1 `acpi`: `<boolean>` ('default =' `1`)::
5 `affinity`: `<string>` ::
7 List of host cores used to execute guest processes, for example: 0,5,8-11
9 `agent`: `[enabled=]<1|0> [,freeze-fs-on-backup=<1|0>] [,fstrim_cloned_disks=<1|0>] [,type=<virtio|isa>]` ::
11 Enable/disable communication with the QEMU Guest Agent and its properties.
13 `enabled`=`<boolean>` ('default =' `0`);;
15 Enable/disable communication with a QEMU Guest Agent (QGA) running in the VM.
17 `freeze-fs-on-backup`=`<boolean>` ('default =' `1`);;
19 Freeze/thaw guest filesystems on backup for consistency.
21 `fstrim_cloned_disks`=`<boolean>` ('default =' `0`);;
23 Run fstrim after moving a disk or migrating the VM.
25 `type`=`<isa | virtio>` ('default =' `virtio`);;
29 `arch`: `<aarch64 | x86_64>` ::
31 Virtual processor architecture. Defaults to the host.
35 Arbitrary arguments passed to kvm, for example:
37 args: -no-reboot -smbios 'type=0,vendor=FOO'
39 NOTE: this option is for experts only.
41 `audio0`: `device=<ich9-intel-hda|intel-hda|AC97> [,driver=<spice|none>]` ::
43 Configure a audio device, useful in combination with QXL/Spice.
45 `device`=`<AC97 | ich9-intel-hda | intel-hda>` ;;
47 Configure an audio device.
49 `driver`=`<none | spice>` ('default =' `spice`);;
51 Driver backend for the audio device.
53 `autostart`: `<boolean>` ('default =' `0`)::
55 Automatic restart after crash (currently ignored).
57 `balloon`: `<integer> (0 - N)` ::
59 Amount of target RAM for the VM in MiB. Using zero disables the ballon driver.
61 `bios`: `<ovmf | seabios>` ('default =' `seabios`)::
63 Select BIOS implementation.
65 `boot`: `[[legacy=]<[acdn]{1,4}>] [,order=<device[;device...]>]` ::
67 Specify guest boot order. Use the 'order=' sub-property as usage with no key or 'legacy=' is deprecated.
69 `legacy`=`<[acdn]{1,4}>` ('default =' `cdn`);;
71 Boot on floppy (a), hard disk (c), CD-ROM (d), or network (n). Deprecated, use 'order=' instead.
73 `order`=`<device[;device...]>` ;;
75 The guest will attempt to boot from devices in the order they appear here.
77 Disks, optical drives and passed-through storage USB devices will be directly
78 booted from, NICs will load PXE, and PCIe devices will either behave like disks
79 (e.g. NVMe) or load an option ROM (e.g. RAID controller, hardware NIC).
81 Note that only devices in this list will be marked as bootable and thus loaded
82 by the guest firmware (BIOS/UEFI). If you require multiple disks for booting
83 (e.g. software-raid), you need to specify all of them here.
85 Overrides the deprecated 'legacy=[acdn]*' value when given.
87 `bootdisk`: `(ide|sata|scsi|virtio)\d+` ::
89 Enable booting from specified disk. Deprecated: Use 'boot: order=foo;bar' instead.
91 `cdrom`: `<volume>` ::
93 This is an alias for option -ide2
95 `cicustom`: `[meta=<volume>] [,network=<volume>] [,user=<volume>] [,vendor=<volume>]` ::
97 cloud-init: Specify custom files to replace the automatically generated ones at start.
101 Specify a custom file containing all meta data passed to the VM via"
102 ." cloud-init. This is provider specific meaning configdrive2 and nocloud differ.
104 `network`=`<volume>` ;;
106 To pass a custom file containing all network data to the VM via cloud-init.
110 To pass a custom file containing all user data to the VM via cloud-init.
112 `vendor`=`<volume>` ;;
114 To pass a custom file containing all vendor data to the VM via cloud-init.
116 `cipassword`: `<string>` ::
118 cloud-init: Password to assign the user. Using this is generally not recommended. Use ssh keys instead. Also note that older cloud-init versions do not support hashed passwords.
120 `citype`: `<configdrive2 | nocloud | opennebula>` ::
122 Specifies the cloud-init configuration format. The default depends on the configured operating system type (`ostype`. We use the `nocloud` format for Linux, and `configdrive2` for windows.
124 `ciupgrade`: `<boolean>` ::
126 cloud-init: do an automatic package upgrade after the first boot.
128 `ciuser`: `<string>` ::
130 cloud-init: User name to change ssh keys and password for instead of the image's configured default user.
132 `cores`: `<integer> (1 - N)` ('default =' `1`)::
134 The number of cores per socket.
136 `cpu`: `[[cputype=]<string>] [,flags=<+FLAG[;-FLAG...]>] [,hidden=<1|0>] [,hv-vendor-id=<vendor-id>] [,phys-bits=<8-64|host>] [,reported-model=<enum>]` ::
140 `cputype`=`<string>` ('default =' `kvm64`);;
142 Emulated CPU type. Can be default or custom name (custom model names must be prefixed with 'custom-').
144 `flags`=`<+FLAG[;-FLAG...]>` ;;
146 List of additional CPU flags separated by ';'. Use '+FLAG' to enable, '-FLAG' to disable a flag. Custom CPU models can specify any flag supported by QEMU/KVM, VM-specific flags must be from the following set for security reasons: pcid, spec-ctrl, ibpb, ssbd, virt-ssbd, amd-ssbd, amd-no-ssb, pdpe1gb, md-clear, hv-tlbflush, hv-evmcs, aes
148 `hidden`=`<boolean>` ('default =' `0`);;
150 Do not identify as a KVM virtual machine.
152 `hv-vendor-id`=`<vendor-id>` ;;
154 The Hyper-V vendor ID. Some drivers or programs inside Windows guests need a specific ID.
156 `phys-bits`=`<8-64|host>` ;;
158 The physical memory address bits that are reported to the guest OS. Should be smaller or equal to the host's. Set to 'host' to use value from host CPU, but note that doing so will break live migration to CPUs with other values.
