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If you are using a hybrid approach (assuming dedicated + EC2), you have to have the ops system in place to deal with the dedicated environment AND the EC2 envir

by jd007 13y ago

If you are using a hybrid approach (assuming dedicated + EC2), you have to have the ops system in place to deal with the dedicated environment AND the EC2 environment, which is why devops cost will be higher. Of course if you only deal with dedicated hardware your devops cost could drop. Inter-datacenter network issues are less of a problem when your datacenters are from the same provider, because they are responsible for making sure the connection is good. Plus, when problems do occur, you can troubleshoot fairly easily (when I had the routing problem with dedicated provider + EC2, I had to bounce back and forth with the network support for both a few times before one of them admitted the routing issue with the upstream network provider) as you are dealing with a single company. I understand the hybrid solutions that other providers such as softlayer offers, but I was mostly addressing the suggestion of using dedicated + EC2 in the original article.

vidarh 13y ago
> you have to have the ops system in place to deal with the dedicated environment AND the EC2 environment, which is why devops cost will be higher. Only if you choose your systems so that they can't be used across both platforms. I don't see why anyone would do that if they want to run a hybrid setup. > Inter-datacenter network issues are less of a problem when your datacenters are from the same provider If your data centers are from the same provider, your added degree of resilience is much lower. > because they are responsible for making sure the connection is good. That doesn't help you when one of the data centers goes out entirely. Such as when the power needs to be cut for fire brigade safety due to a fire alarm (yes, I've experienced that), or the supposedly redundant UPS's triggers failsafes and causes the entire site to go down (experienced that too), or when one of the sites see cascading failures take out heir entire network (seen that happen too). Assuming you will have live, working network connections between your locations, and/or that all your locations will stay online is pretty much guaranteed to cut your availability. Basically, if your systems can't operate independently, adding an extra data center means adding more failure points.

by jd007 13y ago

vidarh 13y ago

> you have to have the ops system in place to deal with the dedicated environment AND the EC2 environment, which is why devops cost will be higher. Only if you choose your systems so that they can't be used across both platforms. I don't see why anyone would do that if they want to run a hybrid setup. > Inter-datacenter network issues are less of a problem when your datacenters are from the same provider If your data centers are from the same provider, your added degree of resilience is much lower. > because they are responsible for making sure the connection is good. That doesn't help you when one of the data centers goes out entirely. Such as when the power needs to be cut for fire brigade safety due to a fire alarm (yes, I've experienced that), or the supposedly redundant UPS's triggers failsafes and causes the entire site to go down (experienced that too), or when one of the sites see cascading failures take out heir entire network (seen that happen too). Assuming you will have live, working network connections between your locations, and/or that all your locations will stay online is pretty much guaranteed to cut your availability. Basically, if your systems can't operate independently, adding an extra data center means adding more failure points.