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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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