160 `reported-model`=`<486 | Broadwell | Broadwell-IBRS | Broadwell-noTSX | Broadwell-noTSX-IBRS | Cascadelake-Server | Cascadelake-Server-noTSX | Conroe | EPYC | EPYC-IBPB | EPYC-Milan | EPYC-Rome | Haswell | Haswell-IBRS | Haswell-noTSX | Haswell-noTSX-IBRS | Icelake-Client | Icelake-Client-noTSX | Icelake-Server | Icelake-Server-noTSX | IvyBridge | IvyBridge-IBRS | KnightsMill | Nehalem | Nehalem-IBRS | Opteron_G1 | Opteron_G2 | Opteron_G3 | Opteron_G4 | Opteron_G5 | Penryn | SandyBridge | SandyBridge-IBRS | Skylake-Client | Skylake-Client-IBRS | Skylake-Client-noTSX-IBRS | Skylake-Server | Skylake-Server-IBRS | Skylake-Server-noTSX-IBRS | Westmere | Westmere-IBRS | athlon | core2duo | coreduo | host | kvm32 | kvm64 | max | pentium | pentium2 | pentium3 | phenom | qemu32 | qemu64>` ('default =' `kvm64`);;
162 CPU model and vendor to report to the guest. Must be a QEMU/KVM supported model. Only valid for custom CPU model definitions, default models will always report themselves to the guest OS.
164 `cpulimit`: `<number> (0 - 128)` ('default =' `0`)::
168 NOTE: If the computer has 2 CPUs, it has total of '2' CPU time. Value '0' indicates no CPU limit.
170 `cpuunits`: `<integer> (1 - 262144)` ('default =' `cgroup v1: 1024, cgroup v2: 100`)::
172 CPU weight for a VM. Argument is used in the kernel fair scheduler. The larger the number is, the more CPU time this VM gets. Number is relative to weights of all the other running VMs.
174 `description`: `<string>` ::
176 Description for the VM. Shown in the web-interface VM's summary. This is saved as comment inside the configuration file.
178 `efidisk0`: `[file=]<volume> [,efitype=<2m|4m>] [,format=<enum>] [,pre-enrolled-keys=<1|0>] [,size=<DiskSize>]` ::
180 Configure a disk for storing EFI vars.
182 `efitype`=`<2m | 4m>` ('default =' `2m`);;
184 Size and type of the OVMF EFI vars. '4m' is newer and recommended, and required for Secure Boot. For backwards compatibility, '2m' is used if not otherwise specified. Ignored for VMs with arch=aarc64 (ARM).
188 The drive's backing volume.
190 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
192 The drive's backing file's data format.
194 `pre-enrolled-keys`=`<boolean>` ('default =' `0`);;
196 Use am EFI vars template with distribution-specific and Microsoft Standard keys enrolled, if used with 'efitype=4m'. Note that this will enable Secure Boot by default, though it can still be turned off from within the VM.
198 `size`=`<DiskSize>` ;;
200 Disk size. This is purely informational and has no effect.
202 `freeze`: `<boolean>` ::
204 Freeze CPU at startup (use 'c' monitor command to start execution).
206 `hookscript`: `<string>` ::
208 Script that will be executed during various steps in the vms lifetime.
210 `hostpci[n]`: `[host=]<HOSTPCIID[;HOSTPCIID2...]> [,device-id=<hex id>] [,legacy-igd=<1|0>] [,mdev=<string>] [,pcie=<1|0>] [,rombar=<1|0>] [,romfile=<string>] [,sub-device-id=<hex id>] [,sub-vendor-id=<hex id>] [,vendor-id=<hex id>] [,x-vga=<1|0>]` ::
212 Map host PCI devices into guest.
214 NOTE: This option allows direct access to host hardware. So it is no longer
215 possible to migrate such machines - use with special care.
217 CAUTION: Experimental! User reported problems with this option.
219 `device-id`=`<hex id>` ;;
221 Override PCI device ID visible to guest
223 `host`=`<HOSTPCIID[;HOSTPCIID2...]>` ;;
225 Host PCI device pass through. The PCI ID of a host's PCI device or a list
226 of PCI virtual functions of the host. HOSTPCIID syntax is:
228 'bus:dev.func' (hexadecimal numbers)
230 You can us the 'lspci' command to list existing PCI devices.
232 `legacy-igd`=`<boolean>` ('default =' `0`);;
234 Pass this device in legacy IGD mode, making it the primary and exclusive graphics device in the VM. Requires 'pc-i440fx' machine type and VGA set to 'none'.
238 The type of mediated device to use.
239 An instance of this type will be created on startup of the VM and
240 will be cleaned up when the VM stops.
242 `pcie`=`<boolean>` ('default =' `0`);;
244 Choose the PCI-express bus (needs the 'q35' machine model).
246 `rombar`=`<boolean>` ('default =' `1`);;
248 Specify whether or not the device's ROM will be visible in the guest's memory map.
250 `romfile`=`<string>` ;;
252 Custom pci device rom filename (must be located in /usr/share/kvm/).
254 `sub-device-id`=`<hex id>` ;;
256 Override PCI subsystem device ID visible to guest
258 `sub-vendor-id`=`<hex id>` ;;
260 Override PCI subsystem vendor ID visible to guest
262 `vendor-id`=`<hex id>` ;;
264 Override PCI vendor ID visible to guest
266 `x-vga`=`<boolean>` ('default =' `0`);;
268 Enable vfio-vga device support.
270 `hotplug`: `<string>` ('default =' `network,disk,usb`)::
272 Selectively enable hotplug features. This is a comma separated list of hotplug features: 'network', 'disk', 'cpu', 'memory', 'usb' and 'cloudinit'. Use '0' to disable hotplug completely. Using '1' as value is an alias for the default `network,disk,usb`. USB hotplugging is possible for guests with machine version >= 7.1 and ostype l26 or windows > 7.
274 `hugepages`: `<1024 | 2 | any>` ::
276 Enable/disable hugepages memory.
278 `ide[n]`: `[file=]<volume> [,aio=<native|threads|io_uring>] [,backup=<1|0>] [,bps=<bps>] [,bps_max_length=<seconds>] [,bps_rd=<bps>] [,bps_rd_max_length=<seconds>] [,bps_wr=<bps>] [,bps_wr_max_length=<seconds>] [,cache=<enum>] [,cyls=<integer>] [,detect_zeroes=<1|0>] [,discard=<ignore|on>] [,format=<enum>] [,heads=<integer>] [,iops=<iops>] [,iops_max=<iops>] [,iops_max_length=<seconds>] [,iops_rd=<iops>] [,iops_rd_max=<iops>] [,iops_rd_max_length=<seconds>] [,iops_wr=<iops>] [,iops_wr_max=<iops>] [,iops_wr_max_length=<seconds>] [,mbps=<mbps>] [,mbps_max=<mbps>] [,mbps_rd=<mbps>] [,mbps_rd_max=<mbps>] [,mbps_wr=<mbps>] [,mbps_wr_max=<mbps>] [,media=<cdrom|disk>] [,model=<model>] [,replicate=<1|0>] [,rerror=<ignore|report|stop>] [,secs=<integer>] [,serial=<serial>] [,shared=<1|0>] [,size=<DiskSize>] [,snapshot=<1|0>] [,ssd=<1|0>] [,trans=<none|lba|auto>] [,werror=<enum>] [,wwn=<wwn>]` ::
