The cluster stack configuration involves editing two files, one. If you are a new customer, register now for access to product evaluations and purchasing capabilities. Jul 11, 2012 in an earlier post here, i shared my frustrations about how it doesnt seem possible to get a pacemaker cluster going with ocfs2 as the cluster fs on centos 6. Support the support for the file system is included as part of oracle linux support contract. It is a versatile clustered file system that can be used with applications that are noncluster aware and cluster aware. A a it appears that when you upgrade your rhel kernel from version 2.
The ocfs2tools rpm package provides the o2cb configuration files. The source of the ocfs2 file system is available under the gnu general public license gpl version 2. This will help with filesystems which a huge huge number of files. How to format and mount ocfs2 file system for oracle rac.
Oracle unbreakable kernel and ocfs2 on centosrhel6. Download ocfs2 toolsdevel packages for alt linux, fedora, mageia, opensuse. All the user needs to do is install that kernel and the ocfs2 tools rpm package. This cluster stack has two configuration files, etcocfs2nf and etcsysconfigo2cb. A i ran into an issue while working with oracle corporation on 11gr2 rac and rhel 5. The file system is part of oracles unbreakable enterprise kernel. Clusteraware applications can make use of cachecoherent parallel ios from multiple nodes to scale out applications easily. The oracle cluster file system is a shared disk file system developed by oracle corporation. Ocfs eliminates the requirement for oracle database files to be located on the raw devices in linux rac cluster and windows rac cluster. We host a number of open source projects here including source and binary downloads, sample code. Tools to manage oracle cluster filesystem 2 volumes.
This time however the client already had a fibre channel over ethernet fcoe san which had to be used, and the hosts were hp blades. This particularly also happens with the oracle rdbms installers as well. Oracle cluster file system ocfs tips burleson consulting. All nodes can concurrently read and write directly to storage via the standard file system interface. It only changes the uuid and label on a cloned volume so that it can be mounted on the node that has the original volume mount. Both files are only read when the cluster is brought online. Most often that would be nfs all the way and very occasionally ceph. Do you not have the rpm files on the other node yet.
All the cluster services have been packaged in the o2cb system service. 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. Ocfs2 administration guide suse linux enterprise high. We host a number of open source projects here including source and binary downloads, sample code, mailing lists, documentation, and an issue tracker. Along with these two files, you will also be using this space to store the shared spfile for all oracle asm instances. Download and installation of ocfs2 rpms for linux larry catt leave a comment oracle cluster file system 2 ocfs2 is a file system which allows for multiple hosts to access the same files on a shared storage at the same time. Ocfs2 tools download for linux apk, deb, rpm download ocfs2 tools linux packages for alpine, alt linux, debian, fedora, mageia, opensuse, ubuntu. How to resize an ocfs2 filesystem on linux the geek diary. So the latest ocfs2 code is always the upstream mainline linux kernel.
Oracle cluster file system 2 well known as ocfs2 is a pretty. The procedure should first be tested in test before being performed against a production environment. May 04, 2009 if it is unrecoverable then ocfs2 will make this single inode unreadable but it does not or will not affect the rest of the filesystem. Ocfs only supports oracle data files, redo log files, and control files. Last year we had a project which required us to build out a kvm environment which used shared storage.
Setting up an o2cb cluster with dual primary drbd and ocfs2. Whereas the former keeps track of the cluster layout, the latter keeps track of the cluster timeouts. I have seen that after reboot of rac nodes, the devlabel does not get started automatically and so the ocfs2 mountpoint gets failed because there is no symlink named devocfs2 in the kernel that points to ocfs2 disk. Installing and configuring an ocfs2 clustered file system. Users simply install it once on an ocfs2 volume in the cluster. But i wouldnt be a guru if i couldnt get it work now would i hahahaha. Download the appropriate version of the ocfs2 kernel module and tools. Optionsclonedvolumenewlabel change the volume uuid autogenerated and the label, if provided, of a cloned ocfs2 volume.
Oracle now bundles the ocfs2 kernel modules in its unbreakable kernel, but they also used to be shipped with cloudstack 3. Installing and configuring an ocfs2 clustered file system the. In most filesystems this would take the entire filesystem into readonly mode. Oracle cluster file system ocfs2 and download ocfs2 oracle. A now oracle is currently saying that no known problem exists, but i thought i would drop a note here, just in case anyone comes across the same situation. Sep 02, 2016 in order to use ocfs2, we need to install the kernel modules and ocfs2 tools. Download ocfs2tools packages for alpine, alt linux, debian, fedora, mageia, opensuse, ubuntu.
The post outlines the steps to resize an ocfs2 filesystem on linux. The oracle cluster file system ocfs2 is an open source generalpurpose file. The oracle cluster file system ocfs2 is an open source generalpurpose file system that allows files to be shared between nodes of. Ocfs2 is fully integrated into the mainline linux kernel as of. Normally, i keep copies of all rpms, installers etc for this precise reason older versions are no longer available for download. Ocfs2 best practices guide introduction ocfs2 is a high performance, high availability, posix compliant generalpurpose file system for linux. Jul 05, 2012 source code was always available even prior to inclusion into mainline and as of 2. Ocfs2 is a complete rewrite of the previous version, designed to work as a seamless addition to the linux kernel. In this guide, you will be using the release of ocfs2 included with oracle enterprise linux release 5. From there follow download link and get ocfs2 tools rpm for your.
Cluster from scratch drbd, ocfs2 and apache on fedora 11. Tools for managing the oracle cluster filesystem 2. If your company has an existing red hat account, your organization administrator can grant you access. Download ocfs2 tools packages for alpine, alt linux, debian, fedora, mageia, opensuse, ubuntu. This is the home of oracles linux projects development group. Oct 15, 2012 ocfs2 is a general purpose shareddisk cluster file system for linux capable of providing both high performance and high availability. Oracle cluster file system ocfs is a shared file system designed specifically for oracle real application clusters. First we need to download and install the ocfs2 kernel modules for centos 6.
331 714 364 713 760 1080 233 1428 636 302 1192 301 509 1303 429 938 224 1131 269 261 911 1030 283 61 33 1428 417 603 1159 1399 517 235 543