From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id DA19C1FF13C for ; Thu, 05 Feb 2026 17:38:26 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id B9C0616CA2; Thu, 5 Feb 2026 17:38:57 +0100 (CET) From: Fiona Ebner To: pve-devel@lists.proxmox.com Subject: [PATCH docs 1/3] close #7204: storage: lvm thin: document that thin pools must have zeroing enabled Date: Thu, 5 Feb 2026 17:38:04 +0100 Message-ID: <20260205163819.219322-2-f.ebner@proxmox.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260205163819.219322-1-f.ebner@proxmox.com> References: <20260205163819.219322-1-f.ebner@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Bm-Milter-Handled: 55990f41-d878-4baa-be0a-ee34c49e34d2 X-Bm-Transport-Timestamp: 1770309425281 X-SPAM-LEVEL: Spam detection results: 0 AWL -0.017 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment RCVD_IN_VALIDITY_CERTIFIED_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. RCVD_IN_VALIDITY_RPBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. RCVD_IN_VALIDITY_SAFE_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Message-ID-Hash: DCIZIN64G3STTYQ4B33UDZ5KVXN3L75D X-Message-ID-Hash: DCIZIN64G3STTYQ4B33UDZ5KVXN3L75D X-MailFrom: f.ebner@proxmox.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list List-Id: Proxmox VE development discussion List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Signed-off-by: Fiona Ebner --- pve-storage-lvmthin.adoc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/pve-storage-lvmthin.adoc b/pve-storage-lvmthin.adoc index 83f65a3..48505a9 100644 --- a/pve-storage-lvmthin.adoc +++ b/pve-storage-lvmthin.adoc @@ -23,6 +23,11 @@ lvcreate -L 100G -n data pve lvconvert --type thin-pool pve/data ---- +WARNING: The `zero` property for the thin pool must be set or certain operations +for VM images may lead to data corruption! The property is controlled via the +`allocation/thin_pool_zero` LVM configuration option and is enabled by default. +Check with `lvs pve/data -o lv_name,zero` which should indicate `zero` in the +output below the `Zero` heading. Configuration ~~~~~~~~~~~~~ -- 2.47.3