280 Use volume as IDE hard disk or CD-ROM (n is 0 to 3).
282 `aio`=`<io_uring | native | threads>` ;;
286 `backup`=`<boolean>` ;;
288 Whether the drive should be included when making backups.
292 Maximum r/w speed in bytes per second.
294 `bps_max_length`=`<seconds>` ;;
296 Maximum length of I/O bursts in seconds.
300 Maximum read speed in bytes per second.
302 `bps_rd_max_length`=`<seconds>` ;;
304 Maximum length of read I/O bursts in seconds.
308 Maximum write speed in bytes per second.
310 `bps_wr_max_length`=`<seconds>` ;;
312 Maximum length of write I/O bursts in seconds.
314 `cache`=`<directsync | none | unsafe | writeback | writethrough>` ;;
316 The drive's cache mode
318 `cyls`=`<integer>` ;;
320 Force the drive's physical geometry to have a specific cylinder count.
322 `detect_zeroes`=`<boolean>` ;;
324 Controls whether to detect and try to optimize writes of zeroes.
326 `discard`=`<ignore | on>` ;;
328 Controls whether to pass discard/trim requests to the underlying storage.
332 The drive's backing volume.
334 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
336 The drive's backing file's data format.
338 `heads`=`<integer>` ;;
340 Force the drive's physical geometry to have a specific head count.
344 Maximum r/w I/O in operations per second.
346 `iops_max`=`<iops>` ;;
348 Maximum unthrottled r/w I/O pool in operations per second.
350 `iops_max_length`=`<seconds>` ;;
352 Maximum length of I/O bursts in seconds.
354 `iops_rd`=`<iops>` ;;
356 Maximum read I/O in operations per second.
358 `iops_rd_max`=`<iops>` ;;
360 Maximum unthrottled read I/O pool in operations per second.
362 `iops_rd_max_length`=`<seconds>` ;;
364 Maximum length of read I/O bursts in seconds.
366 `iops_wr`=`<iops>` ;;
368 Maximum write I/O in operations per second.
370 `iops_wr_max`=`<iops>` ;;
372 Maximum unthrottled write I/O pool in operations per second.
374 `iops_wr_max_length`=`<seconds>` ;;
376 Maximum length of write I/O bursts in seconds.
380 Maximum r/w speed in megabytes per second.
382 `mbps_max`=`<mbps>` ;;
384 Maximum unthrottled r/w pool in megabytes per second.
386 `mbps_rd`=`<mbps>` ;;
388 Maximum read speed in megabytes per second.
390 `mbps_rd_max`=`<mbps>` ;;
392 Maximum unthrottled read pool in megabytes per second.
394 `mbps_wr`=`<mbps>` ;;
396 Maximum write speed in megabytes per second.
398 `mbps_wr_max`=`<mbps>` ;;
400 Maximum unthrottled write pool in megabytes per second.
402 `media`=`<cdrom | disk>` ('default =' `disk`);;
404 The drive's media type.
408 The drive's reported model name, url-encoded, up to 40 bytes long.
410 `replicate`=`<boolean>` ('default =' `1`);;
412 Whether the drive should considered for replication jobs.
414 `rerror`=`<ignore | report | stop>` ;;
418 `secs`=`<integer>` ;;
420 Force the drive's physical geometry to have a specific sector count.
422 `serial`=`<serial>` ;;
424 The drive's reported serial number, url-encoded, up to 20 bytes long.
426 `shared`=`<boolean>` ('default =' `0`);;
428 Mark this locally-managed volume as available on all nodes.
430 WARNING: This option does not share the volume automatically, it assumes it is shared already!
432 `size`=`<DiskSize>` ;;
434 Disk size. This is purely informational and has no effect.
436 `snapshot`=`<boolean>` ;;
438 Controls qemu's snapshot mode feature. If activated, changes made to the disk are temporary and will be discarded when the VM is shutdown.
442 Whether to expose this drive as an SSD, rather than a rotational hard disk.
444 `trans`=`<auto | lba | none>` ;;
446 Force disk geometry bios translation mode.
448 `werror`=`<enospc | ignore | report | stop>` ;;
454 The drive's worldwide name, encoded as 16 bytes hex string, prefixed by '0x'.
456 `ipconfig[n]`: `[gw=<GatewayIPv4>] [,gw6=<GatewayIPv6>] [,ip=<IPv4Format/CIDR>] [,ip6=<IPv6Format/CIDR>]` ::
458 cloud-init: Specify IP addresses and gateways for the corresponding interface.
460 IP addresses use CIDR notation, gateways are optional but need an IP of the same type specified.
462 The special string 'dhcp' can be used for IP addresses to use DHCP, in which case no explicit
463 gateway should be provided.
464 For IPv6 the special string 'auto' can be used to use stateless autoconfiguration. This requires
465 cloud-init 19.4 or newer.
467 If cloud-init is enabled and neither an IPv4 nor an IPv6 address is specified, it defaults to using
470 `gw`=`<GatewayIPv4>` ;;
472 Default gateway for IPv4 traffic.
474 NOTE: Requires option(s): `ip`
476 `gw6`=`<GatewayIPv6>` ;;
478 Default gateway for IPv6 traffic.
480 NOTE: Requires option(s): `ip6`
482 `ip`=`<IPv4Format/CIDR>` ('default =' `dhcp`);;
484 IPv4 address in CIDR format.
486 `ip6`=`<IPv6Format/CIDR>` ('default =' `dhcp`);;
488 IPv6 address in CIDR format.
490 `ivshmem`: `size=<integer> [,name=<string>]` ::
492 Inter-VM shared memory. Useful for direct communication between VMs, or to the host.
496 The name of the file. Will be prefixed with 'pve-shm-'. Default is the VMID. Will be deleted when the VM is stopped.
498 `size`=`<integer> (1 - N)` ;;
500 The size of the file in MB.
502 `keephugepages`: `<boolean>` ('default =' `0`)::
504 Use together with hugepages. If enabled, hugepages will not not be deleted after VM shutdown and can be used for subsequent starts.
506 `keyboard`: `<da | de | de-ch | en-gb | en-us | es | fi | fr | fr-be | fr-ca | fr-ch | hu | is | it | ja | lt | mk | nl | no | pl | pt | pt-br | sl | sv | tr>` ::
508 Keyboard layout for VNC server. This option is generally not required and is often better handled from within the guest OS.
