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vm:proxmox:kvm [2020/05/11 22:01] – niziakvm:proxmox:kvm [2022/12/31 17:25] (current) – niziak
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 ====== KVM ====== ====== KVM ======
  
-===== Migrate Windows 7/10 Virtual Box =====+===== CPU model ===== 
 + 
 +[[https://qemu-project.gitlab.io/qemu/system/qemu-cpu-models.html|QEMU / KVM CPU model configuration]] 
 + 
 +===== AES ===== 
 + 
 +Enable AES in CPU flags. Default KVM64 CPU doesn't expose AES flag. 
 +Simple openssl benchmark: 
 +<code bash> 
 +openssl speed -evp aes-128-cbc aes-256-cbc aes-256-ecb 
 + 
 +# Without AES 
 +type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes  16384 bytes 
 +aes-256 cbc     185216.65k   190818.37k   191588.35k   193247.23k   193489.58k   193353.05k 
 +aes-128-cbc     220375.57k   245515.09k   249103.70k   254411.43k   255770.62k   255393.79k 
 + 
 + 
 +# With AES 
 +type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes  16384 bytes 
 +aes-256 cbc     183729.40k   191020.12k   190906.71k   193176.58k   193333.93k   194065.47k 
 +aes-128-cbc     587427.84k  1272103.38k  1317980.93k  1329665.71k  1332060.16k  1332663.64k 
 +</code> 
 + 
  
-==== (Optional) Preparation ==== 
-Cleanup disc space and remove all unnecessary drivers: 
-  * uninstall Virtual Box Guest Additions 
-  * Download and run registry file: [[https://pve.proxmox.com/wiki/File:Mergeide.zip|Mergeide.zip]] 
-  * Restart VM 
-  * ''sdelete -z c: d: e:'' 
-  * Enable ''ClearPageFileAtShutdown.reg'' 
-  * Shutdown VM 
  
-Now two methods are possible: 
 ==== DRAFT ==== ==== DRAFT ====
 Fastest method: create Proxmox machine and import vbox hard discs to newly created Proxmox VM. Fastest method: create Proxmox machine and import vbox hard discs to newly created Proxmox VM.
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     * As QCOW2 files on every file storage: <code bash>qm importdisk 701 WIN7_C.vdi local -format qcow2</code>     * As QCOW2 files on every file storage: <code bash>qm importdisk 701 WIN7_C.vdi local -format qcow2</code>
   * Connect new discs into machine:   * Connect new discs into machine:
-    * <code bash>qm set 701 --scsi<N> local-zfs:vm-701-disk-<N>,cache=writeback,discard=on,size=64G</code>+    * <code bash>qm set 701 --scsi<N> local-zfs:vm-701-disk-<N>,discard=on,size=64G</code>
     * NOTE: ''discard=on'' should be enabled for thin provisioned storage to reclaim unused space     * NOTE: ''discard=on'' should be enabled for thin provisioned storage to reclaim unused space
   * Edit config file to change just connected discs from SCSI to IDE. Remember to update CDROM IDE number to do not be in conflict with new discs.   * Edit config file to change just connected discs from SCSI to IDE. Remember to update CDROM IDE number to do not be in conflict with new discs.
     * <code bash>sed -i 's/scsi/ide/g' /etc/pve/qemu-server/702.conf</code>     * <code bash>sed -i 's/scsi/ide/g' /etc/pve/qemu-server/702.conf</code>
     * <file | /etc/pve/qemu-server/702.conf>     * <file | /etc/pve/qemu-server/702.conf>
-ide0: local-zfs:vm-702-disk-1,cache=writeback,discard=on,size=64G +ide0: local-zfs:vm-702-disk-1,discard=on,size=64G 
-ide1: local-zfs:vm-702-disk-2,cache=writeback,discard=on,size=64g +ide1: local-zfs:vm-702-disk-2,discard=on,size=64g 
-ide2: local-zfs:vm-702-disk-3,cache=writeback,discard=on,size=8G+ide2: local-zfs:vm-702-disk-3,discard=on,size=8G
 ide3: nas326-ISOs:iso/virtio-win-0.1.173.iso,media=cdrom,size=384670K ide3: nas326-ISOs:iso/virtio-win-0.1.173.iso,media=cdrom,size=384670K
-scsi0: local-zfs:vm-702-disk-0,cache=writeback,discard=on,size=32G+scsi0: local-zfs:vm-702-disk-0,discard=on,size=32G
 scsihw: virtio-scsi-pci scsihw: virtio-scsi-pci
 </file> </file>
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   * ERROR: Windows stuck during booting when VirtIO SCSI driver.   * ERROR: Windows stuck during booting when VirtIO SCSI driver.
     * It is known KVM issue with VirtIO SCSI driver when more than 1 CPU core is used!      * It is known KVM issue with VirtIO SCSI driver when more than 1 CPU core is used! 
 +       * [[https://bugzilla.redhat.com/show_bug.cgi?id=1670673]]
 +       * Driver version 61.77.104.17200 2019-06-07 from virtio iso v 1.1.172       
 +       * Update to latest 61.80.104.17300 2019-08-12 (not stable) virtio iso v1.1.173 doesn't help
     * Changing CPU to 1 core solves problem.     * Changing CPU to 1 core solves problem.
 +    * It works with odd number of cores (1,3,5)
 +
 +
  
