--- qm.adoc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/qm.adoc b/qm.adoc index a9e3d53..bcd80aa 100644 --- a/qm.adoc +++ b/qm.adoc @@ -169,8 +169,8 @@ when the filesystem of a VM marks blocks as unused after removing files, the emulated SCSI controller will relay this information to the storage, which will then shrink the disk image accordingly. -The option *IO Thread* can only be enabled when using a disk with the *Virtio* controller, -or with the *SCSI* controller, when the emulated controller type is *VIRTIO*. +The option *IO Thread* can only be enabled when using a disk with the *VirtIO* controller, +or with the *SCSI* controller, when the emulated controller type is *VirtIO SCSI*. With this enabled, Qemu uses one thread per disk, instead of one thread for all, so it should increase performance when using multiple disks. Note that backups do not currently work with *IO Thread* enabled. -- 2.1.4
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