510 `kvm`: `<boolean>` ('default =' `1`)::
512 Enable/disable KVM hardware virtualization.
514 `localtime`: `<boolean>` ::
516 Set the real time clock (RTC) to local time. This is enabled by default if the `ostype` indicates a Microsoft Windows OS.
518 `lock`: `<backup | clone | create | migrate | rollback | snapshot | snapshot-delete | suspended | suspending>` ::
522 `machine`: `(pc|pc(-i440fx)?-\d+(\.\d+)+(\+pve\d+)?(\.pxe)?|q35|pc-q35-\d+(\.\d+)+(\+pve\d+)?(\.pxe)?|virt(?:-\d+(\.\d+)+)?(\+pve\d+)?)` ::
524 Specifies the QEMU machine type.
526 `memory`: `<integer> (16 - N)` ('default =' `512`)::
528 Amount of RAM for the VM in MiB. This is the maximum available memory when you use the balloon device.
530 `migrate_downtime`: `<number> (0 - N)` ('default =' `0.1`)::
532 Set maximum tolerated downtime (in seconds) for migrations.
534 `migrate_speed`: `<integer> (0 - N)` ('default =' `0`)::
536 Set maximum speed (in MB/s) for migrations. Value 0 is no limit.
538 `name`: `<string>` ::
540 Set a name for the VM. Only used on the configuration web interface.
542 `nameserver`: `<string>` ::
544 cloud-init: Sets DNS server IP address for a container. Create will automatically use the setting from the host if neither searchdomain nor nameserver are set.
546 `net[n]`: `[model=]<enum> [,bridge=<bridge>] [,firewall=<1|0>] [,link_down=<1|0>] [,macaddr=<XX:XX:XX:XX:XX:XX>] [,mtu=<integer>] [,queues=<integer>] [,rate=<number>] [,tag=<integer>] [,trunks=<vlanid[;vlanid...]>] [,<model>=<macaddr>]` ::
548 Specify network devices.
550 `bridge`=`<bridge>` ;;
552 Bridge to attach the network device to. The Proxmox VE standard bridge
555 If you do not specify a bridge, we create a kvm user (NATed) network
556 device, which provides DHCP and DNS services. The following addresses
563 The DHCP server assign addresses to the guest starting from 10.0.2.15.
565 `firewall`=`<boolean>` ;;
567 Whether this interface should be protected by the firewall.
569 `link_down`=`<boolean>` ;;
571 Whether this interface should be disconnected (like pulling the plug).
573 `macaddr`=`<XX:XX:XX:XX:XX:XX>` ;;
575 A common MAC address with the I/G (Individual/Group) bit not set.
577 `model`=`<e1000 | e1000-82540em | e1000-82544gc | e1000-82545em | e1000e | i82551 | i82557b | i82559er | ne2k_isa | ne2k_pci | pcnet | rtl8139 | virtio | vmxnet3>` ;;
579 Network Card Model. The 'virtio' model provides the best performance with very low CPU overhead. If your guest does not support this driver, it is usually best to use 'e1000'.
581 `mtu`=`<integer> (1 - 65520)` ;;
583 Force MTU, for VirtIO only. Set to '1' to use the bridge MTU
585 `queues`=`<integer> (0 - 64)` ;;
587 Number of packet queues to be used on the device.
589 `rate`=`<number> (0 - N)` ;;
591 Rate limit in mbps (megabytes per second) as floating point number.
593 `tag`=`<integer> (1 - 4094)` ;;
595 VLAN tag to apply to packets on this interface.
597 `trunks`=`<vlanid[;vlanid...]>` ;;
599 VLAN trunks to pass through this interface.
601 `numa`: `<boolean>` ('default =' `0`)::
605 `numa[n]`: `cpus=<id[-id];...> [,hostnodes=<id[-id];...>] [,memory=<number>] [,policy=<preferred|bind|interleave>]` ::
609 `cpus`=`<id[-id];...>` ;;
611 CPUs accessing this NUMA node.
613 `hostnodes`=`<id[-id];...>` ;;
615 Host NUMA nodes to use.
617 `memory`=`<number>` ;;
619 Amount of memory this NUMA node provides.
621 `policy`=`<bind | interleave | preferred>` ;;
623 NUMA allocation policy.
625 `onboot`: `<boolean>` ('default =' `0`)::
627 Specifies whether a VM will be started during system bootup.
629 `ostype`: `<l24 | l26 | other | solaris | w2k | w2k3 | w2k8 | win10 | win11 | win7 | win8 | wvista | wxp>` ::
631 Specify guest operating system. This is used to enable special
632 optimization/features for specific operating systems:
635 other;; unspecified OS
636 wxp;; Microsoft Windows XP
637 w2k;; Microsoft Windows 2000
638 w2k3;; Microsoft Windows 2003
639 w2k8;; Microsoft Windows 2008
640 wvista;; Microsoft Windows Vista
641 win7;; Microsoft Windows 7
642 win8;; Microsoft Windows 8/2012/2012r2
643 win10;; Microsoft Windows 10/2016/2019
644 win11;; Microsoft Windows 11/2022
645 l24;; Linux 2.4 Kernel
646 l26;; Linux 2.6 - 6.X Kernel
647 solaris;; Solaris/OpenSolaris/OpenIndiania kernel
649 `parallel[n]`: `/dev/parport\d+|/dev/usb/lp\d+` ::
651 Map host parallel devices (n is 0 to 2).
653 NOTE: This option allows direct access to host hardware. So it is no longer possible to migrate such
654 machines - use with special care.
656 CAUTION: Experimental! User reported problems with this option.
658 `protection`: `<boolean>` ('default =' `0`)::
660 Sets the protection flag of the VM. This will disable the remove VM and remove disk operations.
662 `reboot`: `<boolean>` ('default =' `1`)::
664 Allow reboot. If set to '0' the VM exit on reboot.
666 `rng0`: `[source=]</dev/urandom|/dev/random|/dev/hwrng> [,max_bytes=<integer>] [,period=<integer>]` ::
668 Configure a VirtIO-based Random Number Generator.
670 `max_bytes`=`<integer>` ('default =' `1024`);;
672 Maximum bytes of entropy allowed to get injected into the guest every 'period' milliseconds. Prefer a lower value when using '/dev/random' as source. Use `0` to disable limiting (potentially dangerous!).
674 `period`=`<integer>` ('default =' `1000`);;
676 Every 'period' milliseconds the entropy-injection quota is reset, allowing the guest to retrieve another 'max_bytes' of entropy.
