FILSYS(5) FILSYS(5) NAME filsys, flblk, ino - format of file system volume SYNOPSIS #include <sys/types.h> #include <sys/flbk.h> #include <sys/filsys.h> #include <sys/ino.h> DESCRIPTION Every file system storage volume (e.g. RF disk, RK disk, RP disk, DECtape reel) has a common format for certain vital information. Every such volume is divided into a certain number of 512-byte blocks. Block 0 is unused and is avail- able to contain a bootstrap program, pack label, or other information. Block 1 is the super block. The layout of the super block as defined by the include file <sys/filsys.h> is: