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Gena Makhomed

2017-Mar-14 18:05 UTC

[CentOS-virt] Red Hat VirtIO SCSI pass-through controller

Hello, All!

virtio-win.iso contains two different Windows drivers.
these Windows Server 2012 R2 drivers have different hardware IDs:

\vioscsi\2k12R2\amd64\vioscsi.inf
"Red Hat VirtIO SCSI pass-through controller"
PCI\VEN_1AF4&DEV_1004&SUBSYS_00081AF4&REV_00
PCI\VEN_1AF4&DEV_1048&SUBSYS_11001AF4&REV_01

\viostor\2k12R2\amd64\viostor.inf
"Red Hat VirtIO SCSI controller"
PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00
PCI\VEN_1AF4&DEV_1042&SUBSYS_11001AF4&REV_01

When I use "VirtIO SCSI controller" in virt-manager,
and when I install Windows Server 2012 R2 -
I can use only viostor driver and can't use vioscsi driver,
Windows Server 2012 R2 can't load vioscsi driver (?)
from virtio-win.iso and did not see virtual hard disks
with vioscsi driver. Only viostor driver work normally.

How I can use "Red Hat VirtIO SCSI pass-through controller"
for Windows Server 2012 R2 virtual machine, what I need
to configure in xml-config?

current /etc/libvirt/qemu/windows.xml config:

    <controller type='scsi' index='0'
model='virtio-scsi'>
       <address type='pci' domain='0x0000' bus='0x00'
slot='0x07'
function='0x0'/>
     </controller>

     <disk type='file' device='disk'>
       <driver name='qemu' type='raw' cache='none'
io='native'
discard='unmap'/>
       <source file='/volume/kvm-windows-system'/>
       <target dev='vda' bus='virtio'/>
       <boot order='1'/>
       <address type='pci' domain='0x0000' bus='0x00'
slot='0x08'
function='0x0'/>
     </disk>

Additional info:
===============
virtio-win.iso version: virtio-win-0.1.126.iso
from https://fedoraproject.org/wiki/Windows_Virtio_Drivers

OS: CentOS Linux release 7.3.1611 (Core)

QEMU: qemu-kvm-1.5.3-126.el7_3.5.x86_64

Windows Server 2012 R2 MSDN installation ISO image:
en_windows_server_2012_r2_with_update_x64_dvd_6052708.iso
sha1sum: 865494e969704be1c4496d8614314361d025775e
size: 5397889024 bytes

devcon.exe output inside Windows Server 2012 R2 Virtual Machine:

PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00\3&13C0B0C5&0&40
     Name: Red Hat VirtIO SCSI controller
     Hardware IDs:
         PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00
         PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4
         PCI\VEN_1AF4&DEV_1001&CC_010000
         PCI\VEN_1AF4&DEV_1001&CC_0100
     Compatible IDs:
         PCI\VEN_1AF4&DEV_1001&REV_00
         PCI\VEN_1AF4&DEV_1001
         PCI\VEN_1AF4&CC_010000
         PCI\VEN_1AF4&CC_0100
         PCI\VEN_1AF4
         PCI\CC_010000
         PCI\CC_0100
PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00\3&13C0B0C5&0&50
     Name: Red Hat VirtIO SCSI controller
     Hardware IDs:
         PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00
         PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4
         PCI\VEN_1AF4&DEV_1001&CC_010000
         PCI\VEN_1AF4&DEV_1001&CC_0100
     Compatible IDs:
         PCI\VEN_1AF4&DEV_1001&REV_00
         PCI\VEN_1AF4&DEV_1001
         PCI\VEN_1AF4&CC_010000
         PCI\VEN_1AF4&CC_0100
         PCI\VEN_1AF4
         PCI\CC_010000
         PCI\CC_0100
PCI\VEN_1AF4&DEV_1004&SUBSYS_00081AF4&REV_00\3&13C0B0C5&0&38
     Name: Red Hat VirtIO SCSI controller
     Hardware IDs:
         PCI\VEN_1AF4&DEV_1004&SUBSYS_00081AF4&REV_00
         PCI\VEN_1AF4&DEV_1004&SUBSYS_00081AF4
         PCI\VEN_1AF4&DEV_1004&CC_010000
         PCI\VEN_1AF4&DEV_1004&CC_0100
     Compatible IDs:
         PCI\VEN_1AF4&DEV_1004&REV_00
         PCI\VEN_1AF4&DEV_1004
         PCI\VEN_1AF4&CC_010000
         PCI\VEN_1AF4&CC_0100
         PCI\VEN_1AF4
         PCI\CC_010000
         PCI\CC_0100

