Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [drbd]

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.

283 questions
1
vote
0 answers

DRBD device temporarily disappearing across different kernel versions?

After upgrading from an old kernel to a new kernel version and booting into the new kernel the DRBD logical device was gone. Think nothing under /proc/drbd. This is a major problem as I have DRBD running in a cluster, with a heartbeat running…
user
  • 123
  • 8
1
vote
1 answer

Running a DRBD cluster having two different versions

Is it safe to have a cluster composed of two servers one running DRBD 8.0 one running DRBD 8.3 or 8.4 Currently there is only one DRBD server with the 8.0 data. Will the new added server on DRBD 8.[34] as secondary immediately recognize the…
Déjà vu
  • 5,546
  • 9
  • 36
  • 55
1
vote
1 answer

Split brain on DRBD and Pacemaker cluster

I want to put into your consideration the following situation that is currently happening on our active-passive cluster (DRBD, Pacemaker, Corosync, PostgreSQL) OS: Ubuntu server 14.04 x64 DRBD: 8.4 Pacemaker: 1.1.10 Corosync: 2.3.3 PostgreSQL:…
Carlos Castellanos
  • 125
  • 1
  • 8
1
vote
2 answers

the pacemaker can't start the drbd resource

here is crm the configure show [root@node1 /]# crm configure show node node1 node node1.mycluster.org node node2 node node2.mycluster.org primitive Apache apache \ params configfile="/etc/httpd/conf/httpd.conf" \ op monitor…
hkguile
  • 398
  • 2
  • 12
  • 22
1
vote
2 answers

drbd does not sync the mount point

i'm trying to learn drbd with centoOS 6.3 on virtual box, i have two vm configed, the node1 and node2, i copy the a file to the mount point /data which is /dev/drbd0 of node1, but not reflect to the node2's /data here is the config # You can find…
hkguile
  • 398
  • 2
  • 12
  • 22
1
vote
0 answers

DRBD network requirements

We currently have a DRBD based replication on an pair of Asterisk servers, where we use DRBD for file and MySQL data replication on an active/passive usage scenario, using protocol B (semi-synchronous). Heartbeat handles the failover. We are…
Pablo Alsina
  • 353
  • 2
  • 6
1
vote
1 answer

Installing DRBD on XEN CentOS 5.8 (Stable)

I am trying for days to achieve HA with fault tolerance between my existing two XEN VPS's one located in Tokyo and the other located in US (both have the same setup and the same configurations, I am considering Pacemaker, Corosync, DRBD and Stonith…
user204252
  • 43
  • 5
1
vote
1 answer

Proxmox drbd configuration split brain

I am planning a proxmox HA configuration with two Dell R710 machines (dual 6 core processors in each) with enterprise level drive raid arrays. I would be using DRBD with a quorum disk on a third machine. I would dedicate two 1GB nics on each…
AudioDan
  • 398
  • 1
  • 14
1
vote
1 answer

PacemakerDRBD Mount Issue

We are stuck trying to get pacemaker to work with DRBD, and having tried various alternatives can't get our "drbd1" to mount and get some errors. NOTE: we are trying to get pacemaker to work with an existing Encrypted RAID1 LVM setup - is this…
madog
  • 51
  • 2
  • 4
1
vote
1 answer

Mirroring iSCSI target to slower drive, asynchronous RAID or block-level replication?

I'm planning on setting up a test iSCSI export on my NAS which will be used by a KVM virtualisation host to store all guest volumes and data. My NAS box is a self-build running CentOS. The device that will be exported by iSCSI from the NAS will be…
batfastad
  • 456
  • 1
  • 11
  • 22
1
vote
2 answers

Linux partitioning suggestion for failover setup?

I've been using Ubuntu for a while but didn't really paid attention on partitioning and just accepted the defaults. But on a new project we plan on setting up two old servers HP DL380 G3 both would have identical components with 2 x RAID 1 SCSI…
halflogic
  • 43
  • 1
  • 3
1
vote
1 answer

Can you use drbd8 for syncing more than two machines?

I'm really new to this. I've been struggling with how to keep multiple webservers synced. It seems like DRBD8 and OCFS2 is the way to go. However, every example I see so far keeps referencing dual-primary and two nodes. I don't see anything…
michael
  • 129
  • 3
1
vote
1 answer

DBRD dual primary Heartbeat resource management

I have the following setup: Two servers with DRBD running dual primary with OCFS2 Heartbeat with two virtual ips, one for each server Round robin DNS to load balance NFS across the two vIPs Shutting down Server1 for a period of time, cause Server2…
Jon Skarpeteig
  • 951
  • 2
  • 14
  • 29
1
vote
1 answer

drbd master/master without cluster FS

I have planed to use master-slave setup and make nightly backups (just coping data) from slave node to 3rd node. As I understand in master-slave mode it is impossible to read data from slave node? So the question is... what will happened if I will…
expream
  • 41
  • 5
1
vote
0 answers

DRBD heartbeat's resource role trouble in centos 5.4 by mysql files owner change?

I am using 2 machines with centos,mysql,drbd,heartbeat,asterisk. node 1 has hdc :SAMSUNG HD160JJ/P, ATA DISK drive kernel version 1 SMP Tue Aug 21 17:50:26 EDT 2012 kernel release 2.6.18-308.13.1.el5PAE mysql version 14.14 Distrib 5.1.65, for…
Mandar Khire
  • 13
  • 1
  • 5
1 2 3
…
18 19