HA switching and nic question

[dreesedatalink]

Ok we have all seen this picture from the starwind website.

http://www.starwindsoftware.com/feature ... technology

With that said/reviewed I am having somewhat of a brain lapse here.

In theory if i have 4 1GB NICs in each HA san target. one for lan management, one for SYNC, and 2 bonded for san traffic. shouldn't one of each of the bonded NICs be jacked into each of the switches? obviously the lan NIC would be a separate LAN switch and the sync would be a direct connection.

so that would add a criss cross between the san targets and the 2 switches from the above graphic? and not just a straight link from SAN target A to switch A and a link from SAN target B to switch B

Or am i trying to make this more complicated than it needs to be. Datacore requires the criss cross maybe it is just because i am used to that config...

Thanks in advance.

[anton (staff)]

It's a very simplified drawing. Your real interconnect scheme could be very much different. For example you don't need a dedicated LAN / VLAN for management, existing iSCSI traffic network is OK as management is a 0,0000...1% bandwidth consumer. And you don't need any dedicated wiring for H/B channel(s). As H/B is capable of utilizing all of the existing routing paths. With current HA implementation any of the components (NICs, CPUs, HA nodes, H/V nodes etc) should be DOUBLED. More paths - better performance.