodes are called "kvm5" and "kvm6" respectively.
kvm5 have:
IP for the Switch LAN communication =
IP for the DRBD communication (NIC to NIC) =

kvm5 have:
IP for the Switch LAN communication =
IP for the DRBD communication (NIC to NIC) =

Best regards

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