HP D2D D2D Best Practices for VTL, NAS and Replication implementations (EH985- - Page 20
Direct Attach Private Loop, Zoning - devices
View all HP D2D manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 20 highlights
Direct Attach (Private Loop) A direct attach (private loop) topology is implemented by connecting the D2D appliance ports directly to a Host Bus Adapter (HBA). In this configuration the Fibre Channel private loop protocol must be used. Fibre Channel, direct attach (private loop) topology HP StorageWorks D2D Backup System Virtual Library 1 (e.g. D2D Generic) Medium Changer Tape Tape Drive 1 Drive 2 Medium Changer Virtual Library 2 (e.g. MSL 4048) Tape Tape Tape Tape Drive 1 Drive 2 Drive 3 Drive 4 Virtual Library n (e.g. MSL 2024) Medium Changer Tape Tape Drive 1 Drive 2 FC Port 1 FC Port 2 FC HBA Host 1 FC HBA Host 2 Either of the FC ports on a D2D Backup System may be connected to a FC private loop, direct attach topology. The FC port configuration of the D2D Appliance should be changed from the default N_Port topology setting to Loop. This topology only supports a single host connected to each private loop configured FC port. Zoning Zoning is only required if a switched fabric topology is used and provides a way to ensure that only the hosts and targets that they need are visible to servers, disk arrays, and tape libraries. Some of the benefits of zoning include: Limiting unnecessary discoveries on the D2D appliance Reducing stress on the D2D appliance and its library devices by polling agents Reducing the time it takes to debug and resolve anomalies in the backup/restore environment Reducing the potential for conflict with untested third-party products 20