Ask HN: Who operates at scale without containers?

Re:Ask HN: Who operates at scale without containers? by senorsmile on Tuesday March 22, 2022 @07:55PM (#30773154)

In 2009 I had a pair of (what I thought at the time) very cleverly architected VM servers with complete redundancy between them. Either one could be pulled and there'd maybe be a few seconds of data loss at the worst. One day lightning struck the building and even managed to "jump" the grounded pair of UPS's and fried all hard disks in both nodes.

Thankfully I had both onsite and offsite backups; but it took a couple of weeks to order the new equipment, install it and set everything up again.

Now I "devops" all the things and always have the ability to spin up all the services and restore from backups within minutes. This is the new standard in my opinion.

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Re:Ask HN: Who operates at scale without containers? by exikyut on Wednesday March 23, 2022 @02:13PM (#30781501)

Two questions:

1. How would power conditioners and lightning arresters handle these sorts of situations?

2. Was this using VMWare fault tolerant VMs, just out of curiosity? (It continually live-migrates one VM to a hot spare over a 10G link so either can disappear and the VM continues to run.) Or was this a bespoke application architecture implementing effectively the same thing?

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Re:Ask HN: Who operates at scale without containers? by maccolgan on Tuesday March 22, 2022 @08:06PM (#30773242)

I think it's always better to have the mirror be located in a separate datacenter and then connect both via a SDN.

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Re:Ask HN: Who operates at scale without containers? by pclmulqdq on Tuesday March 22, 2022 @10:52PM (#30774319)

Why not both?

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Re:Ask HN: Who operates at scale without containers? by JohnBooty on Tuesday March 22, 2022 @10:49PM (#30774306)

Yeah, there definitely needs to be an offsite spare for sure.

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