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--- myhelp:proxmox [2025/07/29 12:04] – ulrich
+++ myhelp:proxmox [2025/08/01 08:44] (current) – [OT takeaways from the training] ulrich
@@ Line 1: / Line 1: @@
-====== OT takeaways from the training ======
+====== Other notes ======
-https://www.turnkeylinux.org/ -> Turnkey applications based on LXC
+==== 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.
-====== Other notes ======
 ==== Windows VirtIO drivers ====
 The Windows VirtIO drivers can be found at:
@@ Line 9: / Line 29: @@
 The version to be chosen depends on Windows installation. Older Windows versions
 need older driver packages.
+==== Windows change disk type from SATA to SCSI ====
+  * Before you can change the disk type, the drivers must be installed.
+  * Add a small SCSI disk and reboot the server.
+  * Check if there is a triangle in the device manager
+  * shutdown the server
+  * detach and remove the small disk
+  * detach your OS disk
+  * add your OS disk and change the device type to SCSI
+  * also change the boot order
+Now it should work, that you can boot from your disk attached as SCSI disk. SCSI is normally faster then VirtIO for Windows OS.
 ==== Enter a LXC container from the Proxmox shell: ====
@@ Line 28: / 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 ======
+https://www.turnkeylinux.org/ -> Turnkey applications based on LXC
+https://www.olivetin.app/ -> Small and simple automater
+https://cloudinit.readthedocs.io/en/latest/reference/examples.html -> Cloud init examples
+https://alerta.io/ -> Monitoring - Notification