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| Document revision date: 19 July 1999 | |
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The Sort, Filter, and collection interval settings at the data window level affect performance. Follow these guidelines to balance customization with performance:
Changing several system settings might improve the performance of
DECamds on your system. The following sections discuss these settings
and how to change them.
5.5.2.1 Setting Data Link Read Operations
Increase read operations to the data link by changing the logical name AMDS$COMM_READS in the AMDS$CONFIG:AMDS$LOGICALS.COM command procedure. The AMDS$COMM_READS logical name controls the number of requests for data (read operations) queued to the data link.
If you increase data collection, increase the number of requests that
can be queued. Digital recommends two requests for each node being
monitored. Each read operation queued requires 1500 bytes of BYTLM
quota.
5.5.2.2 Setting the Communications Buffer
Increase the communications buffer by changing the logical name AMDS$COMM_BUFFER_SIZE in the AMDS$CONFIG:AMDS$LOGICALS.COM command procedure. The buffer controls the size of the global section used for communication between the collector node and the communications process.
When DECamds cannot keep up, it displays the following warning message:
AMDS$_COMMBUFOVF---communications buffer overflow. Increase the buffer by 25 percent. |
In addition to increasing the value of the AMDS$COMM_BUFFER_SIZE logical name, set the system parameter GBLPAGFIL on the collector node to cover the increase. This adds to the amount of data collection that DECamds can perform.
The value of the GBLPAGFIL system parameter must always be higher than the number of FREE_GBLPAGES. To determine the value of FREE_GBLPAGES, enter the following commands:
$ A = F$GETSYI("FREE_GBLPAGES")
$ SHO SYM A
|
The value of A must conform to the following formula:
2 * ( (buffer_size / 512) + 512) |
Table 5-7 provides an approximate guideline for the number of nodes you can monitor when running DECamds on certain computer types.
| Monitoring Computer Type | Number of Nodes Monitored | |
|---|---|---|
| Observation Only | Observe and Fix | |
| VAXstation 3100 | 0-30 | 0-20 |
| VAXstation 4000 Model 60 | 20-60 | 20-50 |
| VAX 6000 1 | 75-150 | 65-130 |
| VAX 4000 Model 90 | 75-150 | 65-130 |
| DEC 3000 Model 400 | 0-50 | 0-50 |
| DEC 4000 Model 620 | 0-70 | 0-70 |
| DEC 7000 Model 720 | Any number | Any number |
Follow these suggestions when choosing and configuring a console:
This appendix explains how to install DECamds software on OpenVMS Alpha
and VAX systems.
A.1 Preparing to Install DECamds
This section describes the preparations and requirements necessary for installing DECamds.
DECamds provides online release notes. Digital strongly recommends that you read the release notes before proceeding with the installation. You can print the text file of the release notes from the following location:
SYS$HELP:AMDS071.RELEASE_NOTES |
The DECamds kit has two components:
For OpenVMS Alpha systems, use the POLYCENTER Software Installation Utility to install the DEC-AXPVMS-AMDS-V0710--1.PCSI kit on the software distribution compact disk. Section A.4 describes the installation procedure on Alpha systems.
For OpenVMS VAX systems, install the AMDS071.A and AMDS071.B save sets using the VMSINSTAL procedure.
The DECamds VAX kits are on the following media:
| Magnetic tape | Third volume |
| TK50 tape | Second volume |
| Compact disk | [AMDS071] directory |
Section A.5 describes the installation procedure on VAX systems.
