The network for ZFS supports "virtual storage device.

Hello

I'll put up a 5.1 ESXI machine to test the performance / proof of concept with a "storage device" in a virtual machine on a host computer.

Right now I use a version of solaris (community edition of nexenta) to test.

With success, I was able to set up the machine with through disk controllers and add a vswitch initial with a configured vmkernel port and a group of ports for virtual machines. -J' was able to set up comments solaris vm with two adapters e1000 in the vswitch, to be used for the management and the other configured with an address within the same private network that the port on the management... network vmkernel and things seem to work well.

I wanted to test if there is no improvement in performance using the vmxnet3 adapter and have a completely 'virtual network' dedicated solely to the nfs traffic.

So I created an additional vswitch without adapters attached to it, with an another vmkernel port and a second virtual machine portgroup and added a vmxnet3 adapter to my "vm storage" to go on this vswitch.

Before I do, I was wondering if VMCI or anything else already going to do what I want (i.e. ESXi allow communicate with the computer in virtual storage on nfs with speeds above that the limitation of the e1000 adapter would provide by default)

I say this because my initial test with iozone gave me numbers that seemed beyond 1 GB...

So, to summarize, the e1000 would be made generally better than 1 Gbit of networking 'local' (in the same host); and (assuming that the handles of the tcp/ip stack of the guest OS UI VMXNET3 well - IE drivers, configuration, the efficiency of the OS.)  the VMXNET3 adapter would be even better.

It can even better if the uplink to the physical network is faster.  The rate of 1GBit 'link' basically means nothing.

If someone could point me to a 'best practice' guide or the discussion about setting up isolated networks 'private host' for best performance with NFS virtualized shared storage, I'd appreciate it. My plan is to implement three hosts, with the majority of local data stores to the same host, with little nfs traffic going to each box...

Well, there's really only 1 way to set up a network of 'host-only', so I don't think you will find a guide BP.

Also the terminology escapes me a bit, because 'virtual private network', 'private network' have other meanings in other contexts. Don't know what to call a network which has not set the physical network adapters and is localized to a single ESXi host...

Most called it a network invited only.

Tags: VMware

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