Installation guide

11
Once the vdisks and volumes are created for each P2000 the next step is to explicitly map the volume to the
controller host ports for access by the host. Both controllers share one set of LUNs so if a controller fails the other
controller can access all LUNs on the array. Each 400GB volume was assigned as an explicit type LUN to one of the
DL980 FC HBA Host IDs as read-write for each of the two controllers in the P2000 enclosure; so in our example using
the storage management GUI we select our volume DATA_12_A1 (data volume for array 12 on Controller A1 port)
and then select Explicit Mappings to bring up the screen shown in figure 4, where controller port A1 and LUN 1 are
explicitly assigned to a FC HBA ID and controller B1 and LUN 2 are assigned to a second FC HBA ID as a secondary
path. This allows us to distribute the volumes evenly over the 24 FC HBAs and setup OS multipathing for primary and
failover paths for redundancy.
We would in turn do this for the remaining 47 vdisk volumes. The 24 FC HBA ports on the DL980 are identifiable by
“50014” as the beginning of the Host ID (WWPN) in our list below.
Figure 4. Specifying the explicit mapping to DL980 FC HBA WWPN IDs for access to the volume DATA_12_A1