From 254025343b1c49e1d0aa72fdea0cbe0483704245 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Niklas=20Hamb=C3=BCchen?= Date: Sun, 2 Jan 2022 23:27:55 +0100 Subject: [PATCH] doc/man/rbd: Mention changed `bluestore_min_alloc_size` MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This change was done in: https://github.com/ceph/ceph/pull/34588 Signed-off-by: Niklas Hambüchen --- doc/man/8/rbd.rst | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/doc/man/8/rbd.rst b/doc/man/8/rbd.rst index 93483586caf5a..cfb5b87cccd86 100644 --- a/doc/man/8/rbd.rst +++ b/doc/man/8/rbd.rst @@ -827,7 +827,8 @@ Per mapping (block device) `rbd device map` options: * alloc_size - Minimum allocation unit of the underlying OSD object store backend (since 5.1, default is 64K bytes). This is used to round off and drop discards that are too small. For bluestore, the recommended setting is - bluestore_min_alloc_size (typically 64K for hard disk drives and 16K for + bluestore_min_alloc_size (currently set to 4K for all types of drives, + previously used to be set to 64K for hard disk drives and 16K for solid-state drives). For filestore with filestore_punch_hole = false, the recommended setting is image object size (typically 4M). -- 2.39.5