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Commit | Line | Data |
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1 | ==================== | |
2 | OS Recommendations | |
3 | ==================== | |
4 | ||
5 | Ceph Dependencies | |
6 | ================= | |
7 | ||
8 | As a general rule, we recommend deploying Ceph on newer releases of Linux. | |
9 | We also recommend deploying on releases with long-term support. | |
10 | ||
11 | Linux Kernel | |
12 | ------------ | |
13 | ||
14 | - **Ceph Kernel Client** | |
15 | ||
16 | If you are using the kernel client to map RBD block devices or mount | |
17 | CephFS, the general advice is to use a "stable" or "longterm | |
18 | maintenance" kernel series provided by either http://kernel.org or | |
19 | your Linux distribution on any client hosts. | |
20 | ||
21 | For RBD, if you choose to *track* long-term kernels, we currently recommend | |
22 | 4.x-based "longterm maintenance" kernel series: | |
23 | ||
24 | - 4.9.z | |
25 | - 4.4.z | |
26 | ||
27 | For CephFS, see `CephFS best practices`_ for kernel version guidance. | |
28 | ||
29 | Older kernel client versions may not support your `CRUSH tunables`_ profile | |
30 | or other newer features of the Ceph cluster, requiring the storage cluster | |
31 | to be configured with those features disabled. | |
32 | ||
33 | ||
34 | Platforms | |
35 | ========= | |
36 | ||
37 | The charts below show how Ceph's requirements map onto various Linux | |
38 | platforms. Generally speaking, there is very little dependence on | |
39 | specific distributions aside from the kernel and system initialization | |
40 | package (i.e., sysvinit, upstart, systemd). | |
41 | ||
42 | Luminous (12.2.z) | |
43 | ----------------- | |
44 | ||
45 | +----------+----------+--------------------+--------------+---------+------------+ | |
46 | | Distro | Release | Code Name | Kernel | Notes | Testing | | |
47 | +==========+==========+====================+==============+=========+============+ | |
48 | | CentOS | 7 | N/A | linux-3.10.0 | 3 | B, I, C | | |
49 | +----------+----------+--------------------+--------------+---------+------------+ | |
50 | | Debian | 8.0 | Jessie | linux-3.16.0 | 1, 2 | B, I | | |
51 | +----------+----------+--------------------+--------------+---------+------------+ | |
52 | | Debian | 9.0 | Stretch | linux-4.9 | 1, 2 | B, I | | |
53 | +----------+----------+--------------------+--------------+---------+------------+ | |
54 | | Fedora | 22 | N/A | linux-3.14.0 | | B, I | | |
55 | +----------+----------+--------------------+--------------+---------+------------+ | |
56 | | RHEL | 7 | Maipo | linux-3.10.0 | | B, I | | |
57 | +----------+----------+--------------------+--------------+---------+------------+ | |
58 | | Ubuntu | 14.04 | Trusty Tahr | linux-3.13.0 | | B, I, C | | |
59 | +----------+----------+--------------------+--------------+---------+------------+ | |
60 | | Ubuntu | 16.04 | Xenial Xerus | linux-4.4.0 | 3 | B, I, C | | |
61 | +----------+----------+--------------------+--------------+---------+------------+ | |
62 | ||
63 | ||
64 | Jewel (10.2.z) | |
65 | -------------- | |
66 | ||
67 | +----------+----------+--------------------+--------------+---------+------------+ | |
68 | | Distro | Release | Code Name | Kernel | Notes | Testing | | |
69 | +==========+==========+====================+==============+=========+============+ | |
70 | | CentOS | 7 | N/A | linux-3.10.0 | 3 | B, I, C | | |
71 | +----------+----------+--------------------+--------------+---------+------------+ | |
72 | | Debian | 8.0 | Jessie | linux-3.16.0 | 1, 2 | B, I | | |
73 | +----------+----------+--------------------+--------------+---------+------------+ | |
74 | | Fedora | 22 | N/A | linux-3.14.0 | | B, I | | |
75 | +----------+----------+--------------------+--------------+---------+------------+ | |
76 | | RHEL | 7 | Maipo | linux-3.10.0 | | B, I | | |
77 | +----------+----------+--------------------+--------------+---------+------------+ | |
78 | | Ubuntu | 14.04 | Trusty Tahr | linux-3.13.0 | | B, I, C | | |
79 | +----------+----------+--------------------+--------------+---------+------------+ | |
80 | ||
