On-premise vms run on xen virtualization servers. There are currently 2 servers in the ecosystems with their speicifcation below:
Here describe specifications for xen3 (processor, disk, memory, ip address,os version)
Here describe the specifications for phenom3 (processor,disk,memory, ip address, os version)
There are main 2 tools for managing xen guests.
xl and virsh
- creating a guest vm
- start
- stop
| virsh start <vm-name> | start a guest vm |
| virsh stop <vm-name> | |
| virsh console <vm-name> | connect to the virtual console of a vm |
| virt-clone |
clone a vm virt-clone --original ims-vm --name ponticelli-vm --file /dev/vg_raid1/ponticelli_root --check path_exists=off |
| virt-install |
create a vm from an image using a raw partition |
Xen hosts manage storage, usually in a raid configuration, using Logical Volume Manager or LVM.
In X-Act's case, the two servers have 2 x 2 terrabyte SSD drives in a RAID 1 configuration.
LVM utilitiees are used to create, manage LVM partitions, which are then used by the guest VMs.
| lvcreate | used to create logical partiions |
| lvextend | extend a partition |
| lvremove | |