678 `source`=`</dev/hwrng | /dev/random | /dev/urandom>` ;;
680 The file on the host to gather entropy from. In most cases '/dev/urandom' should be preferred over '/dev/random' to avoid entropy-starvation issues on the host. Using urandom does *not* decrease security in any meaningful way, as it's still seeded from real entropy, and the bytes provided will most likely be mixed with real entropy on the guest as well. '/dev/hwrng' can be used to pass through a hardware RNG from the host.
682 `sata[n]`: `[file=]<volume> [,aio=<native|threads|io_uring>] [,backup=<1|0>] [,bps=<bps>] [,bps_max_length=<seconds>] [,bps_rd=<bps>] [,bps_rd_max_length=<seconds>] [,bps_wr=<bps>] [,bps_wr_max_length=<seconds>] [,cache=<enum>] [,cyls=<integer>] [,detect_zeroes=<1|0>] [,discard=<ignore|on>] [,format=<enum>] [,heads=<integer>] [,iops=<iops>] [,iops_max=<iops>] [,iops_max_length=<seconds>] [,iops_rd=<iops>] [,iops_rd_max=<iops>] [,iops_rd_max_length=<seconds>] [,iops_wr=<iops>] [,iops_wr_max=<iops>] [,iops_wr_max_length=<seconds>] [,mbps=<mbps>] [,mbps_max=<mbps>] [,mbps_rd=<mbps>] [,mbps_rd_max=<mbps>] [,mbps_wr=<mbps>] [,mbps_wr_max=<mbps>] [,media=<cdrom|disk>] [,replicate=<1|0>] [,rerror=<ignore|report|stop>] [,secs=<integer>] [,serial=<serial>] [,shared=<1|0>] [,size=<DiskSize>] [,snapshot=<1|0>] [,ssd=<1|0>] [,trans=<none|lba|auto>] [,werror=<enum>] [,wwn=<wwn>]` ::
684 Use volume as SATA hard disk or CD-ROM (n is 0 to 5).
686 `aio`=`<io_uring | native | threads>` ;;
690 `backup`=`<boolean>` ;;
692 Whether the drive should be included when making backups.
696 Maximum r/w speed in bytes per second.
698 `bps_max_length`=`<seconds>` ;;
700 Maximum length of I/O bursts in seconds.
704 Maximum read speed in bytes per second.
706 `bps_rd_max_length`=`<seconds>` ;;
708 Maximum length of read I/O bursts in seconds.
712 Maximum write speed in bytes per second.
714 `bps_wr_max_length`=`<seconds>` ;;
716 Maximum length of write I/O bursts in seconds.
718 `cache`=`<directsync | none | unsafe | writeback | writethrough>` ;;
720 The drive's cache mode
722 `cyls`=`<integer>` ;;
724 Force the drive's physical geometry to have a specific cylinder count.
726 `detect_zeroes`=`<boolean>` ;;
728 Controls whether to detect and try to optimize writes of zeroes.
730 `discard`=`<ignore | on>` ;;
732 Controls whether to pass discard/trim requests to the underlying storage.
736 The drive's backing volume.
738 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
740 The drive's backing file's data format.
742 `heads`=`<integer>` ;;
744 Force the drive's physical geometry to have a specific head count.
748 Maximum r/w I/O in operations per second.
750 `iops_max`=`<iops>` ;;
752 Maximum unthrottled r/w I/O pool in operations per second.
754 `iops_max_length`=`<seconds>` ;;
756 Maximum length of I/O bursts in seconds.
758 `iops_rd`=`<iops>` ;;
760 Maximum read I/O in operations per second.
762 `iops_rd_max`=`<iops>` ;;
764 Maximum unthrottled read I/O pool in operations per second.
766 `iops_rd_max_length`=`<seconds>` ;;
768 Maximum length of read I/O bursts in seconds.
770 `iops_wr`=`<iops>` ;;
772 Maximum write I/O in operations per second.
774 `iops_wr_max`=`<iops>` ;;
776 Maximum unthrottled write I/O pool in operations per second.
778 `iops_wr_max_length`=`<seconds>` ;;
780 Maximum length of write I/O bursts in seconds.
784 Maximum r/w speed in megabytes per second.
786 `mbps_max`=`<mbps>` ;;
788 Maximum unthrottled r/w pool in megabytes per second.
790 `mbps_rd`=`<mbps>` ;;
792 Maximum read speed in megabytes per second.
794 `mbps_rd_max`=`<mbps>` ;;
796 Maximum unthrottled read pool in megabytes per second.
798 `mbps_wr`=`<mbps>` ;;
800 Maximum write speed in megabytes per second.
802 `mbps_wr_max`=`<mbps>` ;;
804 Maximum unthrottled write pool in megabytes per second.
806 `media`=`<cdrom | disk>` ('default =' `disk`);;
808 The drive's media type.
810 `replicate`=`<boolean>` ('default =' `1`);;
812 Whether the drive should considered for replication jobs.
814 `rerror`=`<ignore | report | stop>` ;;
818 `secs`=`<integer>` ;;
820 Force the drive's physical geometry to have a specific sector count.
822 `serial`=`<serial>` ;;
824 The drive's reported serial number, url-encoded, up to 20 bytes long.
826 `shared`=`<boolean>` ('default =' `0`);;
828 Mark this locally-managed volume as available on all nodes.
830 WARNING: This option does not share the volume automatically, it assumes it is shared already!
832 `size`=`<DiskSize>` ;;
834 Disk size. This is purely informational and has no effect.
836 `snapshot`=`<boolean>` ;;
838 Controls qemu's snapshot mode feature. If activated, changes made to the disk are temporary and will be discarded when the VM is shutdown.
