Ed Heron Ed@heron-ent.com wrote: Yes, in a test environment, I am mirroring a Logical Volume with a RAM disk to increase the perceived speed of the disk. I'm expecting to convert a live guest to this type of setup, this weekend.
I was asking 2 questions. 1. Should I expect a significant increase in speed in a real world environment? With enough RAM, a good caching system will eventually do a similar function. This is almost like pre-loading a cache. 2. Should I document the process for others? I'm using CentOS 5 now, which is on it's way out, but I would update the documentation to include CentOS 7 when I upgrade my servers.
See this is where I was confused. Would not the LVM mirror have to sync all the time with the disk anyways?
Is there something about LVM mirroring that can handle disks of different speeds?