Red Hat NETWORK 4.0 -, Справочное руководство

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Appendix C. Probes 249
Field Value
Critical Maximum Redo Buffer Allocation
Retry Rate
Warning Maximum Redo Buffer Allocation
Retry Rate
Table C-59. Oracle::Redo Log settings
C.9.13. Oracle::Table Extents
The Oracle::Table Extents probe monitors an Oracle database instance and collects the
following metrics:
•
Allocated Extents-Any Table — The total number of extents for any table.
•
Available Extents-Any Table — The percentage of available extents for any table.
In Oracle, table extents allow a table to grow. When a table is full, it is extended by an
amount of space configured when the table is created. Extents are configured on a per-
table basis, with an extent size and a maximum number of extents.
For example, a table that starts with 10 MB of space and that is configured with an extent
size of 1 MB and max extents of 10 can grow to a maximum of 20 MB (by being extended
by 1 MB ten times). This probe can be configured to alert by (1) the number of allocated
extents (e.g. "go critical when the table has been extended 5 or more times"), or (2) the
table is extended past a certain percentage of its max extents (e.g. "go critical when the
table has exhausted 80% or more of its max extents").
The required
Table Owner and Table Name fields contain a default value of % that
matches any table owner or name.
Field Value
Oracle SID*
Oracle Username*
Oracle Password*
Oracle Port*
1521
Table Owner* %
Table Name* %
Timeout* 30