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 EE4AB1FF15E for ; Mon, 24 Nov 2025 16:55:34 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 2286AE3E; Mon, 24 Nov 2025 16:55:40 +0100 (CET) Date: Mon, 24 Nov 2025 16:49:21 +0100 To: Mark Schouten via pve-user References: In-Reply-To: MIME-Version: 1.0 Message-ID: List-Id: Proxmox VE user list List-Post: From: "g.husson_proxmox-pve-user--- via pve-user" Precedence: list Cc: g.husson_proxmox-pve-user@liberasys.com X-Mailman-Version: 2.1.29 X-BeenThere: pve-user@lists.proxmox.com List-Subscribe: , List-Unsubscribe: , List-Archive: Reply-To: Proxmox VE user list List-Help: Subject: Re: [PVE-User] Volume chain snapshotting Content-Type: multipart/mixed; boundary="===============0961528942460010892==" Errors-To: pve-user-bounces@lists.proxmox.com Sender: "pve-user" --===============0961528942460010892== Content-Type: message/rfc822 Content-Disposition: inline Return-Path: X-Original-To: pve-user@lists.proxmox.com Delivered-To: pve-user@lists.proxmox.com Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 6F73ED0EA5 for ; Mon, 24 Nov 2025 16:55:38 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 49232E8E for ; Mon, 24 Nov 2025 16:55:08 +0100 (CET) Received: from mailgw1.liberasys.com (mailgw1.liberasys.com [163.172.126.100]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Mon, 24 Nov 2025 16:55:07 +0100 (CET) Received: from mailgw1.liberasys.com (localhost.localdomain [127.0.0.1]) by mailgw1.liberasys.com (Proxmox) with ESMTP id 3E513104EB1F for ; Mon, 24 Nov 2025 16:49:23 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=liberasys.com; h=cc:content-transfer-encoding:content-type:content-type:date :from:from:in-reply-to:message-id:mime-version:references :reply-to:subject:subject:to:to; s=liberasysdkim; bh=/8MNd3wn7Ex 5QeNZSg9d4ZWGk6C7DrlNr3+q3mRPUtA=; b=PmRgK9iEji7fyPpO6HlrrEG5mvv 54V2JTFDsRjipoPQ+Zzo7y2Q0m47sliV66fzBtaWMyPwqYbtcxaVphMestK9yhEd C4oHQMk2MXmqGoBSQiogbwrriSx9n4P45z+z0YKDFh6rrlMrb7gUYvZt/ocY8TCJ Ozck9YnkiX+RVjYqgPZUbLUXFFvfWu87z0FnZYR7+odd59q9jOzhuEgCO23Pzmdl qBFtvYChd45YiD/04eocueTCeOd3oBpQz6TIonuf6y6eXibGLfpKF5pF3JTkA7JK H/rtN2/Js837vd3HV45lK37Ddt9ORM/j5Otygrah2vTCBjXR2bf5+u3sP/g== Message-ID: <35630053-f685-4e5a-93a5-fb61e5cbd146@liberasys.com> Date: Mon, 24 Nov 2025 16:49:21 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: g.husson_proxmox-pve-user@liberasys.com Subject: Re: [PVE-User] Volume chain snapshotting To: Mark Schouten via pve-user References: Content-Language: fr In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 BAYES_00 -1.9 Bayes spam probability is 0 to 1% DKIM_SIGNED 0.1 Message has a DKIM or DK signature, not necessarily valid DKIM_VALID -0.1 Message has at least one valid DKIM or DK signature DKIM_VALID_AU -0.1 Message has a valid DKIM or DK signature from author's domain DKIM_VALID_EF -0.1 Message has a valid DKIM or DK signature from envelope-from domain DMARC_PASS -0.1 DMARC pass policy 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 URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [proxmox.com,liberasys.com,blockbridge.com] Hello Mark. 1. I may be wrong but I think that if your LVM storage has been initialised as THICK provisioning, it should be allright. 2. The best summary I have red about snapshots over iSCSI is : https://kb.blockbridge.com/technote/proxmox-qcow-snapshots-on-lvm/ Best regards, Gautier Husson - Liberasys. Le 24/11/2025 à 15:42, Mark Schouten via pve-user a écrit : > Hi all, > > > > Since PVE9, we have Volume Chain Snapshotting. The documentation states: > 'Enabling or disabling this flag only affects newly created virtual disk > volumes.’ > > > > Two questions: > > 1: Are there plans to make it possible to convert existing LVM Backed > storages with images that already exist? Or is there an idea how we can > convert existing images? > > 2: Why is this in status ’Technology Preview’? What are the risks that > are in the back of the heads of the developers? Or is it mainly ’there > might be bugs, but we expect dataconsistency to be OK’? > > > > Thanks, > > > _______________________________________________ > pve-user mailing list > pve-user@lists.proxmox.com > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user --===============0961528942460010892== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ pve-user mailing list pve-user@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user --===============0961528942460010892==--