842 Whether to expose this drive as an SSD, rather than a rotational hard disk.
844 `trans`=`<auto | lba | none>` ;;
846 Force disk geometry bios translation mode.
848 `werror`=`<enospc | ignore | report | stop>` ;;
854 The drive's worldwide name, encoded as 16 bytes hex string, prefixed by '0x'.
856 `scsi[n]`: `[file=]<volume> [,aio=<native|threads|io_uring>] [,backup=<1|0>] [,bps=<bps>] [,bps_max_length=<seconds>] [,bps_rd=<bps>] [,bps_rd_max_length=<seconds>] [,bps_wr=<bps>] [,bps_wr_max_length=<seconds>] [,cache=<enum>] [,cyls=<integer>] [,detect_zeroes=<1|0>] [,discard=<ignore|on>] [,format=<enum>] [,heads=<integer>] [,iops=<iops>] [,iops_max=<iops>] [,iops_max_length=<seconds>] [,iops_rd=<iops>] [,iops_rd_max=<iops>] [,iops_rd_max_length=<seconds>] [,iops_wr=<iops>] [,iops_wr_max=<iops>] [,iops_wr_max_length=<seconds>] [,iothread=<1|0>] [,mbps=<mbps>] [,mbps_max=<mbps>] [,mbps_rd=<mbps>] [,mbps_rd_max=<mbps>] [,mbps_wr=<mbps>] [,mbps_wr_max=<mbps>] [,media=<cdrom|disk>] [,queues=<integer>] [,replicate=<1|0>] [,rerror=<ignore|report|stop>] [,ro=<1|0>] [,scsiblock=<1|0>] [,secs=<integer>] [,serial=<serial>] [,shared=<1|0>] [,size=<DiskSize>] [,snapshot=<1|0>] [,ssd=<1|0>] [,trans=<none|lba|auto>] [,werror=<enum>] [,wwn=<wwn>]` ::
858 Use volume as SCSI hard disk or CD-ROM (n is 0 to 30).
860 `aio`=`<io_uring | native | threads>` ;;
864 `backup`=`<boolean>` ;;
866 Whether the drive should be included when making backups.
870 Maximum r/w speed in bytes per second.
872 `bps_max_length`=`<seconds>` ;;
874 Maximum length of I/O bursts in seconds.
878 Maximum read speed in bytes per second.
880 `bps_rd_max_length`=`<seconds>` ;;
882 Maximum length of read I/O bursts in seconds.
886 Maximum write speed in bytes per second.
888 `bps_wr_max_length`=`<seconds>` ;;
890 Maximum length of write I/O bursts in seconds.
892 `cache`=`<directsync | none | unsafe | writeback | writethrough>` ;;
894 The drive's cache mode
896 `cyls`=`<integer>` ;;
898 Force the drive's physical geometry to have a specific cylinder count.
900 `detect_zeroes`=`<boolean>` ;;
902 Controls whether to detect and try to optimize writes of zeroes.
904 `discard`=`<ignore | on>` ;;
906 Controls whether to pass discard/trim requests to the underlying storage.
910 The drive's backing volume.
912 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
914 The drive's backing file's data format.
916 `heads`=`<integer>` ;;
918 Force the drive's physical geometry to have a specific head count.
922 Maximum r/w I/O in operations per second.
924 `iops_max`=`<iops>` ;;
926 Maximum unthrottled r/w I/O pool in operations per second.
928 `iops_max_length`=`<seconds>` ;;
930 Maximum length of I/O bursts in seconds.
932 `iops_rd`=`<iops>` ;;
934 Maximum read I/O in operations per second.
936 `iops_rd_max`=`<iops>` ;;
938 Maximum unthrottled read I/O pool in operations per second.
940 `iops_rd_max_length`=`<seconds>` ;;
942 Maximum length of read I/O bursts in seconds.
944 `iops_wr`=`<iops>` ;;
946 Maximum write I/O in operations per second.
948 `iops_wr_max`=`<iops>` ;;
950 Maximum unthrottled write I/O pool in operations per second.
952 `iops_wr_max_length`=`<seconds>` ;;
954 Maximum length of write I/O bursts in seconds.
956 `iothread`=`<boolean>` ;;
958 Whether to use iothreads for this drive
962 Maximum r/w speed in megabytes per second.
964 `mbps_max`=`<mbps>` ;;
966 Maximum unthrottled r/w pool in megabytes per second.
968 `mbps_rd`=`<mbps>` ;;
970 Maximum read speed in megabytes per second.
972 `mbps_rd_max`=`<mbps>` ;;
974 Maximum unthrottled read pool in megabytes per second.
976 `mbps_wr`=`<mbps>` ;;
978 Maximum write speed in megabytes per second.
980 `mbps_wr_max`=`<mbps>` ;;
982 Maximum unthrottled write pool in megabytes per second.
984 `media`=`<cdrom | disk>` ('default =' `disk`);;
986 The drive's media type.
988 `queues`=`<integer> (2 - N)` ;;
992 `replicate`=`<boolean>` ('default =' `1`);;
994 Whether the drive should considered for replication jobs.
996 `rerror`=`<ignore | report | stop>` ;;
1002 Whether the drive is read-only.
1004 `scsiblock`=`<boolean>` ('default =' `0`);;
1006 whether to use scsi-block for full passthrough of host block device
1008 WARNING: can lead to I/O errors in combination with low memory or high memory fragmentation on host
1010 `secs`=`<integer>` ;;
1012 Force the drive's physical geometry to have a specific sector count.
1014 `serial`=`<serial>` ;;
1016 The drive's reported serial number, url-encoded, up to 20 bytes long.
1018 `shared`=`<boolean>` ('default =' `0`);;
1020 Mark this locally-managed volume as available on all nodes.
1022 WARNING: This option does not share the volume automatically, it assumes it is shared already!
1024 `size`=`<DiskSize>` ;;
1026 Disk size. This is purely informational and has no effect.
1028 `snapshot`=`<boolean>` ;;
1030 Controls qemu's snapshot mode feature. If activated, changes made to the disk are temporary and will be discarded when the VM is shutdown.
1032 `ssd`=`<boolean>` ;;
1034 Whether to expose this drive as an SSD, rather than a rotational hard disk.
1036 `trans`=`<auto | lba | none>` ;;
1038 Force disk geometry bios translation mode.
1040 `werror`=`<enospc | ignore | report | stop>` ;;
1046 The drive's worldwide name, encoded as 16 bytes hex string, prefixed by '0x'.
1048 `scsihw`: `<lsi | lsi53c810 | megasas | pvscsi | virtio-scsi-pci | virtio-scsi-single>` ('default =' `lsi`)::
1050 SCSI controller model
1052 `searchdomain`: `<string>` ::
1054 cloud-init: Sets DNS search domains for a container. Create will automatically use the setting from the host if neither searchdomain nor nameserver are set.
1056 `serial[n]`: `(/dev/.+|socket)` ::
1058 Create a serial device inside the VM (n is 0 to 3), and pass through a
1059 host serial device (i.e. /dev/ttyS0), or create a unix socket on the
1060 host side (use 'qm terminal' to open a terminal connection).
1062 NOTE: If you pass through a host serial device, it is no longer possible to migrate such machines -
1063 use with special care.
1065 CAUTION: Experimental! User reported problems with this option.
1067 `shares`: `<integer> (0 - 50000)` ('default =' `1000`)::
1069 Amount of memory shares for auto-ballooning. The larger the number is, the more memory this VM gets. Number is relative to weights of all other running VMs. Using zero disables auto-ballooning. Auto-ballooning is done by pvestatd.
