Chapter 1. Introduction

Chapter 1. Introduction
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This guide describes key Tape Management Facility (TMF) administration tasks and provides information on performing them. It covers configuration, administration, and troubleshooting.

It documents the following administrative topics:

TMF, tape interfaces, and the TMF administration commands
Sample TMF configuration file, FLEXlm license file editing, and statement rules and syntax
Tape libraries, the message daemon and operator interface, TMF startup, dumping to tape, and OpenVault usage
Tape troubleshooting
Names of TMF man pages and information on accessing them
tmf.config(5) man page

1.1. Interfaces

Users can access tapes attached to an IRIX system by one of two interfaces: TMF, which is described in this manual, and the character-special tape interface (tpsc). For more information, see the tpsc(7M) man page. This manual describes TMF.

1.2. Administration Commands

This section briefly describes the TMF administration commands. For more information, see the individual man pages. Appendix A, “Man Page List”, contains information on accessing these pages.

`msgd(8)`		The `msgd(8)` command allows the operator to display action messages, such as tape mount messages.
`msgdaemon(8)`		The `msgdaemon(8)` command starts the message daemon, which handles the communication between users and operators.
`msgdstop(8)`		The `msgdstop(8)` command causes the message daemon to stop executing.
`newmsglog(8)`		The `newmsglog(8)` command saves the latest versions of the message log file.
`oper(8)`		The `oper(8)` command displays action messages and runs other commands as refresh displays.
`rep(8)`		The `rep(8)` command allows the operator to respond to action messages, such as tape mount messages.
`tmclr(8)`		The `tmclr(8)` command clears a tape stream. All tables and data associated with that device are cleared, if possible.
`tmcollect(8)`		The `tmcollect(8)` command collects information for TMF problem analysis.
`tmconf(8)`		The `tmconf(8)` command verifies the TMF configuration file.
`tmconfig(8)`		The `tmconfig(8)` command configures tape devices up and down, changes the status of the associated media loaders, assigns a media loader to a device, and reassigns a device group to a device.
`tmdaemon(8)`		The `tmdaemon(8)` command starts TMF. It provides the routing and control of the various components used in tape resource management, device management, volume mounts and dismounts through operator communication or library requests, label processing, volume switching, and error recovery.
`tmfrls(8)`		The `tmfrls(8)` command lets the operator release the tape reservations made by a user.
`tmgstat(8)`		The `tmgstat(8)` command displays the reservation status for each device group in the system for each tape user.
`tmlabel(8)`		The `tmlabel(8)` command labels tapes and may perform other functions depending on the interface being used.
`tmmls(8)`		The `tmmls(8)` command displays the status of the tape loaders in the system.
`tmmql(8)`		The `tmmql(8)` command displays the current mount request list for all users who have completed initial mount processing and have a mount request pending.
`tmset(8)`		The `tmset(8)` command sets features for TMF. It changes the status of automatic volume recognition (AVR), front-end servicing (FES), the status of tracing for TMF, or the destination of tape operator messages issued by TMF. All of these features can be set in the TMF configuration file.
`tmstop(8)`		The `tmstop(8)` command stops TMF, which terminates in an orderly fashion.
`tmunld(8)`		The `tmunld(8)` command is used by the system operator to unload tapes. This command has no effect on a tape that is currently in use.

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