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asemgr(8)
NAME
asemgr - Administers an available server environment (ASE) (provided on
Production Server and Available Server configurations only)
SYNOPSIS
/usr/sbin/asemgr [-options]
OPTIONS
-d Displays various items of an ASE's configuration and status when used
in combination with the following suboptions:
-h [member]
Displays the host and agent status of all ASE member systems or, if
member is specified, a particular ASE member.
-v [service]
Displays the status of all services in the ASE or, if service is
specified, a particular ASE service.
-l Displays the level of ASE logging that is enabled and the name of
the member system that is running the ASE logger daemon.
-C [asecdb]
Displays, in ASCII format, the contents of the running ASE database
or, if asecdb is specified, a particular ASE database. You must
specify a fully qualified pathname for the asecdb parameter (such
as /var/ase/config/asecdb.save).
-c [service-name]
Displays, in ASCII format, configuration details of all ASE
services or, if service is specified, a particular ASE service.
If no suboptions are specified, the -d option displays all member,
service, and logger status (as if -h, -v, and -l were specified).
-f filename
Uses stanza(4) entries in the service configuration file specified by
filename to add a highly available disk, DRD, NFS, tape, or user-
defined service.
Create a service configuration file by copying one or more service
configuration file templates to filename. Each template provides all
the attributes necessary to define one type of ASE service. Modify the
values provided in the template to define the resources for the
service.
The service configuration file templates are located in the
/var/ase/examples_supported directory.
-m service member
Relocates the specified service to a specified member system in the
same ASE. When you relocate a service, you stop the service on the ASE
member currently running the service and start that service on another
member.
-r service . . .
Restarts the specified service.
-H Displays a list of systems that are members of the ASE. The asemgr
utility supports this option only when the ASE is within a TruCluster
Production Server configuration.
-L Displays a list of distributed raw disk (DRD) services within the ASE.
The asemgr utility supports this option only when the ASE is within a
TruCluster Production Server configuration.
-N drdnumber
Displays the ASE service name corresponding to the specified DRD
service number. This option returns the ASE service name only for a
DRD service that consists of a single underlying physical device. It
displays nothing if the indicated DRD service does not exist or if it
consists of multiple underlying devices.
The asemgr utility supports this option only when the ASE is within a
TruCluster Production Server configuration.
-s service [member]
Starts the specified service and puts it on line. If member is
specified, the service is started on that member.
-x service
Stops the specified service and puts it off line.
-O Displays the member system's operating version.
-V Displays the member system's installed version.
DESCRIPTION
The ASE manager utility is an interactive facility that allows you to
administer an ASE. This includes setting up the member systems that will
run your applications; configuring the ASE services, which include
application software and disk specifications if necessary; and managing the
members and services.
An ASE enables you to make your applications highly available in a network
environment. It can significantly reduce down time due to hardware or
software failures. Many applications that must run on one system at a time
can be made highly available.
An ASE provides multihost access to SCSI disks and a generic failover
mechanism. A set of daemons monitors the health of the member systems in
the ASE, and an infrastructure is provided that moves applications from one
member to another in the event of failure. In addition, system managers
can relocate applications from one member to another. This enables you to
prepare for planned shutdowns and to balance the application load across
the ASE.
If you enter the asemgr command with no options, it displays menus and task
items and prompts you for information about the task you want to perform.
FILES
/var/ase/examples_supported/disk_config_template
/var/ase/examples_supported/drd_config_template
/var/ase/examples_supported/nfs_config_template
/var/ase/examples_supported/tape_config_template
/var/ase/examples_supported/user_config_template
SEE ALSO
TruCluster Software Products Administration
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Index for Section 8 |
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Alphabetical listing for A |
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Top of page |
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