     * Windows will crash (becasue storage driver is not supported). Windows will reboot into repair mode.     * Windows will crash (becasue storage driver is not supported). Windows will reboot into repair mode.
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 sed -i 's/ide/scsi/g' /etc/pve/qemu-server/701.conf sed -i 's/ide/scsi/g' /etc/pve/qemu-server/701.conf
- 
- 
-==== Importing only disc ==== 
-Fastest method: create Proxmox machine and import vbox hard disc to newly created Proxmox VM. 
-  * Create new Proxmox machine with similar parameters to old one 
-    * [[https://pve.proxmox.com/wiki/Windows_10_guest_best_practices|Windows 10 guest best practices]] 
-    * Remove created Hard Disc (scsi0) 
-  * Import disc images (repeat for all VDI discs) 
-    * As RAW images with all benefits (compression, thin provisioning, snapshots) of ''local-zfs'' storage: <code bash>qm importdisk 701 WIN7_C.vdi local-zfs</code> 
-      * 21743 MB VDI compacted file occupied 15,2G on ZFS with compression ratio 1.24x 
-    * As QCOW2 files on every file storage: <code bash>qm importdisk 701 WIN7_C.vdi local -format qcow2</code> 
-  * Connect new discs into machine: 
-    * <code bash>qm set 701 --scsi<N> local-zfs:vm-701-disk-<N>,cache=writeback,discard=on,size=64G</code> 
-    * NOTE: ''discard=on'' should be enabled for thin provisioned storage to reclaim unused space 
-  * Switch SCSI to IDE: <code bash>sed -i 's/scsi/ide/g' /etc/pve/qemu-server/701.conf</code> 
-    * Manually correct numbering conflict with CD-ROM ide drive 
-    * Setup correct boot order 
-  * Add one dummy (small size) hard disc to SCSI controller 
-  * Enable QEMU Guest Agent 
-  * Boot Windows, go to ''Device Manager'' and install missing drivers: 
-    * PCI Simple Communication Controller ''PCI\VEN1AF4&DEV_1003'' --> Virtio console ''vioserial'' 
-    * Red Hat VirtIO SCSI pass-through controller ''vioscsi\w7\amd64'' 
-    * ''NetKVM\w7\amd64'' 
-    * (''PCI\VEN_1AF4&DEV_1002'') --> VirtIO Balloon Driver ''Balloon\w7\amd64'' 
-    * vm generation id (''ACPI/QEMUVGID'') '''' 
-  * Shutdown machine 
-  * Switch disc controller from IDE to SCSI. Edit ''/etc/pve/qemu-server/701.conf'' 
-    * Setup correct boot order 
- 
-sed -i 's/ide/scsi/g' /etc/pve/qemu-server/701.conf 
- 
-==== NOT WORKING: Importing OVA file ==== 
-  * **Very slow method**, exporting OVA needs to copy all discs into exported and well compressed file. 
-  * In VirtualBox choose "**File**" --> **"Export Appliance"** 
-    * select to export all network cards and MAC addresses 
-  * Proxmox cannot import OVA files directly. Please unpack it with command <code bash>tar -xvf WIN7.ova</code> 
-    * After unpacking, manifest file .ovf will be available. 
-  * <code bash>qm importovf 701 ./WIN7.ovf local-zfs --dryrun --format qcow2</code> 
-    * WARNING: <code>warning: unable to parse the VM name in this OVF manifest, generating a default value</code> 
-    * Create account/Login to VMWare page and download [[https://my.vmware.com/group/vmware/get-download?downloadGroup=OVFTOOL440|ovftool]] 
- 
-T.B.C without success, more similar issues described here: 
-  * [[http://www.baconapplications.com/export-a-virtualbox-machine-to-vmware/|Export a VirtualBox Machine to VMware]] 
-  * [[https://www.maketecheasier.com/convert-virtual-machines-vmware-virtualbox/|How to Convert Virtual Machines from VMware to VirtualBox and Vice Versa]] 
- 
-