Figure 25. Connecting hosts: ME4 Series 5U direct attach – four servers, one HBA per server, dual path
1. Server 1
2. Server 2
3. Server 3
4. Server 4
5. Controller module A
6. Controller module B
Dual-controller module configurations – switch-attached
A switch-attached solution—or SAN—places a switch between the servers and the controller enclosures within the storage system.
Using switches, a SAN shares a storage system among multiple servers, reducing the number of storage systems required for a particular
environment. Using switches increases the number of servers that can be connected to the storage system.
NOTE:
About switch-attached configurations:
• See the recommended switch-attached examples for host connection in the
Setting Up Your Dell EMC PowerVault
ME4 Series Storage System
document that is provided with your controller enclosure.
• See
Figure 18. Two subnet switch example (IPv4)
for an example showing host port and controller port addressing on
an IPv4 network.
Figure 26. Connecting hosts: ME4 Series 2U switch-attached – two servers, two switches
1. Server 1
2. Server 2
3. Switch A
4. Switch B
5. Controller module A
6. Controller module B
28
Cable host servers to the storage system
