Hfck - IBM RT PC Problem Determination Manual

Parameters:
AlXname
This is the path name of the AIX file.
fromoffset
This optional parameter specifies the offset (hexadecimal)
from the beginning of the file to start displaying data. If
this parameter is not specified, the default is 0.
tooffset
This optional parameter (if
the offset (hexadecimal) from the beginning of the file to
quit displaying data. If not specified, 128 bytes are
displayed.
Use the hfck command to check a fixed disk bad block relocation
area for bad blocks detected by the system during a read operation.
This function may be able to relocate these bad blocks successfully.
This is useful when a file system has no available free blocks
because the command may make more space available. This
command is available only when VMF is diskette based. VMF
hangs after this command completes and a message is displayed
telling you to restart the system.
Format:
reald
h fck | * -v
Parameters:
reald
This identifies the fixed disk input/output device number to
repair. If
Appendix A. VRM Maintenance Facility A-21
fromoffset
is specified, all fixed disks are checked.
is specified) provides