On 21/02/07, Ira Abramov <[EMAIL PROTECTED]> wrote:
Quoting guy keren, from the post of Wed, 21 Feb: > > what? what???? a mirror is as _slow_ as the _slower_ disk. an I/O > request to the mirror, gets a response only after its clones were > written into both legs of the mirror - not as soon as one was written. I once did some benchmarks for a client and showed that even a mirror of three disks (yes, every sector written 3 times) the write time penelty was extremely small, however reading speed jumped practically in a
Yes but these were all practically identical disks - Guy's response was about my idea to mirror a RAM disk with a regular magnetic media disk, which would mean that that this volume will be as slow as the magnetic media, so loosing the advantage of investing in a RAM disk. Cheers, --Amos
