From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <f.ebner@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 410C39320F for <pve-devel@lists.proxmox.com>; Fri, 17 Feb 2023 17:09:11 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 23ACD89F0 for <pve-devel@lists.proxmox.com>; Fri, 17 Feb 2023 17:08:41 +0100 (CET) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (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 <pve-devel@lists.proxmox.com>; Fri, 17 Feb 2023 17:08:40 +0100 (CET) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 027EE47808 for <pve-devel@lists.proxmox.com>; Fri, 17 Feb 2023 17:08:40 +0100 (CET) From: Fiona Ebner <f.ebner@proxmox.com> To: pve-devel@lists.proxmox.com Date: Fri, 17 Feb 2023 17:08:34 +0100 Message-Id: <20230217160836.142368-3-f.ebner@proxmox.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230217160836.142368-1-f.ebner@proxmox.com> References: <20230217160836.142368-1-f.ebner@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL -0.003 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: [pve-devel] [PATCH docs 2/4] qm: hard disk controllers: recommend VirtIO controllers X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion <pve-devel.lists.proxmox.com> List-Unsubscribe: <https://lists.proxmox.com/cgi-bin/mailman/options/pve-devel>, <mailto:pve-devel-request@lists.proxmox.com?subject=unsubscribe> List-Archive: <http://lists.proxmox.com/pipermail/pve-devel/> List-Post: <mailto:pve-devel@lists.proxmox.com> List-Help: <mailto:pve-devel-request@lists.proxmox.com?subject=help> List-Subscribe: <https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel>, <mailto:pve-devel-request@lists.proxmox.com?subject=subscribe> X-List-Received-Date: Fri, 17 Feb 2023 16:09:11 -0000 Quoting from [0]: > In general, I advise against using AHCI in production as better > performance (and dev support) can be achieved through virtio. [0]: https://lists.nongnu.org/archive/html/qemu-devel/2023-02/msg03915.html Signed-off-by: Fiona Ebner <f.ebner@proxmox.com> --- qm.adoc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/qm.adoc b/qm.adoc index 629e913..6fc6f5e 100644 --- a/qm.adoc +++ b/qm.adoc @@ -155,6 +155,9 @@ Bus/Controller ^^^^^^^^^^^^^^ QEMU can emulate a number of storage controllers: +TIP: It is highly recommended to use the *VirtIO SCSI* or *VirtIO Block* +controller for performance reasons and because they are better maintained. + * the *IDE* controller, has a design which goes back to the 1984 PC/AT disk controller. Even if this controller has been superseded by recent designs, each and every OS you can think of has support for it, making it a great choice -- 2.30.2