Foglight for Oracle (Cartridge) 5.9.3.20


Metric	Description
2-way Misses	The number of current and consistent blocks that were received by the selected instance from a specific instance, after a 2-way roundtrip.
3-way Misses	The number of current and consistent blocks that were received by the selected instance from a specific instance, after a 3-way roundtrip.
Consistent Blocks 2-way Misses	The number of consistent blocks that were received by the selected instance from a specific instance, after a 2-way roundtrip.
Consistent Blocks 3-way Misses	The number of consistent blocks that were received by the selected instance from a specific instance, after a 3-way roundtrip.
Consistent Blocks Misses	The number of consistent blocks that were received by the selected instance from a specific instance, after a 2-way or 3-way roundtrip.
Current Blocks 2-way Misses	The number of current blocks that were received by the selected instance from a specific instance, after a 2-way roundtrip.
Current Blocks 3-way Misses	.The number of current blocks that were received by the selected instance from a specific instance, after a 3-way roundtrip
Current Blocks Misses	The number of current blocks that were received by the selected instance from a specific instance, after a 2-way or 3-way roundtrip.

Datafile Fragmentation

Purpose

The Datafile Fragmentation collection collects information regarding the layout of the free space left in the datafile due to fragmentation.

Collection Type

Oracle

Collection Sampling Settings

None (on-demand collection).

Metric Descriptions


Metric	Description
Datafile name	The name of the datafile
Extent Size	Offset end of the extent from the beginning of the file.
Extent Start	Offset start of the extent from the beginning of the file.
Extent Type	Defines the type of the extent: Used, Fully Usable, Partly Usable or Unusable.
Sequence ID	The datafile’s sequence ID.

Datafile IO Activity

Purpose

The Datafile IO Activity collection collects metrics and performance ratios related to datafile I/O activity.

Collection Type

Oracle

Collection Sampling Settings


Frequency Mode	Collection Interval (Seconds)
Realtime Collection	60
Online	300
Offline	900

Metric Descriptions


Metric	Description
Avg IO Time	Average time spent on a single IO request for a specific datafile
Avg Read Time	Average time spent on a single physical read request for a specific datafile
Avg Write Time	Average time spent on a single physical write request for a specific datafile
Contents	The type of the tablespace contents (temporary, permanent, undo)
File Full Name	The name of the datafile (including full path)
File ID	The datafile ID
File Name	The name of the datafile (without the path)
File Path	The datafile path
IO Time	The total time spent on carrying out IO operations (reading and writing data) on a specific datafile
Last IO Time	The time spent while performing last I/O operation on a specific datafile
Max Single Read Time	The maximum time spent while reading a single block from a specific datafile
Max Single Write Time	The maximum time spent while writing a single block to a specific datafile
Min Single IO Time	The minimum time spent while reading a single block from a specific datafile
PDB	In multitenant architectures, the name of the pluggable database.
Physical IO	Total size, in blocks, of all disk reads and writes for a specific datafile
Physical IO Percent	The IO activity (block reads + block writes) for a specific datafile as a percentage of the total IO activity for all datafiles
Physical Reads	The number of data blocks read by Oracle, which are not present in the buffer cache or in the PGA, thereby requiring I/O read operations, that is: the total number of data blocks read from disk.
Physical Reads Percent	The block reads carried out for a specific datafile as a percentage of the of total block reads carried out for all datafiles
Physical Writes	Total size in blocks of all disk writes for a specific datafile
Physical Writes Percent	The block writes carried out for a specific datafile as a percentage of the of total block writes carried out for all datafiles
Read Requests	The number of read requests for a specific datafile that read one or more database blocks per request.
Read Time	The total time spent on reading data from a specific datafile.
Single Block Read Time	The total time spent on read requests that read one database block per request from a specific datafile.
Single Block Reads	Number of read requests for a specific datafile, which read one database block per request.
Tablespace Name	The tablespace name.
Write Requests	The number of write requests for a specific datafile that wrote one or more database blocks per request.
Write Time	The total time spent on writing data to specific datafile.

Datafiles Storage

Purpose

The Datafiles Storage collection provides a list of all datafiles and their overall properties and storage details.

Collection Type

Oracle and Operating System

Collection Sampling Settings


Frequency Mode	Collection Interval (Seconds)
Realtime Collection	900
Online	900
Offline	3600

Metric Descriptions


Metric	Description
Autoextend	Indicates whether the datafile is autoextensible.
Autoextensible	Indicates if at least one datafile in the database is not autoextensible
File ID	The ID of the selected datafile.
File Name	The name of the datafile.
Filesystem Name	The name of the file system where the datafile resides.
Free	The amount of free space on the selected datafile.
Free Pct	The percentage of free space on the selected datafile.
Is ASM File	Indicates whether the datafile is an Automatic Storage Management (ASM) file.
Maximum Used Percent	The maximum percent of the used disk space of all the database datafiles.
Maxsize	The maximum size of this datafile; used for autoextensible datafiles.
PDB	In multitenant architectures, the name of the pluggable database.
Size	The size of the datafile (in megabytes).
Status	Indicates whether the datafile is available or invalid.
Tablespace Name	The name of the table space to which the datafile belongs.
Total Allocated Space	The total allocated space in the database.
Total Allocated Space Delta
Total Free Space Percent	The percentage of free space in the database datafiles.
Used	The size (in megabytes) of used datafile storage.
Used Pct	The percentage of used datafile storage.

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Foglight for Oracle (Cartridge) 5.9.3.20 - User Guide

Cluster Misses

Datafile Fragmentation

Datafile IO Activity

Datafiles Storage