CH(4) - Device Drivers Manual # CH(4) - Device Drivers Manual
NAME # ch - SCSI media-changer (juke box) driver
SYNOPSIS # ch? at scsibus?
DESCRIPTION # The ch driver provides support for SCSI juke boxes. It allows many slots of media to be multiplexed between a number of drives.
A SCSI adapter and a logical scsibus must also be separately configured into the system before a SCSI changer can be configured.
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CHIO.CONF(5) - File Formats Manual # CHIO.CONF(5) - File Formats Manual
NAME # chio.conf - medium changer configuration file
DESCRIPTION # chio.conf is used to configure some aspects of chio(1), a medium changer.
The configuration file consists of a series of stanzas, one per changer, enclosed in curly braces. Empty lines and lines beginning with ‘#’ in either file are ignored.
The following aspects may be configured:
drive
Provides a non-default mapping between st(4) devices and changer drives.
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CHIO(1) - General Commands Manual # CHIO(1) - General Commands Manual
NAME # chio - medium changer control utility
SYNOPSIS # chio [-f changer] command [arg …]
DESCRIPTION # The chio utility is used to control the operation of medium changers, such as those found in tape and optical disk jukeboxes.
The options are as follows:
-f changer
Use the device changer rather than the default device /dev/ch0.
A medium changer apparatus is made up of elements.
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MT(1) - General Commands Manual # MT(1) - General Commands Manual
NAME # mt, eject - magnetic tape and removable media manipulating program
SYNOPSIS # mt [-f device] command [count]
eject [-t] device
DESCRIPTION # The mt utility sends commands to a magnetic tape drive. By default, mt performs the requested operation once. Operations may be performed multiple times by specifying count. Note that device must reference a raw (not block) tape device.
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ST(4) - Device Drivers Manual # ST(4) - Device Drivers Manual
NAME # st - SCSI tape driver
SYNOPSIS # st* at scsibus? #st0 at scsibus0 target 4 lun 0 (fixed-configuration example)
DESCRIPTION # The st driver provides support for SCSI tape drives.
SCSI devices have a relatively high level interface and talk to the system via a SCSI adapter and a SCSI adapter driver e.g. ahc(4). The SCSI adapter must be separately configured into the system before a SCSI tape can be configured.
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