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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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Kernel panic when bringing up DRBD resource

I'm trying to set up two machines synchonizing with DRBD. The storage is setup as follows: PV -> LVM -> DRBD -> CLVM -> GFS2. DRBD is set up in dual primary mode. The first server is set up and running fine in primary mode. The drives on the…
dw.emplod
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Drbd Primary/Primary + iSCSI: accessing to different files avoids split brain?

I have a question / curiosity about split-brain on a Drbd Primary/Primary configuration. Supposing two nodes (hosts), host1 and host2 configured with Drbd Primary/Primary and two different shares (NFS, CIFS o iSCSI) of a replicated area (saying…
Eddie C.
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DRBD as a block device for XEN VM (Centos 5.3)

I have setup a drbd resource between 2 server nodes - everything works correctly when doing sync tests between the two. (I want to create a HA cluster using drbd,xen and heartbeat) However, when I try and create a XEN VM with Centos as guest…
SaberTooth
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Rsync through the internet

I'm looking for a way to copy files from production server to DRP server via internet. The two servers are in different states. For now, there isn't a lot of data to transfer but I suspect it might go up. I read a lot about Rsync and DRBD. My…
Kuf
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NFS failover WITHOUT DRBD?

So I am trying to set up a redundant NFS share in a cloud environment(all links internal, half gig links), and I am looking into using heartbeat for failover, but all the guides seem to be about combining DRBD and heartbeat to create a robust…
user439407
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CentOS 5.3 64bit, XEN and DRBD

After numerous Google searches and attempts to rectify this issue I decided to post here... hopefully someone here can assist me, please?? I have setup 2 dell poweredge r200 servers with Centos 5.3 64 bit and have installed virtualisation packages…
SaberTooth
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How do you configure Pacemaker to mount the DRBD data directory on the slave?

how do you get the Slave node of a DRBD pair to mount the data directory so data can be sync'd? I went through the following guide: https://wiki.edubuntu.org/ClusterStack/Natty#Prepare_Partitions to get the 2-node cluster setup. I have the nodes…
thiesdiggity
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Safe filesystem for Email homedir storage? XFS? JFS? Btrfs? Reiser4?

i'm building an email system and considering some filesystem that support online-resize, safe when power-outage, and does not restrict number of files per directory(or at least can hold some millions file per directory) I want to know which…
Locke
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Multi Workstation DRBD Setup

I'm considering setting up a way to automate data redundancy and synchronisation of multiple workstations at the office. The way our office is setup, nobody has a fixed desk and anyone can login and work on any workstation on the network. One way of…
sybreon
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Best RAID setup for DRBD

I would like to setup a two nodes PROXMOX cluster with DRBD storage. The nodes will be connected by gigabit ethernet. What would be the best storage setup in terms of reliability, performance and costs electiveness? My favorite would be RAID 10, but…
Maciek Sawicki
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Any production experience with DRDB dual primary?

In order to avoid having to setup a NAS system, I am considering the possibility of setting up a dual-primary with DRBD to handle RAID1 over IP. Concerning filesystems, I know of OCFS and GFS as distributed filesystem. I am leaning towards OCFS as…
Antoine Benkemoun
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True memory-synchronous write flushing -- drbd protocol B-?

Is there a way in DRBD to make a real fully memory-synchronous cache? I might best explain substituting current explanation with my own one: Protocol B. Memory synchronous (semi-synchronous) replication protocol. Local write operations on the…
Motiejus Jakštys
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after split brain recovery filesystem not mounted

I have an active/passive high availability cluster with pacemaker+split brain. After split brain condition I use automatic split-brain recovery to recover my systems. The problem is that since file system resource is managed by CRM it is not mounted…
amin
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Predict the number of primaries after a split-brain situation

I am trying to avoid a split brain situation using automatic split brain recovery policies explained at http://www.drbd.org/users-guide/s-configure-split-brain-behavior.html How to predict which condition we are involved in? How to predict the…
amin
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Installing DRBD in ubuntu 10.04 LTS

I have installed drbd8-utils, and edited the drbd.conf file in /etc. But when I try to start drbd I get the following error message. root@drbd1:~# service drbd start /etc/drbd.conf:4: Failed to open include file 'drbd.d/*.res'. * Starting DRBD…
Aaron
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