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Chapter 2 HPSS Planning
HPSS Installation Guide September 2002 125
Release 4.5, Revision 2
HPSS Static Configuration Variables. Table 2-7 defines the HPSS static configuration variables,
which have more of a static nature in that they are not particularly relevant to how large the HPSS
system will be. They relate more to how many HPSS servers, storage classes, etc. will be defined
and therefore are not significant in the overall metadata size projection.
Total Disk Physical
Volumes
The maximum total number of disk physical volumes.
Total Disk Virtual
Volumes
The total number of disk virtual volumes that will be created, which is equal to the
number of disk physical volumes divided by the average disk stripe width.
Total Tape Physical
Volumes
This is the total number of Physical Volumes that will be managed by this subsystem.
Total Tape Virtual
Volumes
The total number of tape virtual volumes that will be created, which is equal to the total
number of all PVR cartridges divided by the average tape stripe width.
Table 2-7 HPSS Static Configuration Values
Variable Description
Total Subsystems The number of subsystems controlled by this HPSS instance.
Total Storage
Classes
The maximum number of storage classes that will be defined.
Total Storage
Hierarchies
The maximum number of storage hierarchies that will be defined.
Total Storage
Families
The maximum number of file families that will be defined.
Total Classes of
Service
The maximum number of classes of service that will be defined, which typically will
equal the total number of storage hierarchies created.
Total Tape Drives The total number of tape drives used by HPSS.
Total HPSS Servers The overall number of HPSS servers that will be defined. This includes the Name
Server, BFS, Storage Servers, Log Daemon, Log Clients, Startup Daemons, Movers,
etc.
Total BFS Servers The total number of BFS servers that will be configured. This value should be equal to
the number of subsystems.
Total Number of
DMAP Gateways
This defines the total number of DMAP Gateway Servers that will be defined in the
system.
Total Name Servers The total number of Name Servers that will be created. This value should be equal to
the number of subsystems.
Table 2-6 HPSS Dynamic Variables (Continued)(Subsystem Specific)
Variable Description