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I should have mentioned I'm using Kernel 3.10. Thanks, its interesting reading. Normally I'd be looking at a writethrough or passthrough cache, hence EnhanceIO would be the better choice - but perhaps writeback is ok when its being stored on a SSD for replay even after crashes? EnhanceIO is a...

Both nobarrier and writeback can be dangerous fpr your data and normally would not be recommended in production. *if* your sata controller performs no caching - i.e writes direct to disk, then nobarrier should be safe. writeback will always be dangerous, the system reports writes as completed...

Using bcache to create a SSD cache for one desktop PC is certainly worthwhile. But I'm wondering if the same applies for VM hosting, which I imagine has rather different IO patterns. I'm testing a two node/brick glusterfs replicate setup, with the proxmox ndoes also being gluster nodes...

I have a 3 node proxmox ceph cluster working, with vm images. I'm trying to mount the ceph file system with fuse, but it just hangs on "starting ceph client" root@vng:/etc/pve# ceph-fuse /mnt/ceph ceph-fuse[28275]: starting ceph client or root@vng:/etc/pve# ceph-fuse -m 10.10.10.241:6789...