[pve-devel] [PATCH v4 docs 12/12] storage: add hint to avoid storage aliasing

Aaron Lauterer a.lauterer at proxmox.com
Fri Jun 16 11:57:08 CEST 2023

Signed-off-by: Aaron Lauterer <a.lauterer at proxmox.com>
changes since v3: rephrased it more harshly and with a bit more
background information

 pvesm.adoc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pvesm.adoc b/pvesm.adoc
index d250e0b..46a50f0 100644
--- a/pvesm.adoc
+++ b/pvesm.adoc
@@ -177,6 +177,12 @@ zfspool: local-zfs
 	content images,rootdir
+CAUTION: It is problematic to have multiple storage configurations pointing to
+the exact same underlying storage. Such an _aliased_ storage configuration can
+lead to two different volume IDs ('volid') pointing to the exact same disk
+image. {pve} expects that the images' volume IDs point to, are unique. Choosing
+different content types for _aliased_ storage configurations can be fine, but
+is not recommended.
 Common Storage Properties

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