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.
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How to setup STONITH in a 2-node active/passive linux HA pacemaker cluster?
I am trying to setup an active/passive (2 nodes) Linux-HA cluster with corosync and pacemaker to hold a PostgreSQL-Database up and running. It works via DRBD and a service-ip. If node1 fails, node2 ...
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DRBD on raw disk block device
I try to setup DRBD on a raw disk device /dev/sdb without partition table, nor LVM stack PV/VG/LV
As this disk is virtual and hypervisor I use allow on-the-fly disk extension, I do not want to bother ...
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KVM+DRBD replicated between two active-passive servers with manual switching
I need to build 2-node cluster(-like?) solution in active-passive mode, that is, one server is active while the other is passive (standby) that continuously gets the data replicated from active. KVM-...
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DRDB and NFS: is there any efficient way to make failover transparent for NFS
We are implementing DRDB + heartbeat with two servers to have a file system with failover.
These servers exposes a NFS service for other servers
Currently DRDB is working just fine, but when testing ...
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DRBD or similiar RAID over net on slow/limited networks
I am looking for ways to create some kind of file replication without losing too much performance on file operations. A real RAID is not an option due to non-technical constraints.
As far as I ...
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I/O high on DRBD disk drbd10 on stacked site
We have 4 Redhat Boxes Dell PowerEdge R630 (say a,b,c,d) having the following OS/packages.
RedHat EL 6.5 MySql Enterprise 5.6 DRBD 8.4 Corosync 1.4.7
We have setup 4-way stacked drbd resources as ...
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Xen DomU on DRBD device: barrier errors
I'm testing setting up a Xen DomU with a DRBD storage for easy failover. Most of the time, immediatly after booting the DomU, I get an IO error:
[ 3.153370] EXT3-fs (xvda2): using internal journal
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DRBD experimentation and virtualization
This was one of those thoughts that were tickling the back of my mind.
I'm working on a home testbed of a high-availability cluster consisting of just computers, not a SAN or NAS for storage, just "...
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Is it possible to create a multipath iSCSI target with two DRBD nodes?
I can put together two linux servers and use the (more or less) new DRBD dual-primary feature to get a shared block device with concurrent read/write access on the two nodes.
Can I then export an ...
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DRBD / Heartbeat on Virtual Machines
Does anyone have experience configuring drbd with heartbeat between 2 virtual linux machines (VMWare Infrastructure)?
The problem I am running into is that heartbeat likes multiple data paths to see ...
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Can't run drbdadm up with DRBD 8.4 on CentOS 7.3
Nodes:
node1
node2
Use this way installed DRBD on both nodes:
rpm -ivh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-elrepo.org
yum -y ...
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Nagios/Icinga: Don't show CRITICAL for DRBD partitions on standby node
I've set up a pacemaker/corosync ha-cluster in a failover configuration with two nodes: productive and standby. There are three DRBD partitions. Everything works fine so far.
I'm using Nagios NRPE on ...
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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 ...
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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 ...
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