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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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MySQL replication using DRBD, distributed lock manager?

I need to implement Linux-HA configuration in two servers. I've decided to use DRBD for block level replication on both hosts, mainly for MySQL data replication. As I understand, in DRBD configuration there's always a primary server, others are…
Karolis T.
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DRBD with primary-to-primary as a RAID1 over TCP/IP with both notes read/write?

In my setup I have two machines. Both of them have almost the same setup, except for the amount of RAM. On both sides I want to designate /dev/sdb1 as the underlying device for a common /dev/drbd0. As I understand it (please correct me if I'm wrong)…
0xC0000022L
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DRBD Replication failure

A couple of weeks ago I setup a 2 nodes CRM system with one of the resources managed being MySQL over DRBD. Today for maintenance reasons I restarted both nodes but now they can't connect to each other anymore. DRBD fell out of sync and I followed…
MrD
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mysql with DRBD on rackspace

I am trying to set up a failover secondary MySQL server that is a mirror of my primary MySQL server using DRBD. The problem is that I am on a rackspace cloud server and I need a second partition on both the primary and secondary servers that I will…
Richard Castle
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change a file at a time located in different location

Iam very new to linux. suppose i have two file with same name fstab one file is located in /etc and the other is located in /root/ If i make a change in /etc/fstab file the changes has to reflect in /root/fstab . Is there any command to do…
user58513
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How long does it take to create an OCFS2 filesystem on a 1TB disk?

I'm creating an OCFS2 fs for use with DRBD and it's taking an awful long time to create the filesystem. I haven't done it before so I'm wondering if someone with more experience can relate how long it should actually take? I googled but strangely…
Rafiq Maniar
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Is it possible use replicated storage in a network RAID 1 fashion?

I was wondering if there was any way to replicate the functionality of the HP StorageWorks P4000 Virtual SAN Appliance using open source tools? Basically the HP VSA lets you replicate in the same way DRBD does but it lets you use both of the block…
Flo Woo
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How should I backup this large volume?

I have a 10TB XFS filesystem on a SLES 10.2 server. I am currently running rsync on it once per day, to sync it with a disk-based online backup on another server. The primary volume is quite busy as it is, and so rsync is only running at 2MB/sec…
lukecyca
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How to mount a drbd/gfs logical volume from Xen VM?

Any hint on how to do this for primary/primary? I have drbd and gfs running ok, I can see the logical volume from the DomU but dont know how to mount it. Should I install gfs on DomU and mount??? Thanks Cris
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Pygrub with DRBD on Xen 3.2

we have a two-node cluster using DRBD 8.2 on CentOS 5.2 64bit. The cluster runs a few VMs on top of Xen 3.2.1, here's the configuration for an Ubuntu Jaunty VM: name = 'dev' bootloader = '/usr/bin/pygrub' memory = '512' vif = […
Joril
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DRBD does not promote resource on slave node after "pcs cluster stop --all"

I am trying to understand the recovering process of a promotable resource after "pcs cluster stop --all" and shutdown of both nodes. I have a two nodes + qdevice quorum with a DRBD resource. This is a summary of the resources before my test.…
Jose
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Stopping DRBD so I can run some tests with a VM

We have two servers I inherited, both running DRBD and each then running KVM virtual machines. I would love to stop a VM running on server1, and bring up just the 1 VM on server2 for some tests. Though with DRBD doing its thing on these servers and…
Codejoy
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verify my drbd configuration

HI i try to add DRBD in centos7 with my two physical server, when i am try create drbdadm create-md drbd0 error is open(/dev/sdb3) failed: Device or resource busy is it i am mapping correct drive in my configuration can someone verify and correct…
Ana Mal
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QEMU-KVM, drbd and corosync - VM's doesn't work after reboot

On Debian 9.6 I've got QEMU-KVM Virtualisation. After electricity problems this machine just shut down. After switching it on again I can't start any VM because of this error: error: internal error: process exited while connecting to monitor:…
fnsq
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DRBD terminated with exit code 40

I am trying to setup DRBD on Ubuntu with an existing filesystem and when I run sudo drbdadm create-md r0 I get the following error message md_offset 7889832898560 al_offset 7889832865792 bm_offset 7889592086528 Found LVM2 physical volume signature …
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