For anyone who cares: I created an ESXi machine. Installed two guest (centos) machines and vmware-tools. Connected them to each other via only a virtual switch. Used rsh to transfer large quantities of data between the two guests, unencrypted, uncompressed. Have found that ESXi virtual switch performance peaks around 2.5Gbit.
Also, if you have a NFS datastore, which is not available at the time of ESX bootup, then the NFS datastore doesn't come online, and there seems to be no way of telling ESXi to make it come online later. So you can't auto-boot any guest, which is itself stored inside another guest. So basically, if you want a layer of ZFS in between your ESX server and your physical storage, then you have to have at least two separate servers. And if you want anything resembling actual disk speed, you need infiniband, fibre channel, or 10G ethernet. (Or some really slow disks.) ;-) _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss