Oracle cluster file system 2 well known as ocfs2 is a pretty decent choice when come to chose a filesystem that need to be accessed and written using several server nodes. As milosb pointed out, you need to be running kernel xen 2. Ocfs2 filesystem ocfs2 is a general purpose extent based shared disk cluster file. These instructions have been tested on the following 64 bit linux distributions. Ocfs2 is a general purpose shareddisk cluster file system for linux capable of providing both high performance and high availability. Application limitations parti i allati virualzatoni alatont cs ch er nst lng t vitualzaton es 6.
First we need to download and install the ocfs2 kernel modules for centos 6. Arun singh shows you how to create shared storage on suse linux enterprise server 10 using ocfs2 and xen virtualization. According to the cluster labs, pacemaker supports both ocfs2 and gfs2 filesystems. Although here ubuntu is used it can be done in almost same way with debian. Users of rhel4 u2 and higher oracle enterprise linux 5. Create shared storage on suse linux using ocfs2 and. The last release of rhel and by extension centos and other derivatives to include a xen dom0 kernel was rhel 5. Oracle unbreakable kernel and ocfs2 on centosrhel6.
As it provides local file system semantics, it can be used with almost all applications. This is the home of oracles linux projects development group. How do i replace xen kernel on rhel5 with nonxen kernel. Oracle cluster file system ocfs2 and download ocfs2. Ocfs2 best practices guide when designing your ocfs2 file system it is important to keep in mind the number of nodes that you select for your cluster. However, the ocfs2 packages that i can find from otn. Tools to manage oracle cluster filesystem 2 volumes. Rhel 5 and xen compatibility howtoforge linux howtos. This article describes heartbeat2 xen cluster using ubuntu 7. May 04, 2009 we provide ocfs2 rpms for oracle enterprise linuxoel and red hat enterprise linux rhel on and we make the rpms available integrated on uln for the oracle unbreakable linux support customers. If your company has an existing red hat account, your organization administrator can grant you access. Arun singh shows us how to create shared storage on suse linux enterprise server 10 using ocfs2 oracle cluster file system v2 for shared storage and xen virtualization technology. Oracle ocfs2 is open source and part of the upstream linux kernel, however, i remember reading that red hat has removed ocfs2 from the rhck 6 kernel.
However, there have been more than a few security fixes since that old kernel was released. I cannot install nvidia drivers on the ones that have the xen kernel and so i was wondering how i managed to do this and how to replace them with normal kernels. Cloud computing btrfs, xen contributions 42,000 oracle linux servers deployed at oracle 2010 oracle linux enhanced with mainlinebased kernel oracle linux undergoes 80,000 qa. We provide ocfs2 rpms for oracle enterprise linuxoel and red hat enterprise linuxrhel on and we make the rpms available integrated on uln for the oracle unbreakable linux support customers. We are currently working with the community to provide dom0 kernel packages for rhel 6. I have a rhel5 machine that wont boot in vmware because its running a xen kernel and vmware doesnt support this. Would it be possible to download necessary xen stuff somewhere else and. Oracle now bundles the ocfs2 kernel modules in its unbreakable kernel, but they also used to be shipped with cloudstack 3. I think maybe this is normal behavior, but the kernel only seems to be able to see 32gb. Clusteraware applications can make use of cachecoherent parallel ios from multiple nodes to scale out applications easily. That first kernel line that references the 1892 kernel is a result of my first attempt to change the file. Dlm stands for distributed lock manager, a means to synchronize access to shared resources over the cluster. Im only now creating a linux rhel7 vm from templates on xenserver 6. If xm info reports all of the ram then you should be able to assign it out to your domus without a problem.
It needs 2 shared storage devices, for data and for fence device. Haguru pacemaker, corosync and ocfs2 dont seem to play. I need to install a nonxen kernel and boot to that instead. Jun 28, 2008 that first kernel line that references the 1892 kernel is a result of my first attempt to change the file. Upvote if you also have this question or find it interesting. Tools for managing the oracle cluster filesystem 2.
Two node clusters are not optimal because of the possibility of both nodes self fencing and causing a completely offline file system. The information provided here works with real shared. Apr 03, 2019 the, open a terminal emulator app, navigate to the location where you have extracted the archive files e. Installing xen packages on an existing red hat enterprise linux system 6. Although ocfs2 can be used to share datafiles between rac nodes, the current recommendation is to avoid this and use asm to control the shared disks directly as raw. Xen is a completely free and open source virtual machine monitor for x86 computer platforms that has been designed from the ground up to support execution of multiple guest operating systems in isolated environments on a single machine. Red hat will provide and support xen after rhel 5s end of life phase. Jan 30, 2008 heartbeat2 xen cluster with drbd8 and ocfs2 by atul athavale abstract.