-- 
Best regards,
  Gena

Jean-Marc LIGER

2017-Mar-15 15:42 UTC

head link

[CentOS-virt] Red Hat VirtIO SCSI pass-through controller

Le 14/03/2017 ? 19:05, Gena Makhomed a ?crit :
> Hello, All!
>
> virtio-win.iso contains two different Windows drivers.
> these Windows Server 2012 R2 drivers have different hardware IDs:
>
> \vioscsi\2k12R2\amd64\vioscsi.inf
> "Red Hat VirtIO SCSI pass-through controller"
> PCI\VEN_1AF4&DEV_1004&SUBSYS_00081AF4&REV_00
> PCI\VEN_1AF4&DEV_1048&SUBSYS_11001AF4&REV_01
>
> \viostor\2k12R2\amd64\viostor.inf
> "Red Hat VirtIO SCSI controller"
> PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00
> PCI\VEN_1AF4&DEV_1042&SUBSYS_11001AF4&REV_01
>
> When I use "VirtIO SCSI controller" in virt-manager,
> and when I install Windows Server 2012 R2 -
> I can use only viostor driver and can't use vioscsi driver,
> Windows Server 2012 R2 can't load vioscsi driver (?)
> from virtio-win.iso and did not see virtual hard disks
> with vioscsi driver. Only viostor driver work normally.
>
> How I can use "Red Hat VirtIO SCSI pass-through controller"
> for Windows Server 2012 R2 virtual machine, what I need
> to configure in xml-config?
>
> current /etc/libvirt/qemu/windows.xml config:
>
>    <controller type='scsi' index='0'
model='virtio-scsi'>
>       <address type='pci' domain='0x0000'
bus='0x00' slot='0x07'
> function='0x0'/>
>     </controller>
>
>     <disk type='file' device='disk'>
>       <driver name='qemu' type='raw'
cache='none' io='native'
> discard='unmap'/>
>       <source file='/volume/kvm-windows-system'/>
>       <target dev='vda' bus='virtio'/>
>       <boot order='1'/>
>       <address type='pci' domain='0x0000'
bus='0x00' slot='0x08'
> function='0x0'/>
>     </disk>
>
> Additional info:
> ===============>
> virtio-win.iso version: virtio-win-0.1.126.iso
> from https://fedoraproject.org/wiki/Windows_Virtio_Drivers
Maybe you can try the lastest virtio-win-0.1.133.iso :
<https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/latest-virtio/virtio-win.iso>https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/latest-virtio/virtio-win.iso

