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filesystem user error can be just as deadly on aws as it can on your own hardware. either way, you need good backups. While I agree that amazon itself is unl
by lsc 16y ago
filesystem user error can be just as deadly on aws as it can on your own hardware. either way, you need good backups.
While I agree that amazon itself is unlikely enough to go down that you can pretty much bet the company on it, any one server at amazon may go down at any time. Now, amazon has the huge advantage of being able to give you another server at any time, but you need to be prepared for that. any data on your local disk would be gone, and you need to be able to re-connect to your EBS store from only one instance. (many, many of the 'admin error' cases of data loss i've seen stemmed from mounting a network block device read/write on two different servers without a clustered file system.)
My point is just that amazon doesn't free you from the need for (and mistakes of) *NIX admins (like heroku, app engine and engine yard should.)
- count 16y agoThat's a good point - you could argue it doesn't free you from the need of a good admin, and it actually makes it more difficult to hire someone who knows what they are doing; good cloud SA skills are much more rare than good traditional SA skills. When you can just drive to the datacenter and toss in some more disks or drop your new F5 on there (or hack it together with CARP), but instead have to be familiar with exactly what the restrictions and use cases around the cloud providers offerings are; the field of candidates just got painfully smaller, and probably more expensive.