e9b44bec01
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 <s.ivanov@proxmox.com>