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83 lines
4.2 KiB
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====================
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OS Recommendations
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====================
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Ceph Dependencies
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=================
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As a general rule, we recommend deploying Ceph on newer releases of Linux.
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We also recommend deploying on releases with long-term support.
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Linux Kernel
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------------
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- **Ceph Kernel Client**
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If you are using the kernel client to map RBD block devices or mount
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CephFS, the general advice is to use a "stable" or "longterm
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maintenance" kernel series provided by either http://kernel.org or
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your Linux distribution on any client hosts.
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For RBD, if you choose to *track* long-term kernels, we recommend
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*at least* 4.19-based "longterm maintenance" kernel series. If you can
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use a newer "stable" or "longterm maintenance" kernel series, do it.
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For CephFS, see the section about `Mounting CephFS using Kernel Driver`_
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for kernel version guidance.
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Older kernel client versions may not support your `CRUSH tunables`_ profile
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or other newer features of the Ceph cluster, requiring the storage cluster to
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be configured with those features disabled. For RBD, a kernel of version 5.3
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or CentOS 8.2 is the minimum necessary for reasonable support for RBD image
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features.
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Platforms
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=========
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The chart below shows which Linux platforms Ceph provides packages for, and
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which platforms Ceph has been tested on.
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Ceph does not require a specific Linux distribution. Ceph can run on any
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distribution that includes a supported kernel and supported system startup
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framework, for example ``sysvinit`` or ``systemd``. Ceph is sometimes ported to
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non-Linux systems but these are not supported by the core Ceph effort.
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+---------------+---------------+-----------------+------------------+------------------+
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| | Reef (18.2.z) | Quincy (17.2.z) | Pacific (16.2.z) | Octopus (15.2.z) |
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+===============+===============+=================+==================+==================+
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| Centos 7 | | | A | B |
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+---------------+---------------+-----------------+------------------+------------------+
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| Centos 8 | A | A | A | A |
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+---------------+---------------+-----------------+------------------+------------------+
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| Centos 9 | A | | | |
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+---------------+---------------+-----------------+------------------+------------------+
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| Debian 10 | C | | C | C |
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+---------------+---------------+-----------------+------------------+------------------+
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| Debian 11 | C | C | C | |
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+---------------+---------------+-----------------+------------------+------------------+
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| OpenSUSE 15.2 | C | | C | C |
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+---------------+---------------+-----------------+------------------+------------------+
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| OpenSUSE 15.3 | C | C | | |
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+---------------+---------------+-----------------+------------------+------------------+
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| Ubuntu 18.04 | | | C | C |
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+---------------+---------------+-----------------+------------------+------------------+
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| Ubuntu 20.04 | A | A | A | A |
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+---------------+---------------+-----------------+------------------+------------------+
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| Ubuntu 22.04 | A | | | |
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+---------------+---------------+-----------------+------------------+------------------+
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- **A**: Ceph provides packages and has done comprehensive tests on the software in them.
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- **B**: Ceph provides packages and has done basic tests on the software in them.
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- **C**: Ceph provides packages only. No tests have been done on these releases.
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.. note::
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**For Centos 7 Users**
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``Btrfs`` is no longer tested on Centos 7 in the Octopus release. We recommend using ``bluestore`` instead.
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.. _CRUSH Tunables: ../../rados/operations/crush-map#tunables
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.. _Mounting CephFS using Kernel Driver: ../../cephfs/mount-using-kernel-driver#which-kernel-version
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