This metric represents the age, in minutes, of the oldest read-only blocks in the buffer cache. This indicates how fast read operations are cycling through system memory. When the Network Appliance Filer is reading very large files (larger than the machine's memory size), buffer cache age will be very low.
The rest of the information in this section is only valid for this metric when it appears in either the Enterprise Manager Grid Control or the Enterprise Manager Database Control (if applicable).
The following table shows how often the metric's value is collected.
|
Target Version |
Collection Frequency |
|
All Versions |
Every 15 Minutes |
SNMP MIB object: miscCacheAge (1.3.6.1.4.1.789.1.2.2.23)
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