Connecting Hosts: Ds6200/Ds4200 Direct Attach - Four Servers/ One Hba Per Server/ Dual Path; Connecting Hosts: Ds6200/Ds4200 Switch Attach - Two Servers/ Two Switches; Connecting Hosts: Ds2200 Switch Attach - Two Servers/ Two Switches - Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

DS6200/DS4200
Server 1
Server 3
Figure 64 Connecting hosts: DS6200/DS4200 direct attach – four servers/ one HBA per server/ dual path
Switch attach
A switch attach 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.
DS6200/DS4200
Switch A
Figure 65 Connecting hosts: DS6200/DS4200 switch attach – two servers/ two switches
DS2200
Switch A
Figure 66 Connecting hosts: DS2200 switch attach – two servers/ two switches
78 Installation
Server 1
Server 1
0A
0B
Server 2
0A
0B
Server 2
0A
0B
Server 2
Server 4
Switch B
Switch B