A.3 Installation Requirements
This section provides a checklist of hardware and software requirements
for DECamds. A typical installation takes approximately 5 to 10 minutes
per node, depending on the type of media and your system configuration.
| Number of Monitored Nodes | Recommended Alpha Hardware | Recommended VAX Hardware |
|---|---|---|
| 1-30 | DEC 3000 Model 400, 32 MB | VAXstation 3100, 16 MB |
| 20-50 | DEC 3000 Model 400, 64 MB | VAXstation 4000 Model 60 |
| 40-90 | DEC 3000 Model 500 | VAXstation 4000 Model 90 |
| 91 or more | DEC 4000 Model 620 | VAX 6000-420 |
| Operation | Privileges Needed |
|---|---|
| Monitor only (read-only access) | OPER |
| Implement fixes (write access) | OPER, CMKRNL |
| Stop, start, reload, or restart the Data Provider node. Includes changing security or group name. | OPER, CMKRNL, LOG_IO, SYSNAM, SYSPRV |
For OpenVMS VAX Version 6.1 and later or OpenVMS AXP Version 6.1 and later, if the Data Provider is running on the same node as the Data Analyzer node, you must also have either SYSPRV privilege or ACL access to the RMA0: device. |
$ SHOW DEVICE SYS$SYSDEVICE |
| GLBPAGFIL | 1200 |
| WSMAX | 16384 |
| ASTLM 1 | 150 |
| BIOLM 1 | 51 |
| BYTLM 1 | 75000 |
| FILLM | 20 |
| PRCLM | 3 |
| PGFLQUO | 25600 |
| TQELM 1 | 100 |
| WSEXTENT | 16384 |
On both Alpha and VAX systems, Digital recommends that you perform a system disk backup before installing any software. Use the backup procedures that are established at your site. For details about performing a system disk backup, see the OpenVMS Backup utility documentation. |
This section describes the installation procedure on an OpenVMS Alpha system.
$ PRODUCT INSTALL AMDS/SOURCE=device directory/HELP |
Percent Done: 15% ...30% ...46% ...62% ...76% ...92% %PCSI-I-SUCCESS, operation completed successfully |
%POLYCENTER Software Installation utility %INSTAL-E-INSFAIL, The installation of DECamds 7.1 has failed. |
Sample Installation on an OpenVMS Alpha System
Example A-1 shows a sample installation on an OpenVMS Alpha system. This sample was run on a system that had no previous version of DECamds installed. Depending on which layered products you have on your system, you might see additional messages and questions when you perform your installation.
| Example A-1 Sample OpenVMS Alpha Installation | |||
|---|---|---|---|
$ PRODUCT INSTALL AMDS/SOURCE=DAD15:[AMDS071.KIT]
The following product has been selected:
DEC AXPVMS AMDS V7.1 Layered Product [Installed]
Do you want to continue? [YES]
DEC AXPVMS AMDS V7.1: DECamds (Availability Manager for Distributed Systems) V7.1
COPYRIGHT © (c) 1994, 1995, 1996 -- All rights reserved
Digital Equipment Corporation
Do you want the defaults for all product options? [YES]
DECamds Startup File
DECamds Message Help
DECamds Logicals Customization File
DECamds Data Provider Security Access File
DECamds Data Provider Installation Verification Procedure
DECamds Data Analyzer Security Access File
DECamds Data Analyzer Installation Verification Procedure (IVP)
IVP may fail due to the following PQL values being too low:
PQL_MASTLM, PQL_MBIOLM, PQL_MTQELM, or PQL_MBYTLM See the file
AMDS$SYSTEM:AMDS$PCSI_IVP_OUTPUT.LOG for help on failure.
Do you want to view the options? [NO]
Execution phase starting ...
The following product will be installed:
DEC AXPVMS AMDS V7.1 Layered Product
Portion done: 0%...30%...40%...50%...60%...70%...80%...90%...100%
The following product has been installed:
DEC AXPVMS AMDS V7.1 Layered Product
%PCSI-I-IVPEXECUTE, test procedure executing ...
%PCSI-I-IVPSUCCESS, test procedure completed successfully
DEC AXPVMS AMDS V7.1: DECamds (Availability Manager for Distributed Systems) V7.1
This product requires the following SYSGEN parameters:
GBLPAGES add 1172
|
A.5 OpenVMS VAX System Installation
The DECamds installation procedure consists of a series of questions
and informational messages. See Example A-2 for a sample
installation. The actual installation should take only a few minutes,
but depending on your installation media, this time could be longer.
