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How can I catch in logs SQL server failover switched to other node

Hi I want to be notified if SQL Server makes a failover and switches active nodes either if someone switched it or there is a real problem. Our monitoring tool can read windows event logs but I don't ...
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37 views

Internet failover strategy while hosting services with a staticip

Given you have two networks with statics ips: network A.) 66.xxx.xxx.9 (to reach this network DNS entry is myservice.mydomain.com) and network B.) 66.xxx.xxx.29 ((to reach this network DNS entry ...
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SQL Server Witness Server Alternative

I have the setup below: 3 Database Servers 1 DR Database Server 1 Domain Controller 1 DR Domain Controller Currently I have the DR domain controller acting as the mirroring witness for the 3 ...
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19 views

Building failsafe system

As an assignment I have to realize failsafe webserver using Virtual machine. I have been trying it using a separate java program on host to monitor heartbeat of the vm and redirecting the http ...
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3answers
111 views

Why is UPS technology unreliable? [closed]

Following the UPS issue at SO today I recall my experiences with UPS (uninteruptable power supply) systems in the work place. Typically we would arrive at work in the morning and find all systems ...
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7k views

Failover two IP addresses and one DNS record

My mail server has two WAN interfaces and I need to set up one DNS A record for my Exchange clients. In case of connection failure of one interface I wish to use the other interface, but how to set up ...
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138 views

Can a consumer-level (i.e. cheap) UPS trigger a custom script on power failure on Linux?

I am essentially trying to build is a poor mans server failover solution. The non-profit organization I am part of is planning to host several web applications. In order to save on hosting costs we ...
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1answer
827 views

CentOS DHCP server failover won't give out leases

I have followed this tutorial: http://www.madboa.com/geek/dhcp-failover/ However, I can not seem to get a lease at my windows client. I have set both servers (CentOS 6.2) in virtual machines, ...
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70 views

Can NAT capable modem/router be linked for failover?

There are a total of 7 systems on the network. The network has evolved from two small shops (3-4 computers each) to a single one with a sum total of 7 systems. Historically there were two ISP (which ...
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1answer
423 views

Software load balancing fail-over vs hardware [closed]

Please correct me, but my understanding is that with software load balancing a service must be run on each server while there is one DS that notifies the other servers that a server has gone down and ...
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69 views

ADSL Connections

Can you have two ADSL connections on a single phone line? Or by law of IT, do two Broadband connections require two separate phone lines and BT master sockets?