02/27/85 reload Syntax as a command: reload {-control_args} Function: reloads the entire storage system from a hierarchy dump tape. It deletes segments and directories from the hierarchy that were not present when the hierarchy dump tape was made, and replaces existing segments and directories with their counterparts from the tape. However, to avoid destroying useful information, it does not delete directories, and it does not replace segments and directories in the hierarchy that were modified after the time at which they were dumped to tape. The reload command calls the backup_load command to do the actual reloading. The reload command places its map in the directory >reload_dir (to which the process must have sma access), and automatically dprints it. Quota on the reloaded directories is force-set to that specified on the hierarchy dump tape. The reload command is one of the commands used for hierarchy reloading and retrieving of storage system segments and directories. The other commands are: backup_load reload (initializer command) reload_system_release retrieve Do not confuse this reload command, which is a Multics command, with the reload initializer command. You should note that argument processing for all of the hierarchy backup commands is performed by a common argument processing procedure. The values of all arguments are remembered in static storage and remain in effect for the life of the process, unless changed by arguments given in subsequent invocations of backup commands. It should also be noted that the dumping commands and the reloading/retrieving commands are all part of the same hierarchy backup system, and argument values set by the dumping commands remain in effect for the reloading/retrieving commands and vice versa, unless overridden. However, dumping and reloading cannot be done in the same process; use the new_proc command between dumping and reloading. See "Notes on Default Arguments" below. Control arguments: -all causes segments to be retrieved from the tape regardless of their date/time dumped. This control argument overrides a previously given DATE argument. This is the default. -brief_map, -bfmap creates a map file that lists the processed entries. -debug disables those hphcs_ calls that set quotas and transparency switches. -destination STR, -ds STR specifies a destination for printing maps and error file. The default is "incremental" for maps and "error file" for error files. -dprint, -dp causes the reload command to dprint maps and error files. This is the default. -error_of writes error messages into a file rather than printing them. The name of the error file is printed when the first error is encountered. This is the default. -error_on writes error messages on the user's terminal. -first prevents searching a tape for additional copies of a requested segment or subtree after the first copy has been retrieved. -header STR, -he STR specifies a heading for printing maps and error files. -last indicates that the last copy of a given segment or subtree on a tape or set of tapes is to be retrieved. This is the default. -map writes a list of the segments and directories processed into a file. This is the default. -nodebug enables hphcs_ calls to set quotas and the transparency switches. This is the default. -nodprint, -no_deprint, -ndp causes the reload command not to dprint maps and error files. The default is -dprint. -nomap inhibits listing of the names of processed segments and directories. This control argument and the -noreload control argument are incompatible when used with the reload command; only one or the other can be used. -noprimary, -npri uses each pathname as given. The default is -primary. -noqcheck causes the hierarchy reload to be done with quota checking suspended. Access to hphcs_ is required. This is the default. -noquota inhibits resetting of quotas. See -quota. This is the default. -noreload inhibits actual hierarchy reloading of segments into the hierarchy. This control argument can be used with -map to create a table of contents of the tape. The -noreload control argument also causes the names that would have been reloaded to be put into the map. This control argument and the -nomap control argument are incompatible when used with the reload command; only one or the other can be used. -nosetlvid inhibits the setting of the logical volume identifiers for each directory to be reloaded. -notrim inhibits deletion of entries in a directory. Entries can only be added or modified. -operator STR indicates that STR is the user's name or initials (up to 16 characters in length). -primary, -pri replaces all directory names in each pathname with the primary names. This is the default. -pvname STR indicates that segments and directories may only be reloaded onto the physical volume specified by STR. -qcheck causes quota restrictions to be enforced during the reload. -queue N, -q N specifies a queue number for any maps and error files that are dprinted. The default is queue 1. -quota causes the quotas on directories being reloaded to be set to the values they had when the directories were dumped. Access to hphcs_ is required. This is the default. -reload enables actual reloading of segments into the hierarchy. This is the default. -request_type STR, -rqt STR specifies an output request type for printing maps and error files. Available request types can be listed by using the print_request_types command (described in the Multics Commands and Active Functions manual, Order No. AG92 ). The default is "printer". -setlvid enables setting of the logical volume identifier for reloaded entries inferior to each directory reloaded. This is the default. -trim enables deletion of all entries in a directory not found in the copy of that directory being reloaded. This causes entries deleted from an earlier version of the directory to be deleted when a later version is reloaded. This is the default. It has effect only in the case of a directory that is both on the tape and in the hierarchy. DATE an argument beginning with a character other than "-", or ">" is assumed to be a date in a format acceptable to the convert_date_to_binary_ subroutine. If it can be converted successfully, then the hierarchy retriever only retrieves segments and directories dumped at or after the given date/time. Notes on default arguments: The values of arguments given to any of the hierarchy backup commands are remembered in static storage and remain in effect for the life of the process, unless explicitly changed during the invocation of a subsequent backup command. The following defaults are in effect for the reloader and retriever before any backup commands are given; they are not, however, reset to these values at the start of each backup command, except as noted below. -all -noquota -error_of -primary -map -reload -nodebug -setlvid -nohold -trim The following defaults are set automatically at the time the respective commands are executed: reload (initializer command), reload (Multics command), reload_system_release: -quota -trim retrieve: -all -noquota -notrim All of the above commands: -map ----------------------------------------------------------- Historical Background This edition of the Multics software materials and documentation is provided and donated to Massachusetts Institute of Technology by Group BULL including BULL HN Information Systems Inc. as a contribution to computer science knowledge. This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology, Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell BULL Inc., Groupe BULL and BULL HN Information Systems Inc. to the development of this operating system. Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970), renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture for managing computer hardware properly and for executing programs. Many subsequent operating systems incorporated Multics principles. Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. . ----------------------------------------------------------- Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without fee is hereby granted,provided that the below copyright notice and historical background appear in all copies and that both the copyright notice and historical background and this permission notice appear in supporting documentation, and that the names of MIT, HIS, BULL or BULL HN not be used in advertising or publicity pertaining to distribution of the programs without specific prior written permission. Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc. Copyright 2006 by BULL HN Information Systems Inc. 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