Document revision date: 19 July 1999 | |
Release notes pertaining to DECamds Version 7.2-1 follow.
1 Changes and Enhancements
The following sections describe important changes to DECamds in
Versions 7.2 and 7.2-1.
1.1 Incorrect Reporting That Process Is Not Running
In versions of DECamds prior to Version 7.2-1, the Process Name Search
function sometimes incorrectly reported that a process was not running.
A NOPROC message was sent to the event log for a named process, but the
remote system process list showed that the process was active. This
problem has been corrected.
1.2 PGFIPLHI System Crash in SYS$RMDRIVER.EXE
Prior to DECamds Version 7.2-1, after the application had run for many
hours, particularly under memory-constrained conditions, the system
sometimes failed in SYS$RMDRIVER.EXE. The reason for this failure was a
pagefault with an IPL too high (PGFIPLHI) bugcheck. This problem has
been corrected.
1.3 Number of CPUs Shown Correctly
Prior to OpenVMS Version 7.2, on SMP or Galaxy nodes with multiple
CPUs, if the number of CPUs changed, the number of CPUs shown was
incorrect and computations were made incorrectly. Beginning in Version
7.2, these anomalies have been corrected.
1.4 Installation Procedure Change
DECamds consists of client and server software:
In earlier versions of OpenVMS, you needed to install both client and
server software on your system from the lastest DECamds kit.
1.4.1 Server Software: No Installation Required
Beginning with OpenVMS Version 7.2, the Data Collector ships as part of the OpenVMS installation. In other words, after you install or upgrade to OpenVMS Version 7.2, the Data Collector is on your system.
To use the Data Collector, do either of the following:
Beginning in OpenVMS Version 7.2, you need to reinstall the DECamds client software on the system where you run the client, or graphical user interface. You need to do this to obtain the new library for DECamds Version 7.2 and later.
Making RMDRIVER part of OpenVMS requires moving the following files:
File | New Directory Location |
---|---|
AMDS$DRIVER_ACCESS.DAT | SYS$MANAGER |
AMDS$RMCP.EXE | SYS$SYSTEM |
AMDS$LOGICALS.COM | SYS$MANAGER |
These new directory locations should not affect previous copies of
AMDS$DRIVER_ACCESS.DAT that are in the AMDS$SYSTEM directory because
the AMDS$SYSTEM logical is now a search list for SYS$COMMON:[AMDS] and
SYS$COMMON:[SYSMGR]. Copies of the files listed above from previous
versions of DECamds will still be valid; however, new copies of the
files will be placed in the new locations.
1.5 Event Log File and Lock Log File Enhanced
Prior to Version 7.2, the Event Log File and Lock Log File were created with a default creation size of 1 block and a default extension size of 1 block. This sometimes resulted in a very fragmented log file (and disk) when DECamds was allowed to run for a long period of time.
Beginning in Version 7.2, two new logicals in the AMDS$LOGICALS.COM file allow users to define additional sizes in log files; these logicals and their default values are shown in the following table:
Logical | Description | Default Value |
---|---|---|
AMDS$EVTLOG_ALLOC_SIZE | Sets the initial size of the log files | 100 blocks |
AMDS$EVTLOG_EXTNT_SIZE | Sets the extension size of a file when it needs to grow | 0 blocks |
The default value for AMDS$EVTLOG_EXTNT_SIZE causes DECamds to use the
system defaults for extent size.
1.6 Handling of Unknown Adapter Types Improved
Prior to Version 7.2, DECamds labeled an adapter that reported an
unknown RPORT value "UNKNOWN", but provided no other
information in the SCA Summary Window. Beginning with Version 7.2,
DECamds displays the value that a remote system returns for RPORT as
well as the "UNKNOWN" label.
1.7 Similar Groups Sorted Correctly
Prior to Version 7.2, if the first three characters of group names were
similar, DECamds sometimes did not sort them correctly. In OpenVMS
Version 7.2, the sorting algorithm has been corrected, and DECamds now
sorts group names correctly.
2 Problems and Restrictions
The following section describes DECamds restrictions.
2.1 Limit in Display of Multiple CPUs
DECamds currently displays only up to 8 CPUs on an SMP or Galaxy node
with multiple CPUs.
2.2 Kernel Threads Not Supported (Alpha Only)
DECamds support for kernel threads has not been implemented on OpenVMS
Alpha systems. If you use threaded processes, DECamds displays only the
top thread.
2.3 Version 6.1 Not Supported for the Data Analyzer
OpenVMS no longer supports DECamds Version 6.1. As a result, beginning with OpenVMS Version 7.2 of DECamds, you can no longer install DECamds Version 6.1 systems. You can, however, still monitor Version 6.1 systems.
If you must run the Data Analyzer from an OpenVMS Version 6.1 system, use an older version of DECamds. However, you will be unable to take advantage of new features that have been added to DECamds.
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