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It's interesting that this new generation has moved away from onboard ssds. The extra features of EBS SSDs are pretty useful (ie. snapshotting) But having att
by matthewrudy 12y ago
It's interesting that this new generation has moved away from onboard ssds.
The extra features of EBS SSDs are pretty useful (ie. snapshotting)
But having attached disks was super fast.
- makmanalp 12y agoI'm considering switching to these from C3 and it would be interesting to see hdparm outputs / etc on these if anyone is going to try them.
- pwarner 12y agoI presume they will add storage optimized instances with local disks in the future?
- matthewrudy 12y agoI guess so. Last time we spec-ed up an ElasticSearch cluster the SSD EBS didn't exist yet, so on-board SSDs was an obvious win. I should revisit it again some time.
- otterley 12y agoSSD instance storage will always be significantly faster than EBS storage, even if SSD-backed. I'm disappointed that Amazon dropped it from their C4 offering. For Elasticsearch, we use R3 (memory-optimized) instances which still have SSD instance storage. And boy is it ever fast.
- eropple 12y agoI don't care about disk speed nearly as much as I do reliability. EBS combines inconsistency with unreliability. It is the worst of both worlds for building a reliable, redundant infrastructure. I'm pretty bummed.
- chisleu 12y agoOnboard SSDs are better for some use cases... high volume queues come to mind. C3 SSDs were crazy faster than even the fastest EBS option listed, plus you could raid0 them... Fortunately for me, I don't need that much disk space and C3's aren't going anywhere for a while.