Or try to reinstall the latest spice guest tools 0.132 :
https://www.spice-space.org/download/binaries/spice-guest-tools/spice-guest-tools-latest.exe
>
> OS: CentOS Linux release 7.3.1611 (Core)
>
> QEMU: qemu-kvm-1.5.3-126.el7_3.5.x86_64
Why don't you upgrade qemu-kvm to qemu-kvm-ev ?
> Windows Server 2012 R2 MSDN installation ISO image:
> en_windows_server_2012_r2_with_update_x64_dvd_6052708.iso
> sha1sum: 865494e969704be1c4496d8614314361d025775e
> size: 5397889024 bytes
>
> devcon.exe output inside Windows Server 2012 R2 Virtual Machine:
>
>
PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00\3&13C0B0C5&0&40
>     Name: Red Hat VirtIO SCSI controller
>     Hardware IDs:
>         PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00
>         PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4
>         PCI\VEN_1AF4&DEV_1001&CC_010000
>         PCI\VEN_1AF4&DEV_1001&CC_0100
>     Compatible IDs:
>         PCI\VEN_1AF4&DEV_1001&REV_00
>         PCI\VEN_1AF4&DEV_1001
>         PCI\VEN_1AF4&CC_010000
>         PCI\VEN_1AF4&CC_0100
>         PCI\VEN_1AF4
>         PCI\CC_010000
>         PCI\CC_0100
>
PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00\3&13C0B0C5&0&50
>     Name: Red Hat VirtIO SCSI controller
>     Hardware IDs:
>         PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00
>         PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4
>         PCI\VEN_1AF4&DEV_1001&CC_010000
>         PCI\VEN_1AF4&DEV_1001&CC_0100
>     Compatible IDs:
>         PCI\VEN_1AF4&DEV_1001&REV_00
>         PCI\VEN_1AF4&DEV_1001
>         PCI\VEN_1AF4&CC_010000
>         PCI\VEN_1AF4&CC_0100
>         PCI\VEN_1AF4
>         PCI\CC_010000
>         PCI\CC_0100
>
PCI\VEN_1AF4&DEV_1004&SUBSYS_00081AF4&REV_00\3&13C0B0C5&0&38
>     Name: Red Hat VirtIO SCSI controller
>     Hardware IDs:
>         PCI\VEN_1AF4&DEV_1004&SUBSYS_00081AF4&REV_00
>         PCI\VEN_1AF4&DEV_1004&SUBSYS_00081AF4
>         PCI\VEN_1AF4&DEV_1004&CC_010000
>         PCI\VEN_1AF4&DEV_1004&CC_0100
>     Compatible IDs:
>         PCI\VEN_1AF4&DEV_1004&REV_00
>         PCI\VEN_1AF4&DEV_1004
>         PCI\VEN_1AF4&CC_010000
>         PCI\VEN_1AF4&CC_0100
>         PCI\VEN_1AF4
>         PCI\CC_010000
>         PCI\CC_0100
>
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Gena Makhomed

2017-Mar-15 16:46 UTC

head link

[CentOS-virt] Red Hat VirtIO SCSI pass-through controller

On 15.03.2017 17:42, Jean-Marc LIGER wrote:
>> When I use "VirtIO SCSI controller" in virt-manager,
>> and when I install Windows Server 2012 R2 -
>> I can use only viostor driver and can't use vioscsi driver,
>> Windows Server 2012 R2 can't load vioscsi driver (?)
>> from virtio-win.iso and did not see virtual hard disks
>> with vioscsi driver. Only viostor driver work normally.
[...]
>> Additional info:
>> ===============>>
>> virtio-win.iso version: virtio-win-0.1.126.iso
>> from https://fedoraproject.org/wiki/Windows_Virtio_Drivers
>
> Maybe you can try the lastest virtio-win-0.1.133.iso :
>
https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/latest-virtio/virtio-win.iso
Ok, I tested with virtio-win.iso versions

0.1.96-1
0.1.102-1
0.1.110-1
0.1.126-2
0.1.133-2

- nothing help, I can't load vioscsi driver in Windows Server 2012 R2.

Also I tested Windows Server 2008 R2 - also can't load vioscsi driver.

Also I tested with qemu-kvm-ev-2.6.0-28.el7_3.3.1.x86_64 - also can't 
load vioscsi driver.

Also I tested two different CentOS 7.3 servers, with different CPUs:
Intel(R) Xeon(R) CPU E5-1650 v2 @ 3.50GHz
Intel(R) Atom(TM) CPU  C2750  @ 2.40GHz
- also can't load vioscsi driver in Windows Server 2012 R2 setup.

