Server Fault Stack Exchange
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Questions tagged [fault-tolerance]

89 questions
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Fault-tolerant KVM hosts

I'm going to create a simple virtual hosts infrastructure using QEMU+KVM. It is expected to be very simple, without clouds or any other cool things. Right now the only requirement is the fault-tolerance for data (hosts' disk images online backup).…
Stan
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Is the Blackberry "Move Server" command a reliable way to achieve redundancy?

BES supports moving more than one user in a domain to an alternate server as shown in the image below. Does this mean I could achieve some level of redundancy by moving users from one BES server to another? Is this a reliable approach with no…
makerofthings7
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Round robin DNS and fault tolerance (web service, windows 2008)?

What "Round robin DNS" services do you know/use? I am interesting in free and commercial variants. I have domain and a few ip addresses from each server. But i think that some servers (Windows Sever 2008 R2) can be down from time to time. I found…
Edward83
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Sharepoint 2010 Foundation Fault Tolerance

Assuming a completely reliable SQL Server infrastructure (i.e. SQL Server is not part of the question), what is the simplest and cheapest (i.e. minimum number of servers) method of making a fault-tolerant SharePoint 2010 Foundation installation? The…
Tim Long
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Using Openfiler inside a virtualmachine and VmWare Fault Tolerance

currently I have 2 servers with Fault Tolerance working with another server with openfiler as a iSCSI server (looks like without that Fault Tolerance does not work). I would like to remove that server and put the openfiler distribution as another…
Ignacio Soler Garcia
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High availability for databases (DRBD + GFS)?

Does it work to have like an MySQL (or any other relational database) on the GFS (with DRBD) and have multiple nodes reading and writing to it? Is that the "best" way of providing a HA database/application setup if so? Is RHEL (cluster suite) a good…
EvanAlm
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Can I setup DNS in such a way that if one IP address fails, it uses the other IP?

I intend to create a SaaS with two Load Balancers. If one load balancer goes down, 'MySaaSApp.com' will point to the other load balancer. Can such be accomplished through DNS Records alone? Thanks!
user1034912
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How to choose right AWS EC2 instance for serving MySQL

Recently we have noticed that our application has some errors related to the MySQL load. There are some basic queries on large database (approximately 32 GB) which takes longer time than expected. For serving the MySQL server we use m6d.xlarge…
Aren Hovsepyan
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Print Server Redundancy in VMware ESXi

I'm having a challenge figuring out the best way to get the highest possible uptime on my 2 print servers. The best solution would be if one of the servers function as my primary print server, and the other would function as secondary, and as soon…
Cobao
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Never miss a HTTP post

I have a webservice that have a couple of "machine" clients connected to it that does HTTP post with data once in a while. The nature of the service is that I cant allow the service to loose a single incomming request. However I do experience that…
DavKa
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What software should I use for fault tolerence/high availability for 2 servers

What are some of the industry standard enterprise software to allow fail-over or swap-over between 2 servers? E.g., if 1 server goes down(due to connection or power, etc), the other kicks in either immediately, or after a certain time of like a few…
Null Reference
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How to create a group of servers listening on the same IP-address, allowing failover/takeover?

I'd like to deploy a web application in a robust manner. The application itself is written using Elixir, which runs on top of Erlang/OTP, meaning that the application can be deployed on different nodes which can internally manage failover/takeover…
Qqwy
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Is it possible to use planet scale load-balanced virtulisation?

there are more and more implementations of distributed-virtualisation. A common one is Microsoft SCVMM. Currently, such things are kept inside LANs, and a san or fiber-channel system is used for fault-tolerance (It often store VM's RAM with realtime…
user2284570
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how to configure ISCSI fault tolerance in ubuntu 12.04

how to configure ISCSI fault tolerance in ubuntu 12.04 Anyone has a tutorial or steps to?! thanks in advance knowing that initiator and server are ubuntu
Maythux
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