... shows the relative importance of the variouskinds of data written to disk, both in terms of how much ofthe live blocks they occupy on disk and in terms of howmuch of the data written to the log they ... (i-number for the directory and the positionwithin the directory), the contents of the directory entry(name and i-number), and the new reference count for theinode named in the entry. These records ... sequen-tially, then writes 100 Mbytes randomly to the existing file, thenreads 100 Mbytes randomly from the file, and finally reads the filesequentially again. The bandwidth of each of the five phases...