HP StorageWorks 2/24 FW 07.00.00/HAFM SW 08.06.00 McDATA Products in a SAN Env - Page 201
Set GbE switches to auto-negotiate, Dedicate storage ports to data replication
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Implementing SAN Internetworking Solutions 4 7. Zone controller port pairs - When implementing load sharing, create a separate zone for each pair of communicating ports (one initiator and one target per zone). Assign the zones to different intelligent (iFCP) ports on the SAN router. If the IP network correctly distributes the load across two paths, then load sharing is implemented. If the SDR or ADR application performs load balancing across two controllers, then load balancing is implemented. Perform zoning by node WWN. Port zoning is not supported between mSANs (through iFCP). 8. Do not use default zoning - Do not implement default zoning through the SANvergence Manager application. When performing an installation, the application displays a single zone named zone1 (with corresponding ID:1). This zone is for default zoning and should not be used. 9. Dedicate storage ports to data replication - Storage array ports should be dedicated to SDR or ADR traffic. Do not share data replication and local traffic applications on the same port. 10. Set GbE switches to auto-negotiate - SAN router GbE ports operate only at GbE speed, therefore GbE Ethernet switches should be set to auto-negotiate with SAN routers to provide connectivity. The setting can be disabled only if both devices are set to not auto-negotiate. 11. Set data compression level to Auto - Two problems associated with data compression are incorrect algorithm selection or compression which is ineffectual because the extended-link bandwidth exceeds the SAN router bandwidth. Set the compression level to Auto at the Advanced TCP Configuration dialog box (for any selected compression algorithm). Using this compression level mode, the SAN router automatically detects if compression can be used. 12. Configure the iFCP timeout setting to 10 seconds - At the iFCP Setup dialog box, set the default remote timeout setting (iFCP timeout) to 10 seconds for all ADR applications. 13. Configure out-of-band product management - SAN routers can be managed through inband or out-of-band connectivity. Inband management is provided through the same GbE connections used for iFCP storage traffic. Out-of-band management is provided through a data center LAN that connects servers, workstations, and other network-related equipment. Out-of-band product management is recommended. Implementing SAN Internetworking Solutions 4-57