Unfortunately, redhat do not support by default ocfs2 in their kernel since they are using gfs instead. Enterprise grade shared storage can cost you lots of money but here no real expensive shared storage used. Get the latest generation of enterprise linux os with the reliability of ibm hardware. We host a number of open source projects here including source and binary downloads, sample code. If you are using rhel4 u2 or higher which includes us since we are using oracle enterprise linux 5. I have to assume this issue has been resolved by now and im just falling in a common pitfall. I need to install a non xen kernel and boot to that instead. The oracle cluster file system ocfs2 is an open source generalpurpose file system that allows files to be shared between nodes of a cluster, including rac. I have 3 identical machines hardware wise that all have rhel 5. This package contains the ocfs2, gfs2 and dlm kernel modules. I am not aware of any unofficial kmod ocfs2 module available for rhel6. The information provided here works with real shared continue reading howto. These releases are built on top of oracle linux 5 and 6 respectively and include updates supporting new hardware and driver features, as well as bug fixes and security updates.
Heartbeat2 xen cluster with drbd8 and ocfs2 ubuntu geek. Setting up an o2cb cluster with dual primary drbd and ocfs2. Rhel 5 and xen compatibility howtoforge linux howtos and. I am in the process of installing ocfs2 on linux rhel 4. If you are a new customer, register now for access to product evaluations and purchasing capabilities. It is compiled from red hat enterprise linux rhel source code, replacing red hat branding with oracles. An update that has one recommended fix can now be installed. I am not aware of any unofficial kmodocfs2 module available for rhel6. Creating shared storage on suse linux enterprise server 10 using xen and ocfs2 novell cool solutions. Ocfs2 is configured to use global heartbeats rather than permount heartbeats because we quite often have many srs and therefore many mountpoints. Installing and configuring an ocfs2 clustered file system. Anyways, if you like using rhelcentos and would much rather continue to use ocfs2, in the coming days, ill be posting a detailed how to on it. Install rhel 7 in xenserver linux guest installation.
Creating shared storage on suse linux enterprise server 10. Installing kvm with a new red hat enterprise linux. Ocfs2 is the oracle cluster filesystem, a filesystem for shared devices accessible simultaneously from. Heartbeat2 xen cluster with drbd8 and ocfs2 by atul athavale abstract. Convirt is a multiplatform solution for managing your virtualization and cloud infrastructure, including vmware, hyperv, kvm, xen, amazon web services, openstack, and more. Would it be possible to download necessary xen stuff somewhere else and copy to the box.
In order to use ocfs2, we need to install the kernel modules and ocfs2 tools. Contribute to cybernetrhel7 kernel development by creating an account on github. Installing xen with a new red hat enterprise linux installation 6. The red hat customer portal delivers the knowledge, expertise, and guidance available through your red hat subscription. As far as i know, rhel has its own cluster file system called gfs2. Oracle real application clusters rac ocfs2 filesystem. These instructions should also directly apply to redhat enterprise linux rhel 5. Get the latest generation of enterprise linux os with the reliability of. We host a number of open source projects here including source and binary downloads, sample code, mailing lists, documentation, and an issue tracker.
It gets stuck at the installer and the screen is blank. Oracle linux abbreviated ol, formerly known as oracle enterprise linux or oel is a linux distribution packaged and freely distributed by oracle, available partially under the gnu general public license since late 2006. It is one of the most powerful virtual machine solutions for linux, unix and posix oses. The ocfs2 global heartbeat should be collocated on the same sr as the xenserver ha sr so that we depend on fewer srs the storage is a single point of failure for ocfs2. Jul 10, 2012 anyways, if you like using rhelcentos and would much rather continue to use ocfs2, in the coming days, ill be posting a detailed how to on it. I know i should have made notes, so i know its possible. Ocfs2 accepted into mainline 9,000 developers switch to linux cloud computing btrfs, xen contributions 42,000 oracle linux servers deployed at oracle 2010 oracle linux enhanced with mainlinebased kernel oracle linux undergoes 80,000 qa exadata engineered with oracle linux 2012 7,000 oracle linux support customers. How do i remove xen kernel and put normal kernel on rhel 5.
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