Storage
Each Edge server has a single Storage Pool that holds everything: the Gallium operating system, all hypervisor metadata, and every virtual machine disk. This Storage Pool is created during the initial setup of the Hypervisor.
Pool Layouts
When you create the pool you choose one of two layouts:
Mirror (Recommended): The OS and all data are written to both disks. If one disk fails, the server keeps running and stays bootable on the survivor. Mirror mode requires two disks of matching size; if they differ, the mirror is limited to the smaller disk and the extra capacity is wasted.
Single Disk: One disk with no redundancy. Suitable for evaluation and testing only.
Hardware RAID
Hardware RAID is not recommended, because a RAID controller hides the individual disks that Gallium's own redundancy is designed to manage. If a controller is unavoidable, present a single logical volume to Gallium and choose Single Disk mode, leaving redundancy to the controller.
On a hardware RAID volume, per-disk health monitoring and failure alerts are unavailable. Monitor the physical disks through your server's management interface (for example iLO or iDRAC) instead.
Intel RST
Intel Rapid Storage Technology (RST) is not supported. If your motherboard's BIOS/UEFI is set to RST or RAID mode, storage devices may not be detected during installation. You must switch the SATA/NVMe controller mode to AHCI in your BIOS/UEFI settings before installing Gallium.