En
Es
Description
High availability is already enabled on the cluster node.
Contents
Error 5937, HA is already enabled on nodePossible solutions
- Re-enabling high availability is not supported.
- FAQ
- Virtual machines
- How to reset password on a Windows VM?
- How to change timeout for operations with VMs?
- If the VMs status is “Unavailable”
- If the VMs status is "Suspended"
- If VMs are not created in an LXD cluster
- How to limit VM bandwidth when traffic threshold is exceeded?
- Reinstalling the operating system on a VM fails
- How to create a VM without IP addresses?
- If a VM cannot be deleted
- How to connect a USB device to a VM?
- libguestfs errors
- Virtual machines with connected USB devices do not boot after the hypervisor reboot
- Task registration error when performing VM operations
- Clusters
- How many VMs can be created in a high availability cluster?
- How to change netfilter parameters?
- How to get the list of free IP addresses of a cluster node?
- How to configure a cluster node in OVH data center?
- If the cluster node is unavailable
- "Attempt to migrate guest to the same host" error
- How to prepare the server for a KVM cluster node
- How to disable nested virtualization?
- If the SSH key file on the cluster node is deleted
- LXD
- How to expand the port range for VNC and SPICE?
- Node status: "Issues with libvirt"
- False node inaccessibility in the web interface
- Package update error: dependency conflict between mesa-va-drivers and the devel repository
- Users
- Backups
- Troubleshooting
- "Creating snapshot failed" error
- "Failed to get cgroup backend" error
- Almalinux repositories GPG key validation error
- A standard operating system template is missing
- Backup is under 1 MB in size
- Basic diagnostics
- CPU core number exceeded
- Data not displayed in Swagger
- Diagnosing the network availability of VMs
- Error #3009 Forbidden under administrator account
- Error when deleting dataset: dataset is busy
- Failed to add default bridge
- Guest OS cannot detect virtual machine UUID
- If "Creating snapshot fail" error appears
- If a getrandom error occurs during installation
- If the LDAP server has a self-signed SSL certificate
- Known issues
- Possible issues with migration from VMmanager 5
- Possible issues with Windows OS images
- Problems of increasing CPU and RAM without rebooting the VM
- QEMU Guest Agent cannot be installed on AlmaLinux 10 from ISO
- Registry resource unavailable
- Script terminates with the error “No complete agent response found”
- Statistics not displayed
- Ubuntu 16.04 fails to boot after reinstallation
- Unidentified SCSI device during VMware migration
- VM disk size is not decreasing
- VM fails to start with error "can't add memory device"
- VMs fail to start after enabling dynamic resource changes
- Error "Cannot delete inactive domain with snapshots" when deleting VM
- Error "RuntimeError: Not found os on node" when creating or reinstalling a VM
- IP address addition model not detected when Installing OS from an ISO repository
- VM displays incorrect uptime
- Time synchronization troubleshooting
- Error "Timed out during operation: cannot acquire state change lock" when stopping or starting a VM
- Let's Encrypt certificate cannot be issued
- RAM display issue for Windows Server virtual machines
- Sudo hangs on nodes with a large number of network interfaces
- Error during VM migration "Target domain net card does not match source"
- "Duplicate mount points" error during platform update
- Unable to create a VM without an OS or from a custom ISO image
- After updating to version 2026.02.2 and higher, the platform does not work
- Errors when creating a VM from a NoOS image
- Incorrect VM status after migration
- Virtual machines cannot be created or deleted on a cluster node. Kernel log message: "table full, dropping packet"
- VMmanager license failure: vault data retrieval error
- Unable to start the libvirt pool. "Duplicate hash table key" error
- Error "Time is not synchronized" due to missing chrony or ntp packages
- How-to guides
- How to change the node's main network interface?
- How do I change the IP address of the server with the platform?
- How to restart a frozen LXD container
- How to change the OS repository URL
- How to restore a deleted VM from a backup copy
- How to change a MAC address generation pattern for VM
- How to create your own script repository?
- How to change SSH keys on nodes
- How to migrate IP addresses from IPmanager 6?
- How to set up an IP check before allocation?
- How to add a physical network with a gateway from another subnet?
- How to change the VMmanager license?
- How to sign in to the platform with a key?
- How to check and restore QEMU Guest Agent?
