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--- myhelp:proxmox [2025/07/31 08:31] – ulrich
+++ myhelp:proxmox [2025/08/01 08:44] (current) – [OT takeaways from the training] ulrich
@@ Line 1: / Line 1: @@
 ====== Other notes ======
-===== Ceph =====
-Install Ceph per node.
+==== Enable/Disable Maintence Mode ====
+<code>
+#Enable
+ha-manager crm-command node-maintenance enable myServer
+#Disable
+ha-manager crm-command node-maintenance enable myServer
+</code>
+==== Create empty (dummy) VMs ====
+<code>
+qm create <new ID>
+Example:
+qm create 200
+</code>
+==== List VMs ====
+<code>
+qm list
+</code>
+==== Corosync  ====
+Very important to have a low latency connection. A bond would add 100ms per failure, so it would work. It is better to have two separate cluster links.
 ==== Windows VirtIO drivers ====
@@ Line 40: / Line 61: @@
 {{:myhelp:change_vm_id_range.png?600|}}
 Datacenter -> Options -> Next Free VMID Range
+===== Ceph =====
+Install Ceph per node.
+==== Usage per disk and much more info ====
+<code>ceph osd  df tree</code>
+==== Usage of Ceph  ====
+<code>ceph df</code>
+==== OSD create on CLI  ====
+<code>pveceph osd create /dev/sdX</code>
 ====== OT takeaways from the training ======
@@ Line 48: / Line 80: @@
 https://cloudinit.readthedocs.io/en/latest/reference/examples.html -> Cloud init examples
+https://alerta.io/ -> Monitoring - Notification