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Epic on ONTAP - protocols

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FCP is the preferred protocol for presenting LUNs.
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NetApp recommends single initiator zoning: one initiator per zone with all the required target ports on storage using worldwide port names (WWPNs). The presence of more than one initiator in a single zone is likely to lead to intermittent HBA crosstalk, which causes significant disruption. |
After the LUN is created, map the LUN to the initiator group (igroup) containing the WWPNs of the host to enable access.
NetApp also supports using NVMe/FC (if you have versions of AIX and RHEL operating systems that are capable) and enhances the performance. FCP and NVMe/FC can coexist on the same fabric.