I've been looking at OpenShift Origin documentation and tutorials for the past two days and I have a few questions if you guys can help me;
For Docker’s thin provisioning configuration for production environments using direct-lvm the most common approach (not to say all I encountered) is to use a separate physical drive setup with LVM for the volume group. Is there a problem with using one partitioned hard drive shared between the root system? This comes as some of the machines we use (which are rented) come with large hard drives on the initial configuration, and it’s easier to partition one big drive and mirror it than doing this with several, no? Are there disadvantages?
Two machines have been configured with initial disk setup, one has boot + root and swap, where root and swap sit on LVM on a volume group /dev/sda2 and /dev/sda3 is the docker volume group, and the other has boot, root and swap as separate devices and only the remaining space is a volume group. Are both approaches correct or are there considerations to have in mind regarding these setups?