From 09ce8867e847f91694c2bdfb7f3fde78425276ea Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Fri, 10 Feb 2017 21:20:16 +0100 Subject: [PATCH] doc: update krbd kernel recommendations Signed-off-by: Ilya Dryomov --- doc/start/os-recommendations.rst | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/doc/start/os-recommendations.rst b/doc/start/os-recommendations.rst index 4e9ff930e9b11..58b9f520e3ebe 100644 --- a/doc/start/os-recommendations.rst +++ b/doc/start/os-recommendations.rst @@ -13,19 +13,22 @@ Linux Kernel - **Ceph Kernel Client** - We currently recommend: + If you are using the kernel client, the general advice is to *track* "stable" + or "longterm maintenance" kernel series provided by either http://kernel.org + or your distribution on the kernel client machines. - - 4.1.4 or later - - 3.16.3 or later (rbd deadlock regression in 3.16.[0-2]) - - *NOT* 3.15.* (rbd deadlock regression) - - 3.14.* + For RBD, if you choose to *track* long-term kernels, we currently recommend + 4.x-based "longterm maintenance" kernel series: + + - 4.9.z + - 4.4.z These are considered pretty old, but if you must: - - 3.10.* + - 3.16.z + - 3.10.z - Firefly (CRUSH_TUNABLES3) tunables are supported starting with 3.15. - See `CRUSH Tunables`_ for more details. + Older kernel client versions may not support your `CRUSH tunables`_ profile. - **B-tree File System (Btrfs)** -- 2.39.5