Question: I
am about to purchase a EMC VNXe3150 with dual controllers. I'd like to have redundant switches. I was looking at the WS-C2960S-24TS-S which
comes with LAN entry lite feature set.
Will I be
able to connect two nic ports from each of 2 hyper-v hosts and two nic ports
from each SAN controller to each switch and have 4Gbps connectivity from HOST
to SAN using LACP? Will the switches
need to be connected to each other?
Using LACP?
If one
switch fails would each server still have 2 Gbps connectivity to the SAN? Could you provide more detail as to what is
involved in the setup?
Answer: With
iSCSI you would generally use MPIO rather than LACP etc. In general you don't
get all paths in use for a single LUN but if you use multiple LUNs then round
robin will assign a 1Gb path to the first LUN (say your E: drive) and a second
path to the second LUN (say F:). Dependant on your iSCSI initiator LACP may not
be supported. Not sure if the VNXe supports trunking rather than MPIO either.
BTW, it's
not a SAN Cisco Switch just because you're running iSCSI over it, it's really just an
Ethernet/LAN switch but that's just me being pedantic.
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