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Thread: How to provide Cloud Hosting?
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04-19-2011, 04:43 PM #26WHT Addict
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███ Mike Kauspedas - GearHost
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04-19-2011, 05:13 PM #27Web Hosting Guru
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There are different kinds of users who will run into different types of problems. If you're competent and running a large organization's IT department, you aren't using CPannel, and making noob mistakes, but if your website goes down for any reason you are in deep ****, which is where the market for scalable and extremely reliable hosting platforms comes in. 100% uptime (no, it's not impossible, it's just very difficult) is something people will pay good money for.
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04-19-2011, 06:06 PM #28Web Hosting Evangelist
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I agree that "scalable and extremely reliable hosting" is being sought. Most "cloud" hosting offerings today are simply servers built as vms that have cPanel or other software installed to provide shared hosting - the end user has no more flexibility in scaling than if it were on legacy hardware.
Yes, 100% uptime is possible and if hardware redundancy were the only thing that effected uptime, cloud hosting as provided today could be the answer. Cloud hosting as provided today still suffers from the same programming issues that have historically caused downtime plus a few new ones.
Hardware failure has been the cause of a small percentage of issues.
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04-20-2011, 12:51 AM #29New Member
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100% uptime is theoretically impossible, unless you have a finite lifespan for the server which you can measure in retrospect. Even so, just one lost TCP packet means you no longer have 100% uptime. Maybe you mean 99.99999% uptime, but that is entirely different! Sorry to nitpick, but it's misleading when someone states that 100% reliability is an option! Sure, it sounds better when selling to management, but legally you can set yourself up for a world of hurt.
Last edited by duckribs; 04-20-2011 at 12:57 AM.
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04-20-2011, 04:09 AM #30New Member
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Hi all
Hey all, Fair-minded thought I would respond Hi and thanks for allowing me to till to the forum!
Nick
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04-20-2011, 12:27 PM #31Web Hosting Guru
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Do you recall the last time the DNS system went down even for a second? I'd say they've achieved 100% uptime.
A single lost packet does not equal downtime. Instant failover to more than one system, and preferably at least one system in a different physical location can often do the trick. Then if you have to do maintenance on one system, the fully redundant backup takes over while you shut down the primary system. The more fully redundant backups you have the better this configuration works. You can do the maintenance on the backup either before or after you've done it on the primary server. As the backup will need all the capabilities of the primary system this at least doubles your cost. The trick to achieving 100% uptime is eliminating any single point of failure for the system.
Ever heard of an SLA? A good one? The harsher the penalties for downtime the more your clients are willing to pay you to not have their system go down. Of course for that to be economical, you'd have to be skilled enough not to have client systems go down.
100% uptime won't sound so good to management when you give them a cost estimate. The real question is "is a .001% increase in uptime worth the cost?" And for the vast majority of people the answer is no. Nothing is sure in this world - the sun could not come up tomorrow. Would your 100% uptime system survive WWIII? Probably not, but I'm not counting highly unlikely circumstances far outside your control.
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04-20-2011, 01:39 PM #32Junior Guru Wannabe
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Pr0jects Web Services
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04-20-2011, 01:52 PM #33Web Hosting Master
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what happens when your entire SAN goes offline (yes, it does happen) or the VMotion server crashes (it runs Windows, right?) / looses power (expired UPS battery blows up / power cord accidentally pulled out / office loose power / circuit breaker blows) or looses connectivity to the VMWare servers (virus / network card failure / network cable unplugged / etc)? Do you simply reconnect to the VMWare server and it carries on?
How about if the switch between the 2 VMWare server & SAN blows a fuse / port / power socket?