Why I can't load vioscsi driver in Windows Virtual Machine?

I am doing something wrong?
> Or try to reinstall the latest spice guest tools 0.132 :
>
https://www.spice-space.org/download/binaries/spice-guest-tools/spice-guest-tools-latest.exe
I can't install Windows Server 2012 R2 with vioscsi driver,
how spice guest tools can help with it?
>> OS: CentOS Linux release 7.3.1611 (Core)
>>
>> QEMU: qemu-kvm-1.5.3-126.el7_3.5.x86_64
>
> Why don't you upgrade qemu-kvm to qemu-kvm-ev ?
>
Already upgrade, it does not help.

-- 
Best regards,
  Gena

Gena Makhomed

2017-Mar-15 20:16 UTC

head link

[CentOS-virt] Red Hat VirtIO SCSI pass-through controller

On 14.03.2017 20:05, Gena Makhomed wrote:
> When I use "VirtIO SCSI controller" in virt-manager,
> and when I install Windows Server 2012 R2 -
> I can use only viostor driver and can't use vioscsi driver,
> Windows Server 2012 R2 can't load vioscsi driver (?)
> from virtio-win.iso and did not see virtual hard disks
> with vioscsi driver. Only viostor driver work normally.
>
> How I can use "Red Hat VirtIO SCSI pass-through controller"
> for Windows Server 2012 R2 virtual machine, what I need
> to configure in xml-config?
>
> current /etc/libvirt/qemu/windows.xml config:
>
>    <controller type='scsi' index='0'
model='virtio-scsi'>
>       <address type='pci' domain='0x0000'
bus='0x00' slot='0x07'
> function='0x0'/>
>     </controller>
>
>     <disk type='file' device='disk'>
>       <driver name='qemu' type='raw'
cache='none' io='native'
> discard='unmap'/>
>       <source file='/volume/kvm-windows-system'/>
>       <target dev='vda' bus='virtio'/>
>       <boot order='1'/>
>       <address type='pci' domain='0x0000'
bus='0x00' slot='0x08'
> function='0x0'/>
>     </disk>
I found solution.

bus='virtio' - this is The paravirtualized block device (virtio-blk)
fou using "Red Hat VirtIO SCSI pass-through controller" vioscsi driver
I need to use only SCSI virtual disks (bus='scsi'), not VirtIO ones.

Correct config fragment:

     <controller type='scsi' index='0'
model='virtio-scsi'>
       <address type='pci' domain='0x0000' bus='0x00'
slot='0x08'
function='0x0'/>
     </controller>

     <disk type='file' device='disk'>
       <driver name='qemu' type='raw' cache='none'
io='native'
discard='unmap'/>
       <source file='/volume/kvm-windows-server-system'/>
       <target dev='sda' bus='scsi'/>
       <boot order='1'/>
       <address type='drive' controller='0' bus='0'
target='0' unit='0'/>
     </disk>

     <disk type='file' device='disk'>
       <driver name='qemu' type='raw' cache='none'
io='native'
discard='unmap'/>
       <source file='/volume/kvm-windows-server-data'/>
       <target dev='sdb' bus='scsi'/>
       <address type='drive' controller='0' bus='0'
target='0' unit='1'/>
     </disk>

Now all works fine, I install Windows Server 2012 R2 with vioscsi driver

And now Windows Server 2012 R2 see disks as "thin provisioned drives".
(SCSI UNMAP feature works only with vioscsi driver, not with viostor).

No more need to use sdelete.exe -z to reclaim unused VM disk space. :-)

More details:

https://technet.microsoft.com/en-us/library/hh831391(v=ws.11).aspx
Thin Provisioning and Trim Storage Overview

https://kallesplayground.wordpress.com/2014/04/26/storage-reclamation-part-2-windows/comment-page-1/
Storage reclamation ? part 2 ? Windows

-- 
Best regards,
  Gena

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