System design implications of declining network latency vs. disk latency

Re:System design implications of declining network latency v... by MichaelGG on Monday November 02, 2015 @02:14PM (#10494289)

Somewhat related: Is there any solid open source (or commercial?) software that can just join several servers into a redundant, SPOF-less, RAM-based block storage device? Perhaps exposed via iSCSI or something so it'd work for any client?

Idea would be that I could setup two separate racks with UPSes, specify a safety factor, then have super-fast shared disk/block available. (DB clustering or whatever.)

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Re:System design implications of declining network latency v... by mdk754 on Thursday November 05, 2015 @10:35AM (#10513866)

I could be wrong and haven't explored the idea myself, but couldn't you accomplish this with something like ceph or scaleio and tmpfs/ramdisk for your block devices?

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