Re: Q: Mirroring - what is the better way

Pablo Sanchez wrote: > > On Nov 17, 7:35am, Peter Tashkoff wrote: > > Subject: Re: Q: Mirroring - what is the better way > > > > The writes in Informix are performed asynchously in parallel. > > What makes you think that the device driver isn't doing the > same? The SCSI bus can handle multiple requests and have > many requests outstanding: command tag queuing. He didn't say it wasn't. > I find it extremely hard to believe that Informix (or any > other vendor s/w) could match the h/w vendor's *own* > engineers. Furthermore you add an additional layer of > software at the *user* level so you end up with less > performance. But hey, if that's okay with you, go for it. > > I'm consistently amazed how many people swallow the "Informix > Line" with no question: > > o what? support needs to dial in to fix my db? ahm, > okay, I'll buy support. > o what? informix knows the hardware better than > HP/Sun/SGI's engineer's? oh, okay... I'm constantly amazed at clients who think they know more about their hardware or software than their suppliers. This often leads to mistakes and lost data. But hey, if that's okay with you, then go for it! ;-) I don't think you actually read past the first line of Peter's post. He was just pointing out his understanding of Informix mirroring, and why it gives HIM a warm fuzzy feeling...... in bed...., er, or something. Cheers, -- Mark. +----------------------------------------------------------+-----------+ |Mark D. Stock - Informix SA http://www.informix.com |//////// /| |mailto:mdstock@informix.com FAQ http://www.iiug.org |///// / //| | +-----------------------------------+//// / ///| | Tel: +27 11 807 0313 |If it's slow, the users complain. |/// / ////| | Fax: +27 11 807 2594 |If it's fast, the users keep quiet.|// / /////| |Cell: +27 83 250 2325 |Therefore, "No news: travels fast"!|/ ////////| +----------------------+-----------------------------------+-----------+