HP NonStop G-Series - Manual (Page 141)

Balancing and Tuning a System
Measure User’s Guide — 520560-003
7 -5
Learning About the System and Its Applications
Learning About the System and Its Applications
You must know your system so you can understand its limitations. You must learn
about each major application to determine how easily you can distribute its workload.
Knowing your system and the applications that run on it can help you anticipate
problems before they arise, identify problems more quickly and accurately when they
arise, and apply the best solutions to resolve those problems.
To become familiar with the system and its major applications, draw detailed diagrams
of each.
Figure 7-2 on page 7-6 and Figure 7-3 on page 7-7 show sample diagrams of
systems running a D-series RVU and a G-series RVU, respectively.
The system diagram should contain this information, most of which can be found in the
SYSGEN files:
•
CPU numbers, CPU types, and memory configuration.
•
Disks on each CPU. Designate which CPU contains the primary disk process and
which the backup, and indicate whether the disk is mirrored and which controllers
have disks configured.
•
Other I/O devices. Designate which CPU contains the primary I/O process and
which the backup. For terminals, include the name of each controller and the
number of terminals under its control.
•
Communication lines on each CPU, including line names.
•
Network connections on each CPU, including line names and whether the
connection is Expand or FOX.