TABLE 5 Configuration Overview for a Full-Fabric SAN (Continued)
Host Adapters per | Dual-port 2-Gbit FC | Dual-port 2-Gbit FC | Dual-port 2-Gbit FC |
server | | | |
Traffic Manager | Required | Required | Required |
Storage Switches | Two 8-port 2-Gbit | Two 16-port 2-Gbit | Two 32-port 2-Gbit |
| FC fabric switches | FC fabric switches | FC fabric switches |
| | | |
Full-Fabric SAN Tips and Techniques
■In the fabric SAN configuration, the switches communicate with the Sun StorEdge 3510 FC array host ports using a fabric point-to-point (F_port) mode. This enables transparent controller fail-over and fail-back without server-resident software.
However, supporting hot-swap servicing of a failed controller requires the use of multipathing software, such as the Sun StorEdge Traffic Manager, on the connected servers.
■Use of fabric point-to-point (F_port) connections between a Sun StorEdge 3510 FC array and fabric switches limits to 128 the total number of LUNs that can be presented. Fibre channel standards allow only one ID per port when operating point-to-point protocols, resulting in a maximum of four IDs, with a maximum of 32 LUNs each, supporting up to 128 LUNs.
Full-Fabric SAN Setup Details
The following example applies to a dual-controller array in a point-to-point configuration.
20 Sun StorEdge 3000 Family Best Practices Manual • October 2003