OK, I was just wondering if there is a host that offer 100% uptime? is that possible at all?

Like, for example, CNN is up and fast all the time. Or other portals, too. How do they do that?

Server clustering, I'd imagine.

Well they say it's possible. They will also charge you an arm and a leg for it... but can you guarantee against every single failure that's likely to take place? I don't think anyone can actually offer a 100% SLA... just my opinion

Unless, you are google, Yahoo, MS, AOL and one of the big shots who can afford server at 100's od data centers around the world, I say it is not possible.

inflow and affordablecolo do it

In a real world situation and if you were to be very strict on saying 100%, then it'll be no, you can't... no one can predict what will happen in the future and anything can happen. But ruling out natural disasters, then I guess yes... as long as you have the money for it. But it'll be very costly.

Alan

Is it possible to live forever ?

Probably not. The thing is that computer hardware have a maximum lifespan and sooner or later, things would live up to its maximum and start coughing up. One day things would go down.

There are just too many factors and components involved in putting a web server live and any of the components be it the actual hardware, datacenter or bandwidth provider or anything else can and might be able to bring the server down.

No I doubt that is 100% uptime forever. It is however possible to minimize the downtime. That's not to say that you should expect some downtime each month or day. It is highly possible to go on years on end without downtime but some day it might come down.

Originally posted by Artashes
Like, for example, CNN is up and fast all the time. Or other portals, too. How do they do that?

http://www.computerworld.com/managementtopics/ebusiness/story/0,10801,63729,00.html

'nouf said :cool:

Nothing to beat some Defence websites and University Websites. On my dial up it loads as fast as lightening. Dont recall the URLs now but it was something we all should aspire for one day.

Other than that try VIAGRAHOSTING.COM for 100% uptime:D

Originally posted by jw
inflow and affordablecolo do it

ok went on thier site, nada stated anywhere, but anyway, to have network uptime of 100% is alot cheaper than 100% server uptime .... it's in the details ... let me explain.

for network up time all you need is 2 points of entry for the fiber, call them the north point and the south point. then all you need is to set up a router for each one, then join them to the bgp4 routers then its distribution from there to the datacenter.

so you are looking at 2 holes in the building outside walls, the first set of routers, then the nest set. so maybe 70K in routers to have something decent.

now server uptime of 100% requires the above x2 and the equipment to be n+1 so you have 2 mirror datacenters and equipment set up's.

still that does not guarentee that you will get the web pages when you go to the site. for that you need to make sure you have set up high avalibility servers.

last i heard was that CNN was 99.42 on http avalibility, e-bay and amazon were in the 99.6 area. basically it all depends on the money invested and where invested.

Mike

I know of several networking companies that offer a 100% uptime guarantee (this is for large corporate networks, not web servers in datacentrs - but it still applies). If the network or servers went down they had to have techs working on it within so many minutes... and if it wasn't fixed and up within so much time they had to pay the company for their downtime.

What an idea!

Of course, you pay an arm and a leg for reliability like that. You could cluster servers with hot-swappable SCSI drives running RAID... and have redundant connections...

But imagine how much you'd pay... $10,000/month? $25,000/month?

Originally posted by ADEhost


basically it all depends on the money invested and where invested.

Mike

O....i see. That is why the netfirms.com shut down once a week, not every day.:D

Originally posted by Artashes
OK, I was just wondering if there is a host that offer 100% uptime? is that possible at all?

Like, for example, CNN is up and fast all the time. Or other portals, too. How do they do that?

If a normal webhost does offer 100%, its BS.
Nobody is perfect.
Also define uptime. Does it include:
- "Not our fault, its the fiber" ?
- "We planned maintenance" ?
The key is how is it measured.

you can only get 100% uptime from the same people that offer unlimited hard drives and unlimited bandwidth :)


Steve

Originally posted by wangzh


O....i see. That is why the netfirms.com shut down once a week, not every day.:D

OK I do have a sense of humor, but this is confusing. Netfirms.com is not hosted with Adehost.com nor is it affiliated to adehost.com firm in any way shape or form. so what is the joke ? if it shut down every day that means very little money invested, every week maybe a bit more money....

but I'm trying to get the joke.

Mike
Side note :Also we host asia sites and like that traffic.

Originally posted by RajanUrs
Other than that try VIAGRAHOSTING.COM for 100% uptime:D
:D :emlaugh:

Hello,

I believe 100% *web-content* up-time is kinda possible. Not including the mail servers, FTP servers and etc.

