Tiered storage performance metrics
Storage tier metrics allow drilling down into specific storage tiers for a table to monitor the data distribution.
To view a storage metric, a table and tier number must be specified. DSE identifies tiers by number. Zero represents the tier with the newest data. The number increases by one for each older tier.
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An additional implicit tier exists that represents the oldest data.
For instance, if |
For more information, see DSE Tiered Storage.
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TIER: Max Data Age [cf-tier-max-data-age]
Timestamp in local server time that represents an upper bound to the newest piece of data stored in the SSTable. When a new SSTable is flushed, it is set to the time of creation. When an SSTable is created from compaction, it is set to the max of all merged SSTables.
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TIER: sstables [cf-tier-sstables]
Number of SSTables in a tier for a table.
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TIER: Total Disk Used [cf-tier-size]
Disk space used by a table by SSTables for the tier.