81 | Hammer (0.94.z) | |
82 | --------------- | |
83 | ||
84 | +----------+----------+--------------------+--------------+---------+------------+ | |
85 | | Distro | Release | Code Name | Kernel | Notes | Testing | | |
86 | +==========+==========+====================+==============+=========+============+ | |
87 | | CentOS | 6 | N/A | linux-2.6.32 | 1, 2 | | | |
88 | +----------+----------+--------------------+--------------+---------+------------+ | |
89 | | CentOS | 7 | N/A | linux-3.10.0 | | B, I, C | | |
90 | +----------+----------+--------------------+--------------+---------+------------+ | |
91 | | Debian | 7.0 | Wheezy | linux-3.2.0 | 1, 2 | | | |
92 | +----------+----------+--------------------+--------------+---------+------------+ | |
93 | | Ubuntu | 12.04 | Precise Pangolin | linux-3.2.0 | 1, 2 | | | |
94 | +----------+----------+--------------------+--------------+---------+------------+ | |
95 | | Ubuntu | 14.04 | Trusty Tahr | linux-3.13.0 | | B, I, C | | |
96 | +----------+----------+--------------------+--------------+---------+------------+ | |
97 | ||
98 | Firefly (0.80.z) | |
99 | ---------------- | |
100 | ||
101 | +----------+----------+--------------------+--------------+---------+------------+ | |
102 | | Distro | Release | Code Name | Kernel | Notes | Testing | | |
103 | +==========+==========+====================+==============+=========+============+ | |
104 | | CentOS | 6 | N/A | linux-2.6.32 | 1, 2 | B, I | | |
105 | +----------+----------+--------------------+--------------+---------+------------+ | |
106 | | CentOS | 7 | N/A | linux-3.10.0 | | B | | |
107 | +----------+----------+--------------------+--------------+---------+------------+ | |
108 | | Debian | 7.0 | Wheezy | linux-3.2.0 | 1, 2 | B | | |
109 | +----------+----------+--------------------+--------------+---------+------------+ | |
110 | | Fedora | 19 | Schrödinger's Cat | linux-3.10.0 | | B | | |
111 | +----------+----------+--------------------+--------------+---------+------------+ | |
112 | | Fedora | 20 | Heisenbug | linux-3.14.0 | | B | | |
113 | +----------+----------+--------------------+--------------+---------+------------+ | |
114 | | RHEL | 6 | Santiago | linux-2.6.32 | 1, 2 | B, I, C | | |
115 | +----------+----------+--------------------+--------------+---------+------------+ | |
116 | | RHEL | 7 | Maipo | linux-3.10.0 | | B, I, C | | |
117 | +----------+----------+--------------------+--------------+---------+------------+ | |
118 | | Ubuntu | 12.04 | Precise Pangolin | linux-3.2.0 | 1, 2 | B, I, C | | |
119 | +----------+----------+--------------------+--------------+---------+------------+ | |
120 | | Ubuntu | 14.04 | Trusty Tahr | linux-3.13.0 | | B, I, C | | |
121 | +----------+----------+--------------------+--------------+---------+------------+ | |
122 | ||
123 | Notes | |
124 | ----- | |
125 | ||
126 | - **1**: The default kernel has an older version of ``btrfs`` that we do not | |
127 | recommend for ``ceph-osd`` storage nodes. We recommend using ``XFS``. | |
128 | ||
129 | - **2**: The default kernel has an old Ceph client that we do not recommend | |
130 | for kernel client (kernel RBD or the Ceph file system). Upgrade to a | |
131 | recommended kernel. | |
132 | ||
133 | - **3**: The default kernel regularly fails in QA when the ``btrfs`` | |
134 | file system is used. We do not recommend using ``btrfs`` for | |
135 | backing Ceph OSDs. | |
136 | ||
137 | ||
138 | Testing | |
139 | ------- | |
140 | ||
141 | - **B**: We build release packages for this platform. For some of these | |
142 | platforms, we may also continuously build all ceph branches and exercise | |
143 | basic unit tests. | |
144 | ||
145 | - **I**: We do basic installation and functionality tests of releases on this | |
146 | platform. | |
147 | ||
148 | - **C**: We run a comprehensive functional, regression, and stress test suite | |
149 | on this platform on a continuous basis. This includes development branches, | |
150 | pre-release, and released code. | |
151 | ||
152 | .. _CRUSH Tunables: ../../rados/operations/crush-map#tunables | |
153 | ||
154 | .. _CephFS best practices: ../../cephfs/best-practices |