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Not just laptops! SQL Azure doesn't use ECC memory[1], which might suggest the rest of the Azure platform doesn't, either. I haven't found citations for AWS usi
by MichaelGG 12y ago
Not just laptops! SQL Azure doesn't use ECC memory[1], which might suggest the rest of the Azure platform doesn't, either. I haven't found citations for AWS using ECC, so perhaps they don't. Maybe this could be used to break out of VMs on those platforms.
1: https://social.msdn.microsoft.com/Forums/azure/en-us/84000f7a-ad23-4ce2-8de6-c5efffda9f00/azure-doesnt-use-ecc-memory?forum=ssdsgetstarted https://social.msdn.microsoft.com/Forums/azure/en-us/84000f7... (I remember I asked about Windows Azure, but my posting clearly says SQL Azure, so perhaps it's a different hardware platform.)
- AaronFriel 12y agoThis may be just speculation, as the memory density in cloud hosts is rarely possible with non-ECC memory. I've found that when purchasing RAM for systems, it's fairly common for server and multi-rank to imply ECC, although I've had to look at product sheets to verify that. Now, I could be wrong, but it would be quite a surprise to find out that any of the cloud services are not using ECC. I suspect they all are, but they don't advertise it.
- MichaelGG 12y agoWell I mean I asked in that thread, and MS replied stating they simply do not need ECC. I quoted a line from Google's study on memory errors, and Azure replied: "In our scenario, we have not seen bit error rates that align with the quote you mention". I suppose I could just spin up a 56GB instance and let it run a memtest for a week and see, right?
- yuhong 12y agoSQL Azure probably need less RAM than Windows Azure VMs on the other hand.