To abort the installation procedure at any time, press Ctrl/Y. When you press Ctrl/Y, the installation procedure deletes all files it has created up to that point and exits. You can then start the installation again.
To install DECamds:
@SYS$UPDATE:VMSINSTAL AMDS071 Device-name OPTIONS N |
%VMSINSTAL-W-DECNET, Your DECnet network is up and running. . . . * Do you want to continue anyway [NO]? |
* Are you satisfied with the backup of your system disk [YES]? |
Please mount the first volume of the set on MTA0:. |
* Are you ready? YES |
%MOUNT-I-MOUNTED, AMDS MOUNTED ON _MTA0: (NODE 1)
The following products will be processed:
DECamds V7.1
Beginning installation of DECamds
V7.1 at 10:43
%VMSINSTAL-I-RESTORE, Restoring product saveset A...
|
Release notes included with this kit are copied to SYS$HELP. Additional Release Notes Options: 1. Display release notes 2. Print release notes 3. Both 1 and 2 4. None of the above * Select option [2]: |
$ HELP DECamds RELEASE_NOTES |
The name of the release notes file installed by VMSINSTAL consists of the current product name and version number. Do not delete release notes for previous versions of DECamds. |
You now have the choice to install either the DECamds Data Analyzer, or the DECamds Data Provider, or both on this system. * Would you like to install the DECamds Data Analyzer on this system [Y]? * Would you like to install the DECamds Data Provider on this system [Y]? |
The Help Message utility (MSGHLP) provides online explanations and user actions for OpenVMS messages. The MSGHLP database, DECAMDS.MSGHLP$DATA, consumes approximately 200 blocks and will be placed by default on your system disk in SYS$COMMON:[SYSHLP]. Refer to the OpenVMS System Messages: Companion Guide for Help Message Users and the OpenVMS System Manager manual for instruction on how to add the DECamds Help Message database to your system. * Would you like to install the MSGHLP database for DECamds [Y]? |
* Do you want to run the IVP after the installation [YES]? |
* Do you want to purge files replaced by this installation [YES]? |
Sample Installation on an OpenVMS VAX System
Example A-2 shows a sample installation on an OpenVMS VAX system and assumes that DECnet has been shut down, that no users are logged on to your system, and that OPTIONS N is specified to print the release notes. The Installation Verification Procedure (IVP) runs at the end of the installation.
This sample was run on a system that had no previous version of DECamds installed. Depending on which layered products you have on your system, you might see additional messages and questions when you perform your installation.
| Example A-2 Sample OpenVMS VAX Installation | |||
|---|---|---|---|
$ @VMSINSTAL AMDS071 SYS$UPDATE
VAX/VMS Software Product Installation Procedure V7.1
It is 27-JAN-1996 at 15:13.
Enter a question mark (?) at any time for help.
* Are you satisfied with the backup of your system disk [YES]?
The following products will be processed:
AMDS V7.1
Beginning installation of AMDS V7.1 at 15:14
%VMSINSTAL-I-RESTORE, Restoring product save set A ...
%VMSINSTAL-I-RELMOVED, Product's release notes have been moved to SYS$HELP.
Copyright (c) 1996 Digital Equipment Corporation. All rights reserved.
Beginning the installation of DECamds V7.1.
%AMDS-I-VERINSTAL, Installing DECamds on an OpenVMS VAX V7 system
You now may choose to install the DECamds Data Analyzer. The
Data Analyzer must be installed on a system in which at least
* Would you like to install the DECamds Data Analyzer on this system [Y]?
* Do you want to run the IVP after the installation [YES]?
* Do you want to purge files replaced by this installation [YES]?
No further questions will be asked during the installation.
This installation will take approximately 5-10 minutes to complete.
%VMSINSTAL-I-RESTORE, Restoring product save set B ...
The DECamds startup file (AMDS$STARTUP.COM) is being copied to the
SYS$STARTUP directory. Digital recommends you include this file in
your site specific startup procedures as follows:
@SYS$STARTUP:AMDS$STARTUP START
The command procedure AMDS$LOGICALS.COM was already found in the
SYS$COMMON:[AMDS] directory. This installation will provide an
AMDS$LOGICALS.TEMPLATE file instead of the AMDS$LOGICALS.COM file.