Haven't read all the posts... But nothing is 100%, its literlly impossible... 99.9999% is the closest you can come.

Ever hear the saying "Nobodys perfect" ? Well that fits here too :stickout:

Originally posted by CDHost
I know of several networking companies that offer a 100% uptime guarantee If the network or servers went down they had to have techs working on it within so many minutes... and if it wasn't fixed and up within so much time they had to pay the company for their downtime.

*scratches head* :confused:

If it is down for one minute then it isn't 100% up is it mate? :D

Yeah, I don't know all the details of the contract... just know it was pretty strict.

Well I believe it is possible to have 100% uptime. But only if you access it via http://127.0.0.1 within the server. Some people may claim some sites not accessible because their own ISP does not resolve the proper DNS...etc. Hence the downtime. Only referring to high profile sites...

hehe, NomonthlyFees, whom I am trying to get away from right now used to claim (when i signed up) 100% uptime, now, they took it down, and EVERY SINGLE DOMAIN hosted by them is down for a few hours ONCE EVERY SINGLE WEEK.


I hate those jerks, but there does not seem to be any decent alternatives..

btw: I signed up for them, because they promised my ASP.NET/window hosting within 3 months.. they never made due on their promise... now im $200 in the hole. .lol

Originally posted by Shannara
hehe, NomonthlyFees,

btw: I signed up for them, because they promised my ASP.NET/window hosting within 3 months.. they never made due on their promise... now im $200 in the hole. .lol

gee I would hate to say it but your were ripped

Mike

When a company says "100% UPTIME" Couldn't this mean that they will give you compensation (Refund) when the uptime goes below that. Like if a company says 99.5% Uptime, they won't start giving compensation until they hit anywhere below 99.5%.

I'd have to say it is possible. If your server is connected to several different telco's which provide your connectivity. My servers run on UUnet AT&T Global Crossing and a few others. If AT&T drops for some reason I still have Global Crossing and UUnet. If UUnet and AT&T drops I still have global crossing and those little backups.

Also I have multiple servers in multiple data centers with similiar connectivity. Servers in all different cities.

I'd say I have 100% uptime. Wouldn't you?

Originally posted by wowewo
I'd have to say it is possible. If your server is connected to several different telco's which provide your connectivity. My servers run on UUnet AT&T Global Crossing and a few others. If AT&T drops for some reason I still have Global Crossing and UUnet. If UUnet and AT&T drops I still have global crossing and those little backups.

Also I have multiple servers in multiple data centers with similiar connectivity. Servers in all different cities.

I'd say I have 100% uptime. Wouldn't you?

ok, based on what you are saying, yes, at any given time you have a server up so you have an uptime of 100%, given if someone then ask you to define it and they have any knowledge of uptime, they will wet thier pants with laughter.

That's network uptime, not server uptime. :)

Mirroring in different countries with each datacenter offering 100% network uptime...

:D

I think it's possible to have 100% Uptime if the the servers are very closely monitored, and if you use load balancing.

see what alot of people here are not thinking is of the cost. 99.999 is already huge cost ( that's server and http uptime but not high avalibility ) projects for 5 nines run 380k right off the bat, your looking at 8/10th of a second per day max down time, full redundant systems.

I get request for mssql 99.999 all the time and when I tell them the cost, they look at me and wonder why they need it. Here is the pitch. you need 99.99 if your cost per minute of down time exceeds $1000 per minute. 99.999 if it's greater than 3000 per minute. 99.9999 if 1 hour shuts off the plant.

I know one geek company that makes 100% uptime nt platforms for running databases. cost a cool 450K. but all that equipment is to make 1 server never crash, or to warn with enough time that the server will crash at a specific time. but again this does not even scale, it's single application use only.

Mike

There is no such thing as 100%... What if the world explodes? What if they get bombed? What if the power for the entire world goes out? never know :confused:

I guess no one will care if their servers are up or not if that happens. :stickout:

Chances our network is going to have 0 problems for the next 100 years - 0% chance

Chance our customers get refunded should we have network diff. - 100%

We as with any network may experience problems from time to time, we want our customers to know that we know that downtime effects their bottom line, so we insure their downtime effects our bottomline! Its our job to worry about the network, its our clients job to take care of their clients! We expect for our clients to expect 100% uptime no less.