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Guidelines | |
Physical Reads (PhyReads)
The PhyReads parameter reports the total number of physical reads performed per second on the monitored tablespace in the previous polling interval. If Oracle has been performing multiblock I/O, this number may not equal the BlkReads parameters, but it should not be greater.
Also, this parameter may not agree with the I/O traffic that is reported by the operating system. This issue is due to some reasons that can include the possibility of non-Oracle traffic to the device and additional levels of caching being applied by the operating system.
This parameter uses dba_data_files and v$filestat Oracle objects for the data collection.
If this value is too high, consider one of the following actions:
- Redistribute the tablespace data to even out the load.
- Move one or more datafiles to another disk.
- Take the busy table out of shared datafiles, and place it in its own datafile on a separate disk.
If you have recently added a datafile to your tablespace, the datafile is monitored after ten polling cycles of CollAvailability.
BMC PATROL properties
Property | Default value |
|---|---|
Application class | ORACLE_ETSM_TBSP_INSTANCE |
Command type | Not applicable |
Platform | All |
Icon style | Graph |
Unit | Physical reads per second |
Border range | Undefined |
Alarm1 range | Undefined |
Alarm2 range | Undefined |
Scheduling(poll time) | Poll time of collector |
Active at installation | Yes |
Parameter type | Consumer |
Value set by | CollTablespaces |
BMC ProactiveNet Performance Management properties
Property | Default value |
|---|---|
Monitor type | ETSM Regular Tablespace Instance |
Key Performance Indicator | No |
Monitor for abnormalities | Yes |
Graph by default | No |
Availability | No |
Response time | No |
Normal distribution | Yes |
Statistical | Yes |