Or, the new server has a faulty LAN, which you only pickup after the VMotion is complete and the VM now keeps crashing? But you can't move it back since the NIC suddenly drops all network connectivitySouth African Web Hosting - http://www.SoftDux.co.za || SA WebHostingTalk - http://www.webhostingtalk.co.za
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04-20-2011, 04:24 PM #34Web Hosting Guru
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04-20-2011, 04:33 PM #35Web Hosting Master
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South African Web Hosting - http://www.SoftDux.co.za || SA WebHostingTalk - http://www.webhostingtalk.co.za
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04-20-2011, 06:39 PM #36Web Hosting Guru
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04-21-2011, 09:00 PM #37Disabled
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you may get the cloud from cloud provider like onapp and amazon.
you need to have 2 server , one is the complete running server and another server is the backup one which is in standby mode to support the first server when something happen to it.
It costly to get cloud hosting provider but i believe that it will replace all other hosting one day because it do have lot of benefits.
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04-26-2011, 01:34 PM #38New Member
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I have heard that Cloud Computing, Cloud Hosting & Online Storage by Rackspace Hosting. Mosso is now the Rackspace Cloud. is very good cloud host
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05-02-2011, 02:27 AM #39Web Hosting Guru
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05-02-2011, 07:03 PM #40Web Hosting Guru
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If you are new to cloud, you first have to decide if you want to rent a cloud or buy the hardware necessary to build one, at the very basic you will need the following:
2x servers for hyper visors
1x servers for control panel
2x servers for making SANs raid 10 in HA setup
1x Gigabit switch with jumbo frames / layer 2 /vlan█ Offshore Hosting & High Privacy in Panama
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05-02-2011, 07:06 PM #41Web Hosting Master
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http://blog.backblaze.com/2009/09/01...cloud-storage/ interesting link to look at -- on how to build a cheap cloud --
i think the best way to go is to use onAPP - the future cpanel for us hostersRebel Networks
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Please Visit us @ www.rebelnetworks.com
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05-03-2011, 12:20 AM #42Web Hosting Master
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█ Brent Presley - brent@innoscale.net
█ Innovative Scaling Technologies Inc. - Enterprise Cloud Hosting and Support
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05-03-2011, 01:20 AM #43Web Hosting Guru
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I don't think you understand the meaning of the word "cloud" then. But cloud is just any obnoxious marketing term anyway, and "cloud in a box" is even worse.
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05-03-2011, 01:27 AM #44Web Hosting Master
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RIGHT.
I understand cloud far better than you. If you want TRUE HA, with TRUE redundancy, and TRUE scalability, you CAN do that with two servers and AppLogic.
Is it the BIGGEST and most complex cloud designed? No. But if one of the two servers fails, the other continues where the first left off with ZERO down time.
It's a TINY cloud, but it is a cloud. And IIRC the question was what are the minimum requirements for deploying a cloud. But what the heck do I know. I just deploy these things (and much larger), daily.█ Brent Presley - brent@innoscale.net
█ Innovative Scaling Technologies Inc. - Enterprise Cloud Hosting and Support
█ 24/7 Dedicated Support, Call us @ 1-888-722-8515
█ www.innoscale.net - Ashburn - Dallas - Seattle - Santa Clara - Chicago - Amsterdam
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05-03-2011, 09:51 PM #45Web Hosting Master
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At that point it sounds like DRBD. Except...
Note that for grids with exactly 2 servers, AppLogic requires a 3rd reference server in order to properly support the grid controller HA. By default when a 2.7+ grid is installed or upgraded, the AppLogic installer assigns the ALD server as the reference server for the grid. This setting may be overwritten by the maintainer, see the AppLogic installer documentation about the reference server for more details. The same ALD server may be used as a reference server for all grids on the same backbone.
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05-03-2011, 09:57 PM #46Web Hosting Master
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We have not had this issue on 2.9.9. I can assign the primary server as the grid controller, and the HA server as the backup grid controller. We have never brought our ALDO server into the mix for any of our grids. And we have had customers start at 2 servers with plans to scale up after their business grows.
█ Brent Presley - brent@innoscale.net
█ Innovative Scaling Technologies Inc. - Enterprise Cloud Hosting and Support
█ 24/7 Dedicated Support, Call us @ 1-888-722-8515
█ www.innoscale.net - Ashburn - Dallas - Seattle - Santa Clara - Chicago - Amsterdam
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