1 .\" $NetBSD: chio.1,v 1.4 1997/10/02 00:41:25 hubertf Exp $
3 .\" Copyright (c) 1996 Jason R. Thorpe <thorpej@and.com>
4 .\" All rights reserved.
6 .\" Redistribution and use in source and binary forms, with or without
7 .\" modification, are permitted provided that the following conditions
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14 .\" 3. All advertising materials mentioning features or use of this software
15 .\" must display the following acknowledgements:
16 .\" This product includes software developed by Jason R. Thorpe
17 .\" for And Communications, http://www.and.com/
18 .\" 4. The name of the author may not be used to endorse or promote products
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33 .\" $FreeBSD: src/bin/chio/chio.1,v 1.10.2.8 2003/05/16 22:43:15 keramida Exp $
40 .Nd medium changer control utility
52 utility is used to control the operation of medium changers, such as those
53 found in tape and optical disk jukeboxes.
55 The options are as follows:
56 .Bl -tag -width indent
60 rather than the default device
64 The default changer may be overridden by setting the environment variable
66 to the desired changer device.
68 A medium changer apparatus is made up of
70 There are five element types:
80 (select by volume identifier). The
82 pseudo-element type allows the selection of tapes by their volume tag
83 (typically a barcode on the tape).
85 In this command description, the shorthand
87 will be used to represent an element type, and
89 will be used to represent an element unit.
90 For example, to represent the first robotic arm in the changer, the
98 .Sh SUPPORTED COMMANDS
99 .Bl -tag -width indent
101 .Ar <from ET> <from EU> <to ET> <to EU>
104 Move the media unit from
108 If the optional modifier
110 is specified, the media unit will be inverted before insertion.
112 .Ar <src ET> <src EU> <dst1 ET> <dst1 EU>
113 .Op Ar <dst2 ET> <dst2 ET>
117 Perform a media unit exchange operation. The media unit in
121 and the media unit previously in
125 In the case of a simple exchange,
127 is omitted and the values
129 are used in their place.
130 The optional modifiers
134 specify whether the media units are to be inverted before insertion into
140 Note that not all medium changers support the
142 operation; the changer must have multiple free pickers or emulate
143 multiple free pickers with transient storage.
145 .Ar <from ET> <from EU>
147 Return the media unit to its source element.
148 This command will query the status of the specified media unit, and
149 will move it to the element specified in its source attribute.
150 This is a convenient way to return media from a drive or portal
151 to its previous element in the changer.
156 Position the picker in front of the element described by
158 If the optional modifier
160 is specified, the media unit will be inverted before insertion.
162 Note that not all changers behave as expected when issued this command.
164 Report the number of slots, drives, pickers, and portals in the changer,
165 and which picker unit the changer is currently configured to use.
167 Report which picker unit the changer is currently configured to use.
171 Configure the changer to use picker
177 .Em INITIALIZE ELEMENT STATUS
178 operation on the changer. The optional
180 parameter may be given to specify a timeout in seconds for the
181 operations. This may be used if the operation takes unusually long
182 because of buggy firmware or the like.
190 Change volume tag for an element in the media changer. This command
191 is only supported by few media changers. If it is not supported by a
192 device, using this command will usually result in an
193 .Dq Invalid Field in CDB
194 error message on the console.
198 flag is specified, the volume tag of the specified element is
201 flag is specified, the volume tag is superseded with the specified
202 volume tag even if a volume tag is already defined for the element.
203 It is an error to not specify the
205 flag when trying to set a label for an element which already has
206 volume tag information defined.
208 The command works with the primary volume tag or, if the
210 flag is given, with the alternate volume tag.
215 Report the status of all elements in the changer. If
217 is specified, report the status of all elements of type
220 Print the primary volume tag for each loaded medium, if any. The volume
224 Print the alternate volume tag for each loaded medium, if any.
226 Print the additional sense code and additional sense code qualifier for
229 Print the element source address for each element.
231 Print SCSI bus information for each element. Note that this information
232 is valid only for drives.
234 Print the internal element addresses for each element. The internal
235 element address is not normally used with this driver. It is reported
236 for diagnostic purposes only.
238 Print all additional information (as in
242 The status bits are defined as follows:
243 .Bl -tag -width indent
245 Element contains a media unit.
247 Media was deposited into element by an outside human operator.
249 Element is in an abnormal state.
251 Media in this element is accessible by a picker.
253 Element supports passing media (exporting) to an outside human operator.
255 Element supports receiving media (importing) from an outside human operator.
258 .Bl -tag -width /dev/ch0 -compact
260 default changer device
263 .Bl -tag -width indent
264 .It Li chio move slot 3 drive 0
265 Move the media in slot 3 (fourth slot) to drive 0 (first drive).
266 .It Li chio move voltag VOLUME01 drive 0
267 Move the media with the barcode VOLUME01 to drive 0 (first drive).
268 .It Li chio return drive 0
269 Remove the tape from drive 0 (first drive) and return it to its original
270 location in the rack.
271 .It Li chio setpicker 2
272 Configure the changer to use picker 2 (third picker) for operations.
281 program and SCSI changer driver were written by
282 .An Jason R. Thorpe Aq Mt thorpej@and.com
283 for And Communications,
284 .Pa http://www.and.com/ .
287 .An Hans Huebner Aq Mt hans@artcom.de
289 .An Steve Gunn Aq Mt csg@waterspout.com .