1071 `smbios1`: `[base64=<1|0>] [,family=<Base64 encoded string>] [,manufacturer=<Base64 encoded string>] [,product=<Base64 encoded string>] [,serial=<Base64 encoded string>] [,sku=<Base64 encoded string>] [,uuid=<UUID>] [,version=<Base64 encoded string>]` ::
1073 Specify SMBIOS type 1 fields.
1075 `base64`=`<boolean>` ;;
1077 Flag to indicate that the SMBIOS values are base64 encoded
1079 `family`=`<Base64 encoded string>` ;;
1081 Set SMBIOS1 family string.
1083 `manufacturer`=`<Base64 encoded string>` ;;
1085 Set SMBIOS1 manufacturer.
1087 `product`=`<Base64 encoded string>` ;;
1089 Set SMBIOS1 product ID.
1091 `serial`=`<Base64 encoded string>` ;;
1093 Set SMBIOS1 serial number.
1095 `sku`=`<Base64 encoded string>` ;;
1097 Set SMBIOS1 SKU string.
1103 `version`=`<Base64 encoded string>` ;;
1105 Set SMBIOS1 version.
1107 `smp`: `<integer> (1 - N)` ('default =' `1`)::
1109 The number of CPUs. Please use option -sockets instead.
1111 `sockets`: `<integer> (1 - N)` ('default =' `1`)::
1113 The number of CPU sockets.
1115 `spice_enhancements`: `[foldersharing=<1|0>] [,videostreaming=<off|all|filter>]` ::
1117 Configure additional enhancements for SPICE.
1119 `foldersharing`=`<boolean>` ('default =' `0`);;
1121 Enable folder sharing via SPICE. Needs Spice-WebDAV daemon installed in the VM.
1123 `videostreaming`=`<all | filter | off>` ('default =' `off`);;
1125 Enable video streaming. Uses compression for detected video streams.
1127 `sshkeys`: `<string>` ::
1129 cloud-init: Setup public SSH keys (one key per line, OpenSSH format).
1131 `startdate`: `(now | YYYY-MM-DD | YYYY-MM-DDTHH:MM:SS)` ('default =' `now`)::
1133 Set the initial date of the real time clock. Valid format for date are:'now' or '2006-06-17T16:01:21' or '2006-06-17'.
1135 `startup`: `[[order=]\d+] [,up=\d+] [,down=\d+] ` ::
1137 Startup and shutdown behavior. Order is a non-negative number defining the general startup order. Shutdown in done with reverse ordering. Additionally you can set the 'up' or 'down' delay in seconds, which specifies a delay to wait before the next VM is started or stopped.
1139 `tablet`: `<boolean>` ('default =' `1`)::
1141 Enable/disable the USB tablet device. This device is usually needed to allow absolute mouse positioning with VNC. Else the mouse runs out of sync with normal VNC clients. If you're running lots of console-only guests on one host, you may consider disabling this to save some context switches. This is turned off by default if you use spice (`qm set <vmid> --vga qxl`).
1143 `tags`: `<string>` ::
1145 Tags of the VM. This is only meta information.
1147 `tdf`: `<boolean>` ('default =' `0`)::
1149 Enable/disable time drift fix.
1151 `template`: `<boolean>` ('default =' `0`)::
1153 Enable/disable Template.
1155 `tpmstate0`: `[file=]<volume> [,size=<DiskSize>] [,version=<v1.2|v2.0>]` ::
1157 Configure a Disk for storing TPM state. The format is fixed to 'raw'.
1159 `file`=`<volume>` ;;
1161 The drive's backing volume.
1163 `size`=`<DiskSize>` ;;
1165 Disk size. This is purely informational and has no effect.
1167 `version`=`<v1.2 | v2.0>` ('default =' `v2.0`);;
1169 The TPM interface version. v2.0 is newer and should be preferred. Note that this cannot be changed later on.
1171 `unused[n]`: `[file=]<volume>` ::
1173 Reference to unused volumes. This is used internally, and should not be modified manually.
1175 `file`=`<volume>` ;;
1177 The drive's backing volume.
1179 `usb[n]`: `[host=]<HOSTUSBDEVICE|spice> [,usb3=<1|0>]` ::
1181 Configure an USB device (n is 0 to 4, for machine version >= 7.1 and ostype l26 or windows > 7, n can be up to 14).
1183 `host`=`<HOSTUSBDEVICE|spice>` ;;
1185 The Host USB device or port or the value 'spice'. HOSTUSBDEVICE syntax is:
1187 'bus-port(.port)*' (decimal numbers) or
1188 'vendor_id:product_id' (hexadeciaml numbers) or
1191 You can use the 'lsusb -t' command to list existing usb devices.
1193 NOTE: This option allows direct access to host hardware. So it is no longer possible to migrate such
1194 machines - use with special care.
1196 The value 'spice' can be used to add a usb redirection devices for spice.
1198 `usb3`=`<boolean>` ('default =' `0`);;
1200 Specifies whether if given host option is a USB3 device or port. For modern guests (machine version >= 7.1 and ostype l26 and windows > 7), this flag is irrelevant (all devices are plugged into a xhci controller).
1202 `vcpus`: `<integer> (1 - N)` ('default =' `0`)::
1204 Number of hotplugged vcpus.
1206 `vga`: `[[type=]<enum>] [,memory=<integer>]` ::
1208 Configure the VGA Hardware. If you want to use high resolution modes (>= 1280x1024x16) you may need to increase the vga memory option. Since QEMU 2.9 the default VGA display type is 'std' for all OS types besides some Windows versions (XP and older) which use 'cirrus'. The 'qxl' option enables the SPICE display server. For win* OS you can select how many independent displays you want, Linux guests can add displays them self.
