According to the method, when a request to write the predetermined data to a page to which data has been written is made, {HEAD ~ the predetermined data} is written to {TAIL ~ a log block} corresponding to a data block containing the page 
is written to
According to the method , when a request to write the predetermined data to a page to which data has been written is made , { HEAD ~ the predetermined data } is written to { TAIL ~ a log block } corresponding to a data block containing the page
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH