I have a large number of linux systems with a lot of ram. A lot of the ram is not used. I also have an unused network on the second ethernet port.
I would like to create ramdisks of 8Gb each on these systems (theses systems have 16-32Gb of ram in each of them), and then finds someway to export them across the net as a block device, like using iSCSI, to then RAID together into one fast network drive. The idea is it will be slower than a local ramdisk, but faster than a normal harddrive. Unfortunately, it doesn't looks like a ramdisk uses or creates a /dev/ block device.
Anyone ever tried this?