similar to: Some questions for understanding ocfs2 & drbd

Hi, First of all, I'm new to ocfs2 and drbd. I set up two identical servers (Athlon64, 1GB RAM, GB-Ethernet) with Debian Etch, compiled my own kernel (2.6.16.20), then compiled the drbd-modules and ocfs (modules and tools) from source. The process of getting everything up and running was very easy. I have one big 140GB partition that is synced with drbd (in c-mode) and has an ocfs2

I am running a two-node web cluster on OCFS2 via DRBD Primary/Primary (v8.3.8) and Pacemaker. Everything seems to be working great, except during testing of hard-boot scenarios. Whenever I hard-boot one of the nodes, the other node is successfully fenced and marked ?Outdated? * <resource minor="0" cs="WFConnection" ro1="Primary" ro2="Unknown"

Hello list, I want to use shared volumes between severall vm''s and defenetly don''t want to use NFS or Samba! So i have three options: 1. simulated(software-) iscsi 2. GFS 3. OCFS2 What do you suggest and why? Kind regards, Florian ********************************************************************************************** IMPORTANT: The contents of this email and any

Hi list. I am dealing with DRBD (+GFS as its DLM). GFS configuration needs a CLVMD configuration. So, after syncronized my (two) /dev/drbd0 block devices, I start the clvmd service and try to create a clustered logical volume. I get this: On "alice": [root at alice ~]# pvcreate /dev/drbd0 Physical volume "/dev/drbd0" successfully created [root at alice ~]# vgcreate

We're trying to setup a dual-primary DRBD environment, with a shared disk with either OCFS2 or GFS. The environment is a Centos 5.3 with DRBD82 (but also tried with DRBD83 from testing) . Setting up a single primary disk and running bonnie++ on it works. Setting up a dual-primary disk, only mounting it on one node (ext3) and running bonnie++ works When setting up ocfs2 on the /dev/drbd0

We're trying to setup a dual-primary DRBD environment, with a shared disk with either OCFS2 or GFS. The environment is a Centos 5.3 with DRBD82 (but also tried with DRBD83 from testing) . Setting up a single primary disk and running bonnie++ on it works. Setting up a dual-primary disk, only mounting it on one node (ext3) and running bonnie++ works When setting up ocfs2 on the /dev/drbd0

Hi there First of all apologies for the lenghty message, but it's been a long weekend. I'm trying to setup a two node cluster with the following configuration: OS: Debian 6.0 amd64 ocfs: 1.4.4-3 ( debian package ) drbd: 8.3.7-2.1 lvm2: 2.02.66-5 kernel: 2.6.32-45 mdadm: 3.1.4-1+8efb9d1+squeeze1 layout: 0- 2 36GB scsi disks in a raid1 array , with mdadm. 1- 1 lvm2 VG above the raid1 ,

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Hello We have an ocfs2 1.6 via drbd dual master. drbd0 -> sda7 (node1) drbd0 -> sda7 (node2) ocfs2 1.6 2.6.38-2-amd64 kernel panic when unmount. when unmount drbd0 on both node around the same time using dsh. umount -v /dev/drbd0 the umount process hangs for a while, 30mins or so pts/0 D+ 20:50 0:00 umount /dev/drbd0 -vvvvv Then, one of the node kernel panics Message from

so I've had a drbd replica running for a while of a 16TB raid thats used as a backuppc repository. when I have rebooted the backuppc server, the replica doesn't seem to auto-restart til I do it manually, and the backupc /data file system on this 16TB LUN doesn't seem to automount, either. I've rebooted this thing a few times in the 18 months or so its been running... not

Hiya, I'm new to Centos but learning rapidly but I have been using FreeBSD. I'm trying to setup a HA NFS server using 2 machines. Both machines are running 4.3 updated to the latest via Yum. I did yum groupinstall drbd-heartbeat and yum install kernel-module-drbd-kernel-module-drbd-2.6.9-34.EL to match my kernel. The problem I have is that on 1 machine drbd works fine, but when I start

Hi, i''ve a problem with drbd 0.7.10 module on an xenU OS (testing). I''ve compiling drbd with "make clean all" then "make install" without error. modprobe drbd OK with no error too and now and trying to start drdb /etc/init.d/drbd start Starting DRBD resources: can not open /dev/drbd0: No such device or address [ d0 can not open /dev/drbd0: No such device

hi! i'm on debian lenny and trying to run ocfs2 on a dual primary drbd device. the drbd device is already set up as msDRBD0. to get dlm_controld.pcmk i installed it from source (from cluster-suite-3.0.10) now i configured a resource "resDLM" with 2 clones: primitive resDLM ocf:pacemaker:controld op monitor interval="120s" clone cloneDLM resDLM meta

Hello List, i am running Debian Squeeze and i installed DRBD, 3.2.0-0.bpo.4-amd64 and Xen4.0 from the Backports. Sometimes i get such ugly Kernel message: [257318.441757] BUG: unable to handle kernel paging request at ffff880025f19000 Log: [256820.643918] xen-blkback:ring-ref 772, event-channel 16, protocol 1 (x86_64-abi) [256830.802492] vif86.0: no IPv6 routers present [256835.674481]

Hi all, Where i want to arrive: 1) having two storage server replicating partition with DRBD 2) exporting via GNBD from the primary server the drbd with GFS2 3) inporting the GNBD on some nodes and mount it with GFS2 Assuming no logical error are done in the last points logic this is the situation: Server 1: LogVol09, DRDB configured as /dev/drbd0 replicated to Server 2. DRBD seems to work

Hi, I was interested in a simple configuration with 2 machines sharing a drbd drive in primary-primary mode. I am done with drbdb, but I am a newbie to ocfs, so wanted some help. I have 2 machines, with centos5.2 , kernel 2.6.18-8.el5. I downloaded the following packages : ocfs2-2.6.18-92.el5-1.4.1-1.el5.x86_64.rpm ocfs2-tools-1.4.1-1.el5.x86_64.rpm ocfs2console-1.4.1-1.el5.x86_64.rpm (download

Hi, Sorry for the need of the long winded email. Looking for some answers to the following. I am setting up a xen PV domU on top of a LVM partitioned DRBD device. Everything was going just fine until I tried to test the filesystems in the domU. Here is my setup; Dom0 OS: CentOS release 5 (Final) Kernel: 2.6.18-8.1.4.el5.centos.plusxen Xen: xen-3.0.3-25.0.3.el5 DRBD:

Hi all. I have two hosts with drbd: kmod-drbd83-8.3.8-1.el5.centos drbd83-8.3.8-1.el5.centos and kernel (CentOS 5.7): 2.6.18-308.4.1.el5 After a recent upgrade of kernel I have had two sitiuations when my ext3 filesystem on /dev/drbd0 became read-only. I've checked disks with smartctl -t long, they are ok. There are no messages with disks problems in /var/log/messages | dmesg. I've made

Hello all, I''ve just installed a new dom0 with openSUSE 11.3 (x86_64) and I''m seeing domUs crashes when reading from disks. The problem occours when in domU configuration I use memory=1024 maxmem=2048 My setup is DRBD on LVM on Software RAID 10 and drbd devices are used as disks for domUs, using phy:/dev/drbd0,hda,w phy:/dev/drbd1,hdb,w The domU in test is HVM, I''m

We're using a storage solution involving two SunFire X4500 servers using DRBD to replicate a 15TB partition across the network with ocfs2 on top. We're sharing the partition from one server over NFS and the other is mounted read-only at present. The DBRD backing store is software RAID 60 on 40 disks. We've been seeing periodic issues whereby our NFS clients (Debian Lenny) are very