Data File (PD_PDDF)
- Organization of this page
Function
The Data File (PD_PDDF) record stores performance data indicating the status (at a specific point in time) of data files. PFM - RM for Oracle creates one record for each data file in the database. This is a multi-instance record.
Default and changeable values
Item |
Default value |
Changeable |
---|---|---|
Collection Interval |
300 |
Y |
Collection Offset |
10 |
Y |
Log |
No |
Y |
LOGIF |
(Blank) |
Y |
Over 10 Sec Collection Time |
No |
N |
ODBC key fields
-
PD_PDDF_FILE_NUM
-
PD_PDDF_NAME
Lifetime
From the creation to the deletion of a data file
Record size
-
Fixed part: 935 bytes
-
Variable part: 672 bytes
Fields
PFM - View name (PFM - Manager name) |
Description |
Summary |
Format |
Delta |
Supported version |
Data source |
---|---|---|---|---|---|---|
Blocks (BLOCKS) |
Oracle block size |
-- |
double |
No |
All |
|
Checkpoint Change # (CHECKPOINT_CHANGE_NUM) |
System change number (SCN) at the last checkpoint |
-- |
double |
No |
All |
V$DATAFILE.CHECKPOINT_CHANGE# |
Enabled (ENABLED) |
This field contains one of the following values as the method for accessing a file using SQL: DISABLED READ ONLY READ WRITE UNKNOWN |
-- |
string(10) |
No |
All |
|
File # (FILE_NUM) |
File identification number |
-- |
ulong |
No |
All |
|
File Name (NAME) |
File name |
-- |
string(513) |
No |
All |
|
Free % (PERCENT_FREE) |
Percentage ratio of free space |
-- |
double |
No |
All |
|
Free Mbytes (FREE) |
Size of free space in megabytes |
-- |
double |
No |
All |
|
MBytes (BYTES) |
Disk space in megabytes required on the file system |
-- |
double |
No |
All |
|
Physical Blocks Read (PHYSICAL_BLOCKS_READ) |
Number of physical block read operations |
-- |
double |
No |
All |
|
Physical Blocks Written (PHYSICAL_BLOCKS_WRITTEN) |
Number of physical block write operations |
-- |
double |
No |
All |
|
Physical Reads (PHYSICAL_READS) |
Number of physical read operations that were completed |
-- |
double |
No |
All |
|
Physical Writes (PHYSICAL_WRITES) |
Number of physical write operations that were completed |
-- |
double |
No |
All |
|
Read Time (READ_TIME) |
Read operation time. In centiseconds (1/100 of a second). |
-- |
double |
No |
All |
|
Record Time (RECORD_TIME) |
Collection termination time for the performance data stored in the record |
-- |
time_t |
No |
All |
Remote Monitor Collector |
Record Type (INPUT_RECORD_TYPE) |
Record name (always PDDF) |
-- |
string(4) |
No |
All |
Remote Monitor Collector |
Start Time (START_TIME) |
Collection start time for the performance data stored in the record |
-- |
time_t |
No |
All |
Remote Monitor Collector |
Status (STATUS) |
File type (system file or user file) and file status (OFFLINE, SYSOFF, ONLINE, SYSTEM, or RECOVER) |
-- |
string(7) |
No |
All |
|
Tablespace Name (TABLESPACE_NAME) |
Tablespace name associated with the file |
-- |
string(30) |
No |
All |
|
Used Mbytes (USED) |
Size of used area in megabytes |
-- |
double |
No |
All |
|
VA DeviceID (VADEVICEID) |
Device ID of virtual agent |
-- |
string(256) |
No |
All |
Remote Monitor Collector |
Write % (WRITE_PERCENTAGE) |
Percentage ratio of write operations |
-- |
double |
No |
All |
|
Write Time (WRITE_TIME) |
Write operation time. In centiseconds (1/100 of a second). |
-- |
double |
No |
All |
|