On 06/03/2015, at 16.50, Jake Young <jak3kaj@xxxxxxxxx> wrote: > > After seeing your results, I've been considering experimenting with that. Currently, my iSCSI proxy nodes are VMs. > > I would like to build a few dedicated servers with fast SSDs or fusion-io devices. It depends on my budget, it's hard to justify getting a card that costs 10x the rest of the server... I would run all my tgt instances in containers pointing to the rbd disk+cache device. A fusion-io device could support many tgt containers. > > I don't really want to go back to krbd. I have a few rbd's that are format 2 with striping, there aren't any stable kernels that support that (or any kernels at all yet for "fancy striping"). > I wish there was a way to incorporate a local cache device into tgt with librbd backends. What about a ram disk device like rapid disk+cache in front of your rbd block device http://www.rapiddisk.org/?page_id=15#rapiddisk /Steffen
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