From b0b6802bffa157b7cc0165303e2cfc4369e82cbb Mon Sep 17 00:00:00 2001 From: Emmanuel Kasper Date: Thu, 15 Sep 2016 10:07:44 +0200 Subject: [PATCH] Document that virtio-scsi is the recommended controller for PVE >= 4.3 --- qm.adoc | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/qm.adoc b/qm.adoc index 5d0225d..67e5da9 100644 --- a/qm.adoc +++ b/qm.adoc @@ -122,18 +122,19 @@ on this controller. design, allowing higher throughput and a greater number of devices to be connected. You can connect up to 6 devices on this controller. -* the *SCSI* controller, designed in 1985, is commonly found on server -grade hardware, and can connect up to 14 storage devices. {pve} emulates by -default a LSI 53C895A controller. - -* The *Virtio* controller is a generic paravirtualized controller, and is the -recommended setting if you aim for performance. To use this controller, the OS -need to have special drivers which may be included in your installation ISO or -not. Linux distributions have support for the Virtio controller since 2010, and +* the *SCSI* controller, designed in 1985, is commonly found on server grade +hardware, and can connect up to 14 storage devices. {pve} emulates by default a +LSI 53C895A controller. + +A SCSI controller of type _Virtio_ is the recommended setting if you aim for +performance and is automatically selected for newly created Linux VMs since +{pve} 4.3. Linux distributions have support for this controller since 2012, and FreeBSD since 2014. For Windows OSes, you need to provide an extra iso -containing the Virtio drivers during the installation. -// see: https://pve.proxmox.com/wiki/Paravirtualized_Block_Drivers_for_Windows#During_windows_installation. -You can connect up to 16 devices on this controller. +containing the drivers during the installation. +// https://pve.proxmox.com/wiki/Paravirtualized_Block_Drivers_for_Windows#During_windows_installation. + +* The *Virtio* controller, also called virtio-blk to distinguish from +the Virtio SCSI controller, is an older type of paravirtualized controller +which has been superseded in features by the Virtio SCSI Controller. On each controller you attach a number of emulated hard disks, which are backed by a file or a block device residing in the configured storage. The choice of