MPIO Behavior
The server must have at least two FC or iSCSI ports to use MPIO.
When MPIO is configured, a server can send I/O to multiple ports on the same storage controller.
MPIO Configuration Instructions for Host Servers
If a Storage Manager wizard is used to configure host server access to the Storage Center, the Storage Manager attempts to automatically
configure MPIO with best practices.
NOTE:
Compare the host server settings applied by the Storage Manager wizard against the latest Storage Center Best
Practices documents (listed in the following table) on the Dell TechCenter site (
http://en.community.dell.com/techcenter/
).
Table 1. MPIO Configuration Documents
Operating System
Document with MPIO Instructions
Linux
•
Dell EMC SC Series with Red Hat Enterprise Linux (RHEL) 6x Best Practices
•
Dell EMC SC Series with Red Hat Enterprise Linux (RHEL) 7x Best Practices
•
Dell Storage SC Series Arrays with SUSE Linux Enterprise Server 12
VMware vSphere
•
Dell EMC SC Series Best Practices with VMware vSphere 5.x-6.x
Windows Server 2008 R2, 2012,
2012 R2, 2016
Dell Storage Center: Microsoft Multipath IO Best Practices
Connecting to Host Servers with Fibre Channel HBAs
A storage system with Fibre Channel front-end ports connects to one or more FC switches, which connect to one or more host servers
with Fibre Channel HBAs.
Fibre Channel Zoning
When using Fibre Channel for front-end connectivity, zones must be established to ensure that storage is visible to the servers. Use the
zoning concepts discussed in this section to plan the front-end connectivity before starting to cable the storage system.
Dell recommends creating zones using a single initiator host port and multiple Storage Center ports.
WWN Zoning Guidelines
When WWN zoning is configured, a device may reside on any port, or change physical ports and still be visible, because the switch is
seeking a WWN.
List of guidelines for WWN zoning.
•
Include all Storage Center virtual World Wide Port Names (WWPNs) in a single zone.
•
Include all Storage Center physical World Wide Port Names (WWPNs) in a single zone.
•
For each host server HBA port, create a zone that includes the HBA port WWPN and multiple Storage Center virtual WWPNs on the
same switch.
•
For Fibre Channel replication from Storage Center system A to Storage Center system B:
Connect the Front-End Cabling
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