There are limitations in switch zoning for the Lenovo Storage V7000 and
the HDS USP or NSC.
The Lenovo Storage V7000 can
be connected to the HDS USP or NSC with the following restrictions:
- If an LU is mapped to a Lenovo Storage V7000 port
as LUN x, the LU must appear as LUN x for all mappings
to target ports.
- Only Fibre Channel connections
can be used to connect a Lenovo Storage V7000 to
the HDS USP or NSC system.
- Because the Lenovo Storage V7000 limits
the number of worldwide node names (WWNNs) for each storage system
and the HDS USP and NSC present a separate WWNN for each port, the
number of target ports that the Lenovo Storage V7000 can
resolve as one storage system is limited. Perform the following steps
to provide connections to more target ports:
- Divide the set
of target ports into groups of 2 to 16.
- Assign a discrete
set of LUs to each group.
The Lenovo Storage V7000 can
then view each group of target ports and the associated LUs as separate
HDS USP or NSC systems. You can repeat this process to use all target
ports.
Note: The HDS USP and NSC systems present themselves
to a Lenovo Storage V7000clustered system as
separate controllers for each port zoned to the Lenovo Storage V7000. For
example, if one of these storage systems has 4 ports zoned to the Lenovo Storage V7000,
each port appears as a separate controller rather than one controller
with 4 WWPNs. In addition, a given logical unit (LU) must be mapped
to the Lenovo Storage V7000 through
all controller ports zoned to the Lenovo Storage V7000 using
the same logical unit number (LUN).
Controller
splitting
You can split the HDS
USP or NSC between other hosts and the
Lenovo Storage V7000 under
the following conditions:
- A host cannot be simultaneously connected
to both an HDS USP or
NSC and a Lenovo Storage V7000.
- Port security must be enabled for target ports that are shared.
- An LU that is mapped to a Lenovo Storage V7000 cannot
be simultaneously mapped to another host.