From: Pere Diaz Bou <pere-altea@hotmail.com>
Date: Wed, 31 Jul 2024 10:19:09 +0000 (+0200)
Subject: os/bluestore: document downgrade-wal-to-v1
X-Git-Tag: testing/wip-vshankar-testing-20250411.090237-debug~28^2~7
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=7265bde45e29330bd06cfd691c7a604572b8a603;p=ceph-ci.git

os/bluestore: document downgrade-wal-to-v1

Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com>
(cherry picked from commit a65118d446cb8c1b3aa1708d63daa0e5badaf174)
---

diff --git a/doc/man/8/ceph-bluestore-tool.rst b/doc/man/8/ceph-bluestore-tool.rst
index b59f1078ce9..213eb059249 100644
--- a/doc/man/8/ceph-bluestore-tool.rst
+++ b/doc/man/8/ceph-bluestore-tool.rst
@@ -34,6 +34,7 @@ Synopsis
 | **ceph-bluestore-tool** show-sharding --path *osd path*
 | **ceph-bluestore-tool** trim --path *osd path*
 | **ceph-bluestore-tool** zap-device --dev *dev path*
+| **ceph-bluestore-tool** downgrade-wal-to-v1 --path *osd path*
 
 
 Description
@@ -165,6 +166,11 @@ Commands
 
    Zeros all device label locations. This effectively makes device appear empty.
 
+:command: `downgrade-wal-to-v1` --path *osd path*
+
+   Changes WAL disk format from the new version to the legacy one. Useful for downgrades, or if you
+   might want to disable this new feature (bluefs_wal_v2).
+
 Options
 =======