Technical data
Associated Products Features
6.5 DECram for OpenVMS Version 3.0 (Alpha)
• Multiple DECram devices can be members of a Volume Shadowing for
OpenVMS shadow set and can be served by Mass Storage Control Protocol
(MSCP) or QIO served.
• Volume Shadowing for OpenVMS will support shadow sets composed of
DECram devices and other disk class devices.
• A new DECram command interface (DECRAM>) can be used for creating,
initializing, and mounting DECram disks.
DECram Version 3.0 and supporting documentation are included in the OpenVMS
Version 7.3 CD-ROM in the [.DECRAM_030] directory.
6.6 Enterprise Capacity and Performance (ECP)
Beginning with OpenVMS Version 7.3, the following Enterprise Capacity and
Performance (ECP) management tools will be provided at no additional costs. The
ECP Data Collector for OpenVMS and ECP Performance Analyzer for OpenVMS
will be available to customers who have a valid license to operate OpenVMS
Version 6.2 or later. These products are available from the following World Wide
Web site:
http://www.openvms.compaq.com/openvms/system_management.html
Software Support Services for these products are sold separately and are available
on an incremental basis. Please contact your Compaq Services representative for
further details.
6.6.1 ECP Collector for OpenVMS Version 5.4
ECP Collector for OpenVMS Version 5.4 gathers performance and capacity
planning data on OpenVMS operating systems. OpenVMS data collection has
three main criteria; the amount of performance data collected, the time interval,
and the efficiency or amount of overhead impacting the system. ECP Collector for
OpenVMS provides the following:
• Robust data collection set. It collects system metrics on over 250 OpenVMS
performance parameters.
• Flexible data collection. The sampling rate of data can be tuned down to
sub-second intervals.
• Low overhead. Audited production systems have routinely shown that ECP
Collector for OpenVMS has less than a 1.5% impact on the CPU.
Satisfying the needs of Enterprise Management, ECP Collector for OpenVMS also
contains an API that provides an interface for the access of performance data.
This interface converts the contents of the .CPC data file generated by the data
collector into a formatted, comma-separated ASCII file that can then be used for
performance analysis and reporting programs.
6.6.2 ECP Performance Analyzer for OpenVMS Version 5.4
Compaq’s ECP Analyzer for OpenVMS Version 5.4, which runs under Motif,
analyzes the data provided by the ECP Collector for OpenVMS data collector.
ECP Analyzer for OpenVMS provides the entry point into the data collector, and
allows the user to select the sampling rate and to view the performance data in
graphical format. The product provides historical information in standard graphs
based upon the requested time interval. Graphs are provided for all common
performance issues that need to be analyzed including the CPU, the memory, and
6–4 Associated Products Features