- Disabling high availability
- How to change the network used by Docker?
- How to avoid VM disk corruption in Ceph v.16 (Pacific) or higher?
- How to change the platform's web interface ports?
- How to block access to a particular website
- How to block access to a website (IP address) for all VMs on a node
- How to group VMs by keyword
- How to edit a username for the node
- How to set up the period for automatic deletion of notifications
- How to pin libvirt and QEMU versions on cluster nodes
- How to change IP addressing in a cluster if the platform has been migrated to a VM
- How to increase disk performance in Windows VMs
- How to manage SSH keys on cluster nodes
- Errors
- Errors list
- 0
- 401
- 403
- 404
- 501
- 503
- 504
- 1001
- 1003
- 1011
- 1111
- 1352
- 1354
- 2005
- 3001
- 3003
- 3004
- 3005
- 3008
- 3009
- 3021
- 3023
- 3106
- 5006
- 5007
- 5008
- 5009
- 5010
- 5011
- 5012
- 5013
- 5014
- 5015
- 5016
- 5017
- 5018
- 5019
- 5020
- 5021
- 5022
- 5023
- 5024
- 5025
- 5026
- 5027
- 5028
- 5029
- 5030
- 5031
- 5032
- 5033
- 5034
- 5035
- 5036
- 5037
- 5038
- 5039
- 5040
- 5041
- 5042
- 5043
- 5044
- 5046
- 5047
- 5048
- 5049
- 5050
- 5051
- 5052
- 5053
- 5054
- 5055
- 5056
- 5057
- 5058
- 5059
- 5060
- 5061
- 5062
- 5063
- 5064
- 5065
- 5066
- 5067
- 5068
- 5069
- 5070
- 5071
- 5072
- 5073
- 5074
- 5075
- 5076
- 5077
- 5078
- 5079
- 5080
- 5081
- 5082
- 5083
- 5084
- 5085
- 5111
- 5145
- 5086
- 5087
- 5088
- 5089
- 5115
- 5090
- 5091
- 5092
- 5093
- 5094
- 5095
- 5096
- 5097
- 5098
- 5099
- 5100
- 5101
- 5102
- 5103
- 5104
- 5105
- 5106
- 5107
- 5108
- 5112
- 5113
- 5114
- 5116
- 5117
- 5120
- 5121
- 5123
- 5124
- 5125
- 5126
- 5127
- 5128
- 5129
- 5130
- 5131
- 5132
- 5133
- 5134
- 5135
- 5136
- 5137
- 5138
- 5139
- 5140
- 5141
- 5142
- 5143
- 5144
- 5146
- 5147
- 5148
- 5186
- 5149
- 5151
- 5152
- 5153
- 5154
- 5155
- 5156
- 5157
- 5159
- 5160
- 5161
- 5162
- 5163
- 5164
- 5165
- 5166
- 5167
- 5168
- 5169
- 5170
- 5171
- 5172
- 5173
- 5174
- 5175
- 5176
- 5177
- 5178
- 5179
- 5180
- 5181
- 5182
- 5183
- 5184
- 5185
- 5187
- 5189
- 5190
- 5191
- 5192
- 5193
- 5194
- 5195
- 5196
- 5197
- 5198
- 5199
- 5200
- 5201
- 5202
- 5203
- 5205
- 5206
- 5207
- 5209
- 5210
- 5211
- 5212
- 5213
- 5214
- 5215
- 5216
- 5217
- 5218
- 5219
- 5220
- 5222
- 5223
- 5224
- 5225
- 5226
- 5227
- 5228
- 5229
- 5230
- 5231
- 5232
- 5233
- 5236
- 5237
- 5317
- 5238
- 5239
- 5240
- 5241
- 5242
- 5243
- 5244
- 5245
- 5246
- 5247
- 5248
- 5334
- 5249
- 5250
- 5251
- 5252
- 5253
- 5254
- 5255
- 5256
- 5257
- 5258
- 5259
- 5260
