DRBD is a Distributed Replicated Block Device. Developed by LinBit it is now part of the standard-linux-kernel. Regard it as RAID 1 across an IP-network using any type of block device. Normally only the "primary" side can write.
Questions tagged [drbd]
283 questions
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How to determine Master priority in HA cluster based on connected interfaces
I want to make a DRBD cluster of 2 servers. Both have 2 interfaces bonded together. I want to be able to determine the master role based on connection metric. i.e how many of the network interfaces are connected (not based on ping).
By default…
bakasan
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1 answer
SQL Server 2017 crashed during startup on Ubuntu with Pacemaker failover
I have installed mssql-server and mssql-server-ha on Ubuntu Server 16.04 LTS. I'm using drbd on two nodes, with pacemaker and corosync attempting to control the automatic failover between the two nodes. crm status shows 2 errors:
Failed Actions:
*…
Ben M
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DRBD Status after Network fail become Primary/Unknown
i have the following structure:
2 nodes.
corosync + pacemaker + DRBD + OCFS2.
==============
After test Network fail the status from DRBD become:
****Primary/Unknown****
dmesg show the following:
Split-Brain detected but unresolved, dropping…
Saleh Alashkar
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2 answers
Correct use of Pacemaker's ocf-tester with OCF resource agents
I have got a setup with DRBD, Corosync, and Pacemaker in which Pacemaker should mount a file system atop a DRBD block device on different cluster nodes, depending on nodes' availabilies. The setup is not yet fully working, therefore I try testing…
rookie09
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Can't start drbd service and can't set primary node with DRBD 8.4 on CentOS 7.3
Using two nodes to install DRBD.
node1
node2
Followed this guide:
http://www.learnitguide.net/2016/07/how-to-install-and-configure-drbd-on-linux.html
On both nodes
resource testdata1 {
protocol C;
on node1 {
device /dev/drbd0;
…
cloud_cloud
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drbd with IPv4 fallback
I was setting up DRBD over IPv6, I want to ask if it is possible to provide both IPv4 and IPv6 addresses in address section like below.
on server1 {
disk /dev/sdb1;
address 140.X.X.X:7788;
address ipv6…
Prabin Dahal
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1 answer
Which technology allows shared storage for clusters with preferred local reads and writes?
I have two or three somewhat older servers of type HP ProLiant DL380 G6/7 with only x * 1 GBit Ethernet, but quite some CPU power, RAM and capable of a fair amount of local storage. I'm interested in building a small cluster-like setup of two or…
Thorsten Schöning
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2 answers
Asynchronous file replication over long distances, with buffering
I'm looking for a filesystem that can replicate over long distances, and tolerate being offline for extended periods of time by using a local buffer, which should be a disk buffer, to queue up changes to replicate.
DRBD was an ideal candidate with…
Gerber
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Configure STONITH for esxi host CentOS guests
I am just doing some initial researching into STONITH and am finding that it can require Hardware to reset the failed nodes. Something called an IPMI can be used. I was wondering how something like this factors into a virtual environment? Does…
FreeSoftwareServers
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Passing SAN Storage to Virtual Machine in active/passive HA Cluster
I need to attach a fibre channel SAN disk to one virtual machine that resides on an active/passive cluster (pacemaker, corosync). As it is the backup storage, corruption has to be strongly avoided. Although using fencing, is it enough to trust that…
alexander belov
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1 answer
how to make a Virtual ip on a 2 nodes cluster
i have a specific question, her's my situation :
1- 2 vms with drbd - pacemaker - corosync - NFs
- here's my crm configuration :
node san1
node san2
primitive drbd_res1 ocf:linbit:drbd \
params drbd_resource="res1" \
op monitor…
chubby.skelton
- 15
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1 answer
Using heartbeat with systemd
I'm using a simple setup with heartbeat handling a shared filesystem implemented with drbd and served via apache.
I'm using /etc/ha.d/haresources to define the ha resource, this way:
server1 drbddisk::myfs…
Alessandro Polverini
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0 answers
DRBD server not starting - error in creating netlink socket
I have a newly configured DRBD-Cluster 8.4.5 on 2 VM running ubuntu 14.04, following this example: http://geekpeek.net/configure-drbd-ubuntu/
Unfortunatelly I can not start the service. It seems to be either a network setup problem or maybe a…
merlin
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DRBD always causing splt brain after restart
I'm absolutely new to the whole cluster topic (pacemaker with DRBD, etc) and in general new to linux (using it on a daily basis for about two months now). Actually I'm playing around with a simple Apache cluster, accessing a shared DRBD mounting…
Juke
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Run Server from Clustered File Server DRBD & GFS2
We are trying to eliminate a single point of failure for our files without a SAN. We currently have a single server for file serving (locally), web server, and database (in VM). Looking at using DRBD with GFS2 to create a cluster file system and…
Damon
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