Figure 2-7
NAS software and application architecture
Application Software
The N8300 uses the following application software when deployed on the SAN, including:
l
UltraPath
UltraPath is a set of path management software. UltraPath controls the access from
application server to the storage unit, selects the optimal path, and guarantees the reliability
and security during data transfer between the application server and the storage unit.
UltraPath manages paths between the application server and the storage unit, and provides
a simple and efficient path management solution for users. Software functions include:
–
Selection of paths between the application server and the storage unit
UltraPath is loaded as a kernel module and registered as a virtual storage unit in the
operating system. The application server communicates with the storage unit through
the path selected by UltraPath.
–
Failover
Failover refers to service switchover upon failure. To ensure reliable data transfer,
multiple paths are required between the application server and the storage unit. When
the primary path fails, the failover function of UltraPath automatically switches services
over to the backup path, avoiding service interruptions due to a single-point failure.
Symantec FileStore N8300 (Software Release 5.6)
Product Description Guide
2 System Architecture
Issue 01 (2011-05-05)
Symantec Corporation
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