- 5261
- 5262
- 5263
- 5264
- 5265
- 5266
- 5267
- 5268
- 5269
- 5270
- 5271
- 5272
- 5273
- 5275
- 5276
- 5277
- 5278
- 5279
- 5280
- 5299
- 5300
- 5301
- 5302
- 5303
- 5305
- 5306
- 5307
- 5308
- 5309
- 5310
- 5312
- 5313
- 5314
- 5315
- 5316
- 5318
- 5319
- 5320
- 5401
- 5321
- 5402
- 5322
- 5324
- 5325
- 5326
- 5327
- 5330
- 5331
- 5332
- 5333
- 5337
- 5338
- 5339
- 5601
- 5341
- 5342
- 5343
- 5344
- 5345
- 5349
- 5705
- 5350
- 5352
- 5353
- 5354
- 5355
- 5356
- 5357
- 5359
- 5360
- 5361
- 5362
- 5363
- 5364
- 5365
- 5366
- 5367
- 5368
- 5369
- 5370
- 5371
- 5372
- 5373
- 5374
- 5375
- 5376
- 5377
- 5378
- 5379
- 5380
- 5381
- 5382
- 5383
- 5384
- 5385
- 5386
- 5387
- 5388
- 5389
- 5390
- 5391
- 5392
- 5393
- 5394
- 5946
- 5395
- 5396
- 5397
- 5398
- 5399
- 5400
- 5957
- 5403
- 5404
- 5405
- 5406
- 5961
- 5408
- 5409
- 5410
- 5411
- 5412
- 5413
- 5416
- 5501
- 5502
- 5504
- 5602
- 5700
- 5984
- 5701
- 5702
- 5703
- 5987
- 5706
- 5707
- 5708
- 5709
- 5998
- 5710
- 5801
- 5902
- 5903
- 5904
- 5905
- 5906
- 5907
- 5908
- 5909
- 5910
- 5911
- 5912
- 5913
- 5914
- 5915
- 5916
- 5917
- 5918
- 5919
- 5920
- 5921
- 5922
- 5923
- 5924
- 5925
- 5926
- 5927
- 5928
- 5929
- 5930
- 5931
- 5932
- 5933
- 5934
- 5935
- 5936
- 5937
- 5938
- 5939
- 5940
- 5941
- 5942
- 5943
- 5944
- 5945
- 5947
- 5948
- 6070
- 5949
- 5950
- 5951
- 5952
- 5953
- 5954
- 5955
- 5956
- 5958
- 5959
- 5960
- 5962
- 5963
- 5964
- 5966
- 5969
- 5970
- 5971
- 5972
- 5973
- 5974
- 5975
- 5976
- 5977
- 5978
- 5979
- 5980
- 5981
- 5982
- 5983
- 5985
- 5986
- 5988
- 5989
- 5990
- 5991
- 5992
- 5993
- 5994
- 5995
- 5997
- 5999
- 6000
- 6001
- 6002
- 6003
- 6004
- 6005
- 6007
- 6008
- 6009
- 6010
- 6011
- 6012
- 6013
- 6014
- 6015
- 6016
- 6017
- 6018
- 6019
- 6020
- 6021
- 6022
- 6023
- 6024
- 6025
- 6026
- 6027
- 6028
- 6029
- 6030
- 6031
- 6032
- 6033
- 6034
- 6035
- 6036
- 6037
- 6038
- 6039
- 6041
- 6050
- 6051
- 6052
- 6053
- 6054
- 6055
- 6056
- 6057
- 6058
- 6059
- 6060
- 6061
- 6062
- 6063
- 6064
- 6065
- 6066
- 6067
- 6068
- 6069
- 6071
- 6072
- 6073
- 6074
- 6075
- 6076
- 6077
- 6080
- 6081
- 6082
- 6083
- 6084
- 6085
- 6086
- 6087
- 6100
- 6101
- 6102
- 6103
- 6104
- 6105
- 6106
- 6107
- 6108
- 6109
- 6110
- 6111
- 6112
- 6113
- 6114
- 6115
- 6116
- 6118
- 6119
- 6120
- 6121
- 6122
- 6123
- 6124
- 6125
- 6126
- 6127
- 6128
- 6129
- 6130
- 6131
- 6132
- 6133
- 6134
- 6135
- 6136
- 6137
- 6138
- 6139
- 6140
- 6141
- 6142
- 6143
- 6144
- 6145
- 6146
- 6147
- 6148
- 6149
- 6150
- 6151
- 6156
- 6157
- 6158
- 6159
- 6160
- 6162
- 7000
- 666009
Focus mode