ISO/IEC INTERNATIONAL STANDARD 14776-351 First edition 2007-01 Information technology - Small computer system interface-3 (scsl-3) - Part 351: Medium changer commands (SMC) IEC ISO Referencenumber ISO/IEC 14776-351:2007(E) ISO/IEC INTERNATIONAL STANDARD 14776-351 First edition 2007-01 Information technology Small computer system interface-3 (scsl-3) - Part 351: Medium changer commands (SMC) Copyright@2007ISO/IEC,Geneva All rights reserved mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varembe, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11Telefax: +41 22 919 03 00E-mail: [email protected]: www.iec.ch EC PRICECODE T ISO Forprice, see current catalogue - 2 - 14776-351@ISO/IEC:2007(E) CONTENTS FOREWORD.. INTRODUCTION Scope... .8 1 2 Normative References. 3 Definitions, symbols and abbreviations.. 3.1 Definitions .8 3.2 Symbols and abbreviations 13 3.3 Keywords. 13 3.4 Conventions 14 4 Overview .14 Medium changer models. 5 16 5.1 Independent medium changer... 16 5.2 Attached medium changer 16 5.3 Medium changer elements ... 16 5.4 Medium transport element... 17 5.5 Storage element .... 18 5.6 Import/export element..... .18 5.7 Data transfer element .... 5.8 Element status maintenance requirements .. 18 5.9 Volume tag information... 5.10 Primary and alternate volume tag information 19 19 5.11 Volume tag information format. 6 Commands for medium changer logical units 21 6.1 Commands for independent medium changers 6.2 Commands forattachedmediumchangers .22 6.3 EXCHANGEMEDIUM command.. .22 6.4 INITIALIZE ELEMENT STATUS command.. .24 .25 6.5 MOVE MEDIUM command.. 6.6 POSITION TO ELEMENT command. .26 6.7 READ ELEMENT STATUS command. ..27 6.7.0 General .... 6.7.1 Element status data . 6.7.2 Elementstatuspage .29 6.7.3 Medium transport element descriptor. .30 6.7.4 Storage element descriptor ..32 6.7.5 Import/export element descriptor .33 6.7.6 Data transfer elementdescriptor .35 6.7.7 Identification descriptor. .36 6.8 RELEASEELEMENT (6)command 6.8.0 General. 6.8.1 Logical unit release (mandatory) 6.8.2 Elementrelease (optional) 6.9 RELEASEELEMENT(10)command. - 3 - 14776-351@ISO/IEC:2007(E) 6.9.1 RELEASE ELEMENT(10) overview. .37 6.9.2 Third-party release (Mandatory) .38 6.10REQUESTVOLUMEELEMENTADDRESScommand .39 6.11RESERVEELEMENT(6)command .41 6.11.0 General . 6.11.1 Logical unit reservation (mandatory). ..42 6.11.2 Elementreservation (optional). 6.12RESERVEELEMENT(10)command ..43 6.12.0 General ... .43 6.12.1 Third-party reservation (mandatory) .44 6.12.2 Superseding reservations... 6.13SENDVOLUMETAG command... .45 Parameters.. .48 7.0 General .48 7.1 Diagnostic parameters 7.2 Logparameters .48 7.3 Mode parameters.... .48 7.3.0 General. ...48 7.3.1 Device capabilities page.... 7.3.2 Element address assignment page.... 7.3.3 Transportgeometryparameterspage. Bibliography .. .54 Figure1-General structure of ScSI standards 6 Figure 2-Example independent medium changerdevice 14776-351@ISO/IEC:2007(E) Table 1 - Volume tag information format . .20 Table2-Commandsfor independentmedium changers. ..21 Table 3 - Commands for attached medium changers ..22 Table4-EXCHANGEMEDIUMcommand. ...23 Table 5-INITIALIZE ELEMENTSTATUS command .24 Table6-MOVEMEDIUMcommand.. ...25 Table7-POSITIONTOELEMENT command.. ...26 Table8-READELEMENTSTATUScommand. Table 9- Element type code .. .28 Table10-Element status data ...28 Table 11 - Element status page . Table12-Medium transport element descriptor... ...30 Table13-Storage element descriptor. ..32 Table 14 - Import/export element descriptor.. Table 15-Data transfer element descriptor. .35 Table 16 - Identification descriptor fields.. .36 Table 17-RELEASE ELEMENT (6) command.. ...37. Table18-RELEASEELEMENT(10)command. Table19-RELEASEELEMENT(10)parameter list. ...39 Table20-REQUESTVOLUMEELEMENTADDRESScommand. ...40 Table 21-Volume element address header 41 Table22-RESERVEELEMENT(6)comma