Maxc Operationsby Edward R. Fiala, Charles M. Geschke, and Edward TaftMaxc Document 18.7January 30, 1981This document describes many of the commonly used procedures for Maxc operation, as well as anumber of uncommon procedures used during system debugging and maintenance. This isintended primarily as a reference document for system personnel. However, in the absence ofsystem personnel, any user should be able to restart Maxc from a Tenex crash using the procedureoutlined in Section 2.XEROXPALO ALTO RESEARCH CENTER3333 Coyote Hill Road / Palo Alto / California 94304 Qp J#qX7 Cc A 9,1 7T 6A 4:!? 2p$"r$ qX$HsF4> =4PMaxc OperationsTable of ContentsiSectionPage1.Introduction11.1Overview of the Maxc System11.2A Word on Terminals and Consoles22.Tenex Crashes43.Power Up134.Power Down145.Loading the PDP-10 Emulator166.Starting Tenex177.Stopping Tenex188.NVIO and ODT208.1.Calling NVIO208.2.ODT Commands218.3.Nova Locations of Interest238.4.NVIO Punts249.AltIO259.1.Calling AltIO259.2.AltIO Commands2610.Maxc1 Midas Operation2910.1.Conventions2910.2.Commands3010.3Special Information3111.Maxc2 Midas Operation3311.1.Starting Midas3311.2.Midas Display3311.3.Midas Command Menu3411.4.Keyboard3611.5.Command Files3711.6.Loading Programs3911.7.Dumping Microprograms4011.8.Tenex Microcode4011.9.Power On-Off4011.10.Testing Through the Maintenance Interface4212.Operating Tenex Microcode from Midas4413.Interpreting Checker Failures46 fti:uX H)t_vA [q CY CX C T C Q+B` M B` JGB` F B` Cc B` ? B`>& B`<\ B`: B`8 B` 5UB`3 B`1 B` .MB`, B`* B`( B` %|B`# B`! B`  B`Q B` B` B` B`' B`\ B` )B`  $B` B`* g98[Table of ContentsMaxc Operationsii14.Using Micro-Exec4714.1.Tenex Disk Structure4714.2.Micro-Exec Command Descriptions4814.3.Micro-Exec Command Summary5315.DMPLD5515.1.DMPLD Operation5515.2.Required Format for Standalone PDP-10 Programs5616.Hardware Diagnostic and Maintenance Procedures5716.1.Running Microprocessor Diagnostics5716.2.Running PDP-10 Diagnostics5916.3.Memory Maintenance6116.4.Disk Maintenance6316.5.TM6416.6.MemBash6516.7.SMIDiag6516.8.AITest6516.9.TR6517.Writing a New 10SYS Tape6818.Recovery from Checkdsk Errors6919.Bsys Operation7219.1.Backup Procedures7219.2.Incremental Dumps7319.3.Full Dumps7419.4.Full Backup to Tape7619.5.Continuing Interrupted Dumps7619.6.Restoring Files from Backup7619.7.Restoring the Entire File System7719.8.Archive Procedures7819.9.Organization of the Archive Tapes7919.10.Archiving Files to Tape7919.11.Retrieving Files from Tape8120.Loading the Nova Disk8221.Contents of the Nova/Alto Disk8322.Software Maintenance Procedures8522.1.Midas8522.2.NVIO8522.3.AltIO8622.4.TM, MemBash, SMIDiag, Alto Microcode8622.5.Tenex and Diagnostic Microcode8622.6.Tenex86)fuX;ti  _qXB`]K B`[ B`Y B` VDB`Ty B`R .B` O=.B`Mr "B`K B`I B`H B`FH B`D} B`B B`@ B`? B` ;B` 89B` 4 B`2 B`12 B`/h B`- B`+ B`* B`(= B`&s B`$ !B`" B`! B` B` /B` B` B`( B`] B` $B`  B`  B`R <\UIMaxc OperationsTable of Contentsiii23.Local Memory Chip Charts8824.Creating and Destroying Maxc Accounts8924.1.Obtaining a Maxc Account8924.2.General Information About Maxc Directories8924.3.The EcCREATE AND EcPRINT Commands9324.4.Creating a Maxc Directory9624.5Editing the Grapevine Data Base9924.6.Changing the Password and Other Modifications to Directories10024.7.Destroying a Maxc Account10124.8.Operations on MESSAGE.TXT Files10324.9.Reinstantiating a Destroyed Directory10424.10.Retrieving Archived Files for Defunct Directories10424.11.Printing Accounting Information10525.Appendix10625.1.Files Comprising this document10625.2.Changing and Printing this document107Figure 1(Old Bipolar Card Chip Changing Map ~ Maxc 1 only)110Figure 2(Old Bipolar Card Chip Changing Map ~ Maxc 2 only)111Figure 3(New Bipolar Card Chip Changing Map)112Figure 4(MAXC Computer Memory Board Location)113Figure 5(MAXC Memory Board Chip Location)114Figure 6(Files-only account protection guide)115Figure 7(Application for MAXC Files-Only Directory)116Figure 8(Application for MAXC Login / IVY Directory [XeroxPalo Alto employees only])117Figure 9(Application for MAXC Login Directory [Non-Xerox andXerox employees not at PARC or Palo Alto SDD/SD])118 fti:uX G=t _qB` [%B`Y B`X *B`V! VV! VV! B`TV B`R B`P