CLRINC^DBACK (concurrent external backup Only)

This procedure is called to clear the incremental backup bitmaps that mark blocks as modified for the databases in the backup list. At the same time it also deletes the backup history as it is no longer possible to do any sort of a backup without first performing a full backup. This procedure is designed to be used prior to doing an external full backup with InterSystems IRIS running. If you perform an external backup with InterSystems IRIS down, then before shutting down the system, call this entry point. The format of the function is as follows:

CLRINC^DBACK(mode)

Argument	Description
mode	Indicates what output to write to the terminal during the procedure. “QUIET” — Only display return value and text related to abnormal conditions. Any other value — Display the directory names as they are processed.

For example:

%SYS>w $$CLRINC^DBACK("QUIET")
1
%SYS>

%SYS>Do CLRINC^DBACK("NOISY")
 
     Cleared incremental backup bitmap in c:\iris-install\mgr\
     Cleared incremental backup bitmap in c:\iris-install\mgr\irisaudit\
     Cleared incremental backup bitmap in c:\iris-install\mgr\user\
%SYS>

Notes for this procedure:

Requires read and write access to the ^SYS global.
Records the state of switch 13, sets it if it is not already, and restores it to its original state upon exit.
Issues a New command on all local variables except those defined in the main backup procedure.
Leaves directories dismounted if they are dismounted when you call this routine.

LISTDIRS^DBACK