Activation of maintenance mode in Proxmox VE

If you want to maintain Proxmox VE hosts, the maintenance mode of individual nodes can be activated. This option only refers to systems that are operated in a Proxmox VE cluster.

When should you activate maintenance mode?

The maintenance mode can be useful for the following exercises:

• Updates: the PVE host contains new updates via Web-UI
• Hardware maintenance: the PVE host must be shut down and hardware must be changed if necessary
• Debugging & Analysis: the PVE host is analyzed on software level and should not use highly available resources

Advantages for manual migration via Bulk-Migrate

• If you activate maintenance mode, resources are moved to other hosts
• After deactivating maintenance mode, the previously moved resources are automatically migrated back to the previous host
  • this does not happen during the bulk migration. You need to know for yourself which resources you want to move back to the now maintained host afterwards.

Activation of maintenance mode

ha-manager crm-command node-maintenance enable pve01

Deactivation of maintenance mode

ha-manager crm-command node-maintenance disable pve01

Author: Jonas Sterr Jonas Sterr has been working for Thomas-Krenn for several years. Originally employed as a trainee in technical support and then in hosting (formerly Filoo), Mr. Sterr now mainly deals with the topics of storage (SDS / Huawei / Netapp), virtualization (VMware, Proxmox, HyperV) and network (switches, firewalls) in product management at Thomas-Krenn.AG in Freyung.

Translator: Alina Ranzinger Alina has been working at Thomas-Krenn.AG since 2024. After her training as multilingual business assistant, she got her job as assistant of the Product Management and is responsible for the translation of texts and for the organisation of the department.