Well the case with Linux is ALWAYS that... you can get ANYTHING done. But it will cost you a ton of hairs on your head.
And if it's not a "well-known" problem domain (e.g. base OS, or Web server, or File-and-Print server, or FTP server....) the Linux or Open-Source solution will be generally crude and lacking in functionality. You can do ANYTHING with Linux.. but the solution you glue together will not be that great, and no self-respecting enterprise will touch your Rube Goldberg contraption for fear it will break and they will have no support and indeterminate downtime. I did an extensive review of the available Linux-HA solutions a few months ago. It's nowhere near the state of the commercial enterprise offerings. For example, LVS only does the Virtual IP thing, it doesn't handle fencing or robust heartbeat or split-brain resolution. These are very important functionality that the open-source community simply can't provide a robust solution for. Linux-HA fencing is "shoot the other node" -- using a controllable UPS. Heartbeat is done over a dedicated ethernet or serial cable. Switch-over times are in the order of SECONDS. This approach is simply unacceptable for enterprise scale applications, where a switch-over time in the MILLISECONDS is often desired. That said, if you're doing simple stateless web load balancing, LVS will work fine. But just get into session replication (which is a very common use case) and you're in for a world of hurt. Anything more complicated... well, good luck! On 10/2/07, Rogelio Serrano <[EMAIL PROTECTED]> wrote: > On 10/1/07, Orlando Andico <[EMAIL PROTECTED]> wrote: > > I would hardly call Linux the perfect OS for this kind of stuff. > > Linux Virtual Server is not bundled out of the box and is not easy to > > deploy. > > > > Windows 2003 Server has a cluster configuration GUI. > > > > Are we telling him to go somewhere else? > > Microsoft might give him a free license you know. _________________________________________________ Philippine Linux Users' Group (PLUG) Mailing List [email protected] (#PLUG @ irc.free.net.ph) Read the Guidelines: http://linux.org.ph/lists Searchable Archives: http://archives.free.net.ph
