From e9b44bec01dc1a2257c8b0711511751163f7351f Mon Sep 17 00:00:00 2001 From: Stoiko Ivanov Date: Fri, 17 Jul 2020 14:55:17 +0000 Subject: [PATCH] docs: add note on supported filesystems certain filesystems cannot be used as chunkstores, because they don't support 2^16 subdirectories (e.g. ext4 with certain features disabled or ext3 - see ext4(5)) reported via our community forum: https://forum.proxmox.com/threads/emlink-too-many-links.73108/ Signed-off-by: Stoiko Ivanov --- docs/administration-guide.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/docs/administration-guide.rst b/docs/administration-guide.rst index 0637df2d..1d9232d8 100644 --- a/docs/administration-guide.rst +++ b/docs/administration-guide.rst @@ -139,6 +139,12 @@ or ``zfs``) to store the backup data. Datastores are identified by a simple *ID*. You can configure it when setting up the backup server. +.. note:: The `File Layout`_ requires the file system to support more than + 65537 subdirectories per directory. This excludes certain filesystems and + filesystem configuration from being supported as datastore. For example + ``ext4`` without the ``dir_nlink`` feature (which is enabled by default) + and ``ext3``. + Datastore Configuration