EMC FC4700 - page 82

6
6-2
EMC Fibre Channel Storage System Model FC4700 Configuration Planning Guide
Storage-System Hardware
The storage systems attach to the server and the interconnect
components as described in Chapter 1. To review the installation
types:
•Unshared direct, with one server, is the simplest and least costly;
•Shared-or-clustered direct, with a limit of two servers, lets two
servers share storage resources with high availability; and
•Shared switched, which has two switch fabrics, lets two to 15
servers share the resources of several storage systems in a storage
area network (SAN).
For FC4700 storage systems, at least one network connection is
required.
Figure6-1 Types of Storage-System Installation
EMC1826
Server
component
Interconnect
component
Storage
component
Unshared Direct
(one or two servers)
Shared or Clustered
Direct (two servers)
Shared Switched (multiple servers,
Multiple Paths to SPs)
Adapter Adapter
Server
Adapter Adapter
Server
Adapter Adapter
Server
Adapter Adapter
Server
Adapter Adapter
Server
Adapter Adapter
Server
Path 1
Path 2
Switch fabric Switch fabric
SP A
Storage system
SP BSP A
Storage system
SP BSP A
Storage system
SP BSP A
Storage system
SP BSP A
Storage system
SP B