
320 Implementing NFSv4 in the Enterprise: Planning and Migration Strategies
Figure B-2 illustrates the high-level architecture of the GSA File.
Figure B-2 GSA File high-level architecture
Server hardware
There are three main classes of servers in the GSA File environment: file
servers, directory servers, and dispatchers.
The initial selection for file server hardware platform was effectively determined
by the available hardware. When GPFS deployment began, it only ran on AIX in
the SP environment, which determined hardware deployed in the first GSA File
cells. Quickly thereafter, GPFS was supported on IBM Eserver pSeries
systems, and clustered pSeries ...