Please check the new .TEMPLATE file and add any changes to your
current AMDS$LOGICALS.COM file.
The file SYS$COMMON:[AMDS]AMDS$CONSOLE_ACCESS.DAT already exists. This
installation will provide a AMDS$CONSOLE_ACCESS.TEMPLATE file instead
of the AMDS$CONSOLE_ACCESS.DAT file to avoid superceding a version of
the file you may currently be using.
The installation will now provide the DECamds customization files.
If this installation finds one of the customization files already
residing in the installation directory, then the installation will
provide a .TEMPLATE file instead of the .DAT file. It will be left
up to the installer to check the AMDS$SYSTEM directory for any
differences between the .DAT and .TEMPLATE files.
The installation procedure will provide a .TEMPLATE file for the
following customization files found in the AMDS$SYSTEM directory:
AMDS$APPLIC_CUSTOMIZE.DAT
AMDS$SEVERITY_DEFS.DAT
AMDS$OCCURRENCE_DEFS.DAT
AMDS$THRESHOLD_DEFS.DAT
AMDS$INTERVAL_DEFS.DAT
AMDS$FILTER_DEFS.DAT
AMDS$SORT_DEFS.DAT
AMDS$GEOMETRY_DEFS.DAT
The file SYS$COMMON:[AMDS]AMDS$DRIVER_ACCESS.DAT already exists. This
installation will provide a AMDS$DRIVER_ACCESS.TEMPLATE file instead
of the AMDS$DRIVER_ACCESS.DAT file to avoid superceding a version of
the file you may currently be using.
DECamds installation V7.1 is complete.
%VMSINSTAL-I-MOVEFILES, Files will now be moved to their target directories...
%AMDS-I-NODRIVER, data collection not started, only define AMDS$SYSTEM
DECamds V7.1 Installation Verification Procedure (IVP) Beginning.
Copyright © Digital Equipment Corporation 1996.
All Rights Reserved.
This IVP will check following pieces of DECamds:
DATA PROVIDER - RMDRIVER
DATA ANALYZER - AMDS$CONSOLE and AMDS$COMM
Before running this IVP, any process currently running the DECamds
Data Analyzer on this machine must be stopped. The IVP will now
check for the existence of the AMDS$COMM process which indicates
that someone is currently running the Data Analyzer.
AMDSIVP-I-RMRELOAD, reloading with new data provider for IVP to use
Copyright (c) 1996 Digital Equipment Corporation. All rights reserved.
%AMDS-I-RMSHUT, stopping RMDRIVER processing for this node
%AMDS-S-RMSUCCESS, RMDRIVER shutdown successful
Copyright (c) 1996 Digital Equipment Corporation. All rights reserved.
%AMDS-I-RMSTART, starting RMDRIVER processing for this node
%AMDS-I-LOADSECDB, loading security database
%AMDS-S-RMSUCCESS, RMDRIVER startup successful
You currently do not have a DECwindows display to direct the Data
Analyzer output towards. You are now given the option to continue
and allow the IVP to create a display for you or exit and either
create your own display or run the IVP from a workstation.
Would you like to continue? [Y/N]Y
You have chosen to let the IVP create a DECwindows display.
You will be prompted for a node to direct the display towards.
Specify a valid node on which you are allowed to create a display
from your current node. This procedure does not check the
validity of the remote node you specify.
Nodename to direct the display towards: AMDS
%DCL-S-SPAWNED, process AMDS$IVP_CONS spawned
Waiting 5 minutes to allow the DECamds Data Analyzer to run.
You should see the Event Log and System Overview windows appear
on your DECwindows display device.
AMDSIVP-S-ALLPASS, DECamds has passed the IVP
DECamds V7.1 Installation Verification Procedure Complete
Installation of AMDS V7.1 completed at 15:23
VMSINSTAL procedure done at 15:23
$ LOG
SYSTEM logged out at 27-JAN-1996 15:23:53.60
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