I'm considering using AoE with Xen, my setup would be vblade on one FC7 storage server with mdraid over 6x SATA disks, and two xen hosts with FC7 using aoe+aoetools, using eth1 on all servers to a separate VLAN for SAN traffic, eth0 used for normal LAN traffic, all gigabit. I'm wondering does it make more sense to slice up /dev/md1 on the storage server with LVM and then serve multiple /dev/VGxx/LVxx block devices with individual vblade processes using their own AoE shelf/slot ID to individual dom0 (or direct to AoE in domU)? Or to serve the whole /dev/md1 using a single vblade process on the storage server and then use CLVM or GFS on each xen dom0 to slice up a single /dev/etherd/e0.0 in a coordinated way? My thoughts are that using a cluster filesystem would save the hassle of starting/stopping vblade processes whenever resizing LVs and any associated confusion of shelf/slot IDs But I'm not sure of the overhead of cluster filesystems, does DLM only get involved for maintenance operations on LVs, or for all I/O activity? Thoughts welcome from anyone using (or having attempted) either approach ... -- Fedora-xen mailing list Fedora-xen@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-xen
