Software Distributor Administration Guide HP-UX 11i v1, 11i v2, and 11i v3 (5900-2561, March 2013)

8 Reliability and Performance
This chapter describes the interrelationship of Software Distributor reliability features and
performance. Understanding how these features work together will help you improve the overall
reliability of your software distribution system.
Table 32 Chapter Topics
Topics:
“Overview ” (page 137)
“Groups and Source Options” (page 138)
“Large Numbers of Targets” (page 138)
“Timeout Options ” (page 138)
“Retry RPC and Retry Interval” (page 139)
“Retry Command” (page 139)
“Database Checkpointing ” (page 140)
“Compression ” (page 140)
“Staging ” (page 141)
“Recovery (Install Only) ” (page 142)
“Installation With Separate Configuration” (page 143)
“Multiple Versions ” (page 143)
8.1 Overview
SD-UX install and copy throughput are dependent on the following factors:
• Speed of the network
• Size (i.e., number of bytes) of the product being transferred
• Number of files being transferred
• Number of targets any one source is serving simultaneously
SD-UX provides many features that can be used together to increase the speed and success rates
of distributed installations and copies. Many features are controlled by options set in the system
defaults file, separate options file, command line, or GUI. This lets you set these features and
options to best suit your own particular network and software needs.
These options and features can be categorized as follows:
• Group and source options: SD-UX eliminates the need to duplicate specification of commonly
used groups of targets and software. Also, using the source option to specify a main depot
reduces the number of dialog boxes.
• Large numbers of targets: Options that limit the number of simultaneous targets.
• Timeout options: Options that control how long the task attempts to retry low-level
communications for file transfers before giving up.
• Retry RPC and retry intervals: Options that control the intervals between retries when the
controller or targets attempt to re-establish lost connections.
• Retry command: Options that facilitate retrying operations that have failed. These can be used
in conjunction with the checkpointing features or can start the task from the beginning.
8.1 Overview 137