1209 You can also run without any graphic card, using a serial device as terminal.
1211 `memory`=`<integer> (4 - 512)` ;;
1213 Sets the VGA memory (in MiB). Has no effect with serial display.
1215 `type`=`<cirrus | none | qxl | qxl2 | qxl3 | qxl4 | serial0 | serial1 | serial2 | serial3 | std | virtio | virtio-gl | vmware>` ('default =' `std`);;
1217 Select the VGA type.
1219 `virtio[n]`: `[file=]<volume> [,aio=<native|threads|io_uring>] [,backup=<1|0>] [,bps=<bps>] [,bps_max_length=<seconds>] [,bps_rd=<bps>] [,bps_rd_max_length=<seconds>] [,bps_wr=<bps>] [,bps_wr_max_length=<seconds>] [,cache=<enum>] [,cyls=<integer>] [,detect_zeroes=<1|0>] [,discard=<ignore|on>] [,format=<enum>] [,heads=<integer>] [,iops=<iops>] [,iops_max=<iops>] [,iops_max_length=<seconds>] [,iops_rd=<iops>] [,iops_rd_max=<iops>] [,iops_rd_max_length=<seconds>] [,iops_wr=<iops>] [,iops_wr_max=<iops>] [,iops_wr_max_length=<seconds>] [,iothread=<1|0>] [,mbps=<mbps>] [,mbps_max=<mbps>] [,mbps_rd=<mbps>] [,mbps_rd_max=<mbps>] [,mbps_wr=<mbps>] [,mbps_wr_max=<mbps>] [,media=<cdrom|disk>] [,replicate=<1|0>] [,rerror=<ignore|report|stop>] [,ro=<1|0>] [,secs=<integer>] [,serial=<serial>] [,shared=<1|0>] [,size=<DiskSize>] [,snapshot=<1|0>] [,trans=<none|lba|auto>] [,werror=<enum>]` ::
1221 Use volume as VIRTIO hard disk (n is 0 to 15).
1223 `aio`=`<io_uring | native | threads>` ;;
1227 `backup`=`<boolean>` ;;
1229 Whether the drive should be included when making backups.
1233 Maximum r/w speed in bytes per second.
1235 `bps_max_length`=`<seconds>` ;;
1237 Maximum length of I/O bursts in seconds.
1241 Maximum read speed in bytes per second.
1243 `bps_rd_max_length`=`<seconds>` ;;
1245 Maximum length of read I/O bursts in seconds.
1249 Maximum write speed in bytes per second.
1251 `bps_wr_max_length`=`<seconds>` ;;
1253 Maximum length of write I/O bursts in seconds.
1255 `cache`=`<directsync | none | unsafe | writeback | writethrough>` ;;
1257 The drive's cache mode
1259 `cyls`=`<integer>` ;;
1261 Force the drive's physical geometry to have a specific cylinder count.
1263 `detect_zeroes`=`<boolean>` ;;
1265 Controls whether to detect and try to optimize writes of zeroes.
1267 `discard`=`<ignore | on>` ;;
1269 Controls whether to pass discard/trim requests to the underlying storage.
1271 `file`=`<volume>` ;;
1273 The drive's backing volume.
1275 `format`=`<cloop | cow | qcow | qcow2 | qed | raw | vmdk>` ;;
1277 The drive's backing file's data format.
1279 `heads`=`<integer>` ;;
1281 Force the drive's physical geometry to have a specific head count.
1285 Maximum r/w I/O in operations per second.
1287 `iops_max`=`<iops>` ;;
1289 Maximum unthrottled r/w I/O pool in operations per second.
1291 `iops_max_length`=`<seconds>` ;;
1293 Maximum length of I/O bursts in seconds.
1295 `iops_rd`=`<iops>` ;;
1297 Maximum read I/O in operations per second.
1299 `iops_rd_max`=`<iops>` ;;
1301 Maximum unthrottled read I/O pool in operations per second.
1303 `iops_rd_max_length`=`<seconds>` ;;
1305 Maximum length of read I/O bursts in seconds.
1307 `iops_wr`=`<iops>` ;;
1309 Maximum write I/O in operations per second.
1311 `iops_wr_max`=`<iops>` ;;
1313 Maximum unthrottled write I/O pool in operations per second.
1315 `iops_wr_max_length`=`<seconds>` ;;
1317 Maximum length of write I/O bursts in seconds.
1319 `iothread`=`<boolean>` ;;
1321 Whether to use iothreads for this drive
1325 Maximum r/w speed in megabytes per second.
1327 `mbps_max`=`<mbps>` ;;
1329 Maximum unthrottled r/w pool in megabytes per second.
1331 `mbps_rd`=`<mbps>` ;;
1333 Maximum read speed in megabytes per second.
1335 `mbps_rd_max`=`<mbps>` ;;
1337 Maximum unthrottled read pool in megabytes per second.
1339 `mbps_wr`=`<mbps>` ;;
1341 Maximum write speed in megabytes per second.
1343 `mbps_wr_max`=`<mbps>` ;;
1345 Maximum unthrottled write pool in megabytes per second.
1347 `media`=`<cdrom | disk>` ('default =' `disk`);;
1349 The drive's media type.
1351 `replicate`=`<boolean>` ('default =' `1`);;
1353 Whether the drive should considered for replication jobs.
1355 `rerror`=`<ignore | report | stop>` ;;
1361 Whether the drive is read-only.
1363 `secs`=`<integer>` ;;
1365 Force the drive's physical geometry to have a specific sector count.
1367 `serial`=`<serial>` ;;
1369 The drive's reported serial number, url-encoded, up to 20 bytes long.
1371 `shared`=`<boolean>` ('default =' `0`);;
1373 Mark this locally-managed volume as available on all nodes.
1375 WARNING: This option does not share the volume automatically, it assumes it is shared already!
1377 `size`=`<DiskSize>` ;;
1379 Disk size. This is purely informational and has no effect.
1381 `snapshot`=`<boolean>` ;;
1383 Controls qemu's snapshot mode feature. If activated, changes made to the disk are temporary and will be discarded when the VM is shutdown.
1385 `trans`=`<auto | lba | none>` ;;
1387 Force disk geometry bios translation mode.
1389 `werror`=`<enospc | ignore | report | stop>` ;;
1393 `vmgenid`: `<UUID>` ('default =' `1 (autogenerated)`)::
1395 The VM generation ID (vmgenid) device exposes a 128-bit integer value identifier to the guest OS. This allows to notify the guest operating system when the virtual machine is executed with a different configuration (e.g. snapshot execution or creation from a template). The guest operating system notices the change, and is then able to react as appropriate by marking its copies of distributed databases as dirty, re-initializing its random number generator, etc.
1396 Note that auto-creation only works when done through API/CLI create or update methods, but not when manually editing the config file.
1398 `vmstatestorage`: `<string>` ::
1400 Default storage for VM state volumes/files.
1402 `watchdog`: `[[model=]<i6300esb|ib700>] [,action=<enum>]` ::
1404 Create a virtual hardware watchdog device. Once enabled (by a guest action), the watchdog must be periodically polled by an agent inside the guest or else the watchdog will reset the guest (or execute the respective action specified)
1406 `action`=`<debug | none | pause | poweroff | reset | shutdown>` ;;
1408 The action to perform if after activation the guest fails to poll the watchdog in time.
1410 `model`=`<i6300esb | ib700>` ('default =' `i6300esb`);;
1412 Watchdog type to emulate.