|  
 FILE# 
 | 
 
 NUMBER 
 | 
 
 Number of the file 
 | 
|  
 PHYRDS 
 | 
 
 NUMBER 
 | 
 
 Number of physical reads done 
 | 
|  
 PHYWRTS 
 | 
 
 NUMBER 
 | 
 
 Number of times DBWR is required to write 
 | 
|  
 PHYBLKRD 
 | 
 
 NUMBER 
 | 
 
 Number of physical blocks read 
 | 
|  
 PHYBLKWRT 
 | 
 
 NUMBER 
 | 
 
 Number of blocks written to disk, which may be the same as PHYWRTS if all writes are single blocks 
 | 
|  
 SINGLEBLKRDS 
 | 
 
 NUMBER 
 | 
 
 Number of single block reads 
 | 
|  
 READTIM 
 | 
 
 NUMBER 
 | 
 
 Time (in hundredths of a second) spent doing reads if the TIMED_STATISTICS parameter is true; 0 if false 
 | 
|  
 WRITETIM 
 | 
 
 NUMBER 
 | 
 
 Time (in hundredths of a second) spent doing writes if the TIMED_STATISTICS parameter is true; 0 if false 
 | 
|  
 SINGLEBLKRDTIM 
 | 
 
 NUMBER 
 | 
 
 Cumulative single block read time (in hundredths of a second) 
 | 
|  
 AVGIOTIM 
 | 
 
 NUMBER 
 | 
 
 Average time (in hundredths of a second) spent on I/O, if the TIMED_STATISTICS parameter is true; 0 if false 
 | 
|  
 LSTIOTIM 
 | 
 
 NUMBER 
 | 
 
 Time (in hundredths of a second) spent doing the last I/O, if the TIMED_STATISTICS parameter is true; 0 if false 
 | 
|  
 MINIOTIM 
 | 
 
 NUMBER 
 | 
 
 Minimum time (in hundredths of a second) spent on a single I/O, if the TIMED_STATISTICS parameter is true; 0 if false 
 | 
|  
 MAXIORTM 
 | 
 
 NUMBER 
 | 
 
 Maximum time (in hundredths of a second) spent doing a single read, if the TIMED_STATISTICS parameter is true; 0 if false 
 | 
|  
 MAXIOWTM 
 | 
 
 NUMBER 
 | 
 
 Maximum time (in hundredths of a second) spent doing a single write, if the TIMED_STATISTICS parameter is true; 0 if false 
 |