Storage

Preparation I used three VM nodes for this home lab project with 8 Cores 8GB Memory and 20GB for the root disk with Jumbo Frame in ClusterNet interface with operating systems Rocky Linux 8.10. Node Hostname vCPU Memory RootDisk PublicNet ClusterNet btnlab01ceph01 8 Core 8GB 20GB 10.78.78.221 10.79.79.221 btnlab01ceph02 8 Core 8GB 20GB 10.78.78.222 10.79.79.222 btnlab01ceph03 8 Core 8GB 20GB 10.78.78.223 10.79.79.223 Then I added 4 hard drives each with a capacity of 50GB used for OSDs. ...

Expand Space without Rebooting VM Current usage disk with lsblk command And here is LVM partition table First step we need grow partition in /dev/sda3, install package growpart first dnf install -y cloud-utils-growpart Then we resize partition with this command growpart /dev/sda 3 See the different before and after, if you don’t use LVM partition scheme just execute resize2fs /dev/sda3 to full fill the partition. pvresize /dev/sda3 pvs vgs ...