* [pve-devel] [PATCH docs v2 1/2] lvm storage: state snapshot-as-volume-chain is a technology preview
@ 2025-09-12 7:53 Maximiliano Sandoval
2025-09-12 7:53 ` [pve-devel] [PATCH docs v2 2/2] lvm storage: document TPM snaphshot limitations Maximiliano Sandoval
0 siblings, 1 reply; 2+ messages in thread
From: Maximiliano Sandoval @ 2025-09-12 7:53 UTC (permalink / raw)
To: pve-devel
This matches the description in the Changelog for Proxmox VE 9 [1].
[1] https://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_9.0
Signed-off-by: Maximiliano Sandoval <m.sandoval@proxmox.com>
---
Differences from v1:
- Document that snapshots as volume chain cannot be used with TPM images
pve-storage-lvm.adoc | 2 ++
1 file changed, 2 insertions(+)
diff --git a/pve-storage-lvm.adoc b/pve-storage-lvm.adoc
index 6928330..fc2a8ef 100644
--- a/pve-storage-lvm.adoc
+++ b/pve-storage-lvm.adoc
@@ -75,6 +75,8 @@ The snapshot functionality is managed by the PVE storage system.
+
Enabling or disabling this flag only affects newly created virtual disk volumes.
+WARNING: Snapshots as volume chains are currently a **technology preview** in {pve}.
+
.Configuration Example (`/etc/pve/storage.cfg`)
----
lvm: myspace
--
2.47.3
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* [pve-devel] [PATCH docs v2 2/2] lvm storage: document TPM snaphshot limitations
2025-09-12 7:53 [pve-devel] [PATCH docs v2 1/2] lvm storage: state snapshot-as-volume-chain is a technology preview Maximiliano Sandoval
@ 2025-09-12 7:53 ` Maximiliano Sandoval
0 siblings, 0 replies; 2+ messages in thread
From: Maximiliano Sandoval @ 2025-09-12 7:53 UTC (permalink / raw)
To: pve-devel
Users who read about this feature unexpectedly run into this limitation.
Signed-off-by: Maximiliano Sandoval <m.sandoval@proxmox.com>
---
pve-storage-lvm.adoc | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/pve-storage-lvm.adoc b/pve-storage-lvm.adoc
index fc2a8ef..6499978 100644
--- a/pve-storage-lvm.adoc
+++ b/pve-storage-lvm.adoc
@@ -75,6 +75,10 @@ The snapshot functionality is managed by the PVE storage system.
+
Enabling or disabling this flag only affects newly created virtual disk volumes.
+NOTE: It is currently not possible to store TPM disk images in qcow2 format
+footnote:[https://bugzilla.proxmox.com/show_bug.cgi?id=4693],
+preventing taking snapshots as volume chain of these images.
+
WARNING: Snapshots as volume chains are currently a **technology preview** in {pve}.
.Configuration Example (`/etc/pve/storage.cfg`)
--
2.47.3
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pve-devel mailing list
pve-devel@lists.proxmox.com
https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
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