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becomes an issue, set the value to 25. If you set the value to 20 or less,
performance of the SAVE and SAVEAS commands slows significantly.
(ISAVEPERCENT system variable)
File Safety Precautions
Assists in avoiding data loss and in detecting errors.
Automatic Save
Saves your drawing automatically at the intervals you specify. You can specify
the location of all Autosave files by using the SAVEFILEPATH system
variable.SAVEFILE (read-only) stores the name of the Autosave file.
NOTE Automatic save is disabled when the Block Editor on page 231 is open.
Minutes Between Saves: When Automatic Save is on, specifies how often the
drawing is saved.
(SAVETIME system variable)
Create Backup Copy with Each Save
Improves the speed of incremental saves, especially for large drawings.
(ISAVEBAK system variable)
For information about using backup files, see Create and Restore Backup Files
in the User's Guide.
Full-Time CRC Validation
Specifies whether a cyclic redundancy check (CRC) should be performed each
time an object is read into the drawing. CRC is an error-checking mechanism.
If your drawings are being corrupted and you suspect a hardware problem or
a software error, turn this option on.
Maintain a Log File
Writes the contents of the text window to a log file. To specify the location
and name of the log file, use the Files tab in the Options dialog box. You can
also set the log file location by using the LOGFILEMODE system variable. The
LOGFILENAME system variable (read-only) stores the log file name of the
current drawing.
File Extension for Temporary Files
Specifies a unique extension for temporary save files. The default extension
is .ac$.
Security Options
1328 | Chapter 15 O Commands