The INDEXF command is used to analyze ,defragment ,truncate or extend the
 INDEXF.SYS file. The analyze option reports the current fragmentation
 state, whereas the defragment and extend option allows defragmentation
 or pre-extending of INDEXF.SYS. Truncate is an option which trims
 down INDEXF.SYS to the end-of-file size.
 To perform a defragment truncate or extend
 operation the disk must be completely dismounted.
 NOTE: defragment truncate and extend require VOLPRO privilege.
     : defragment truncate and extend can not be done on the system disk.

 Syntax :

    INDEXF <device>/Qualifiers

1  –  Qualifiers

1.1    /ANALYZE

    Displays information about the number of fragments in INDEXF.SYS
    and the largest contiguous free space. If INDEXF.SYS can not be
    defragmented a "%DFU-W-NOOPT" message will be displayed.

1.2    /DEFRAG

    Starts a defragment operation on INDEXF.SYS. The disk must be
    clusterwide dismounted before starting a defragment operation.

1.3    /EXTEND

    /EXTEND=n (number of blocks)

    Extends INDEXF.SYS with 'n' blocks in 1 new fragment. This is
    equivalent to 'n' extra file headers. The disk must be clusterwide
    dismounted before starting an extend operation.
    The 'n' value will be rounded up to be a multiple of the device
    cluster size.

1.4    /SHADOW_MEMBER

    /SHADOW_MEMBER=device:

    The physical member of the shadowset on which to perform an
    EXTEND or DEFRAG operation. This qualifier is only required
    in combination with /DEFRAG and /EXTEND. Example :

    DFU> INDEXF/DEFRAG DSA0:/SHADOW_MEMBER=$1$DUA104:

1.5    /SHOW_POINTERS

    Displays all mapping pointer information during the analyze phase.

1.6    /STATISTICS

    /STATISTICS
    /NOSTATISTICS (default)

    Controls whether cpu and I/O consumption of the
    command are shown.

1.7    /TRUNCATE

    If possible the INDEXF.SYS file will be truncated back to
    the end-of-file size. The disk must be dismounted to
    perform this operation.