There
are limitations in switch zoning for the Lenovo Storage V7000 and
the HP MA and EMA systems.
Attention: The HP MA and EMA systems
are supported
with a single HSG80 controller or dual HSG80 controllers. Because
the Lenovo Storage V7000 only
supports configurations in which the HSG80 cache is enabled in write-back
mode, running with a single HSG80 controller results in a single point
of data loss.
Switch
zoning
For Lenovo Storage V7000clustered systems that
have installed software version 1.1.1, a single Fibre
Channel port that is attached to the system can be present
in a switch zone that contains Lenovo Storage V7000Fibre Channel ports, whether the HP MA or EMA
system uses one or two HSG80 controllers. This guarantees that the
nodes in the system can access at most one port on the HSG80 controller.
For Lenovo Storage V7000 systems
that have software version 1.2.0 or later installed, switches can
be zoned so that HSG80 controller ports are in the switch zone that
contains all of the ports for each Lenovo Storage V7000 node.
Connecting to the SAN
Multiple ports from
an HSG80 controller must be physically connected to the
Fibre Channel SAN to enable servicing of the
HP MA or EMA system. However, switch zoning must be used as described
in this topic.
Note: If the HP Command Console is not able to access
a Fibre Channel port on each of the
HSG80 controllers in a two-controller system, there is a risk of an
undetected single point of failure.