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# > Housekeepingオブジェクト
次のオブジェクトは、`housekeeping`APIに直接関連しています。
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### Housekeeping
settings オブジェクトは、以下のプロパティを持ちます。
|プロパティ|[Type](/manual/api/reference_commentary#data_types)|説明|
|--|--|------|
|hk\_events\_mode|integer|Enable internal housekeeping for events and alerts.
Possible values:
0 - Disable;
1 - *(default)* Enable.|
|hk\_events\_trigger|string|Trigger data storage period. Accepts seconds and time unit with suffix.
Default: 365d.|
|hk\_events\_service|string|Service data storage period. Accepts seconds and time unit with suffix.
Default: 1d.|
|hk\_events\_internal|string|Internal data storage period. Accepts seconds and time unit with suffix.
Default: 1d.|
|hk\_events\_discovery|string|Network discovery data storage period. Accepts seconds and time unit with suffix.
Default: 1d.|
|hk\_events\_autoreg|string|Autoregistration data storage period. Accepts seconds and time unit with suffix.
Default: 1d.|
|hk\_services\_mode|integer|Enable internal housekeeping for services.
Possible values:
0 - Disable;
1 - *(default)* Enable.|
|hk\_services|string|Services data storage period. Accepts seconds and time unit with suffix.
Default: 365d.|
|hk\_audit\_mode|integer|Enable internal housekeeping for audit.
Possible values:
0 - Disable;
1 - *(default)* Enable.|
|hk\_audit|string|Audit data storage period. Accepts seconds and time unit with suffix.
Default: 365d.|
|hk\_sessions\_mode|integer|Enable internal housekeeping for sessions.
Possible values:
0 - Disable;
1 - *(default)* Enable.|
|hk\_sessions|string|Sessions data storage period. Accepts seconds and time unit with suffix.
Default: 365d.|
|hk\_history\_mode|integer|Enable internal housekeeping for history.
Possible values:
0 - Disable;
1 - *(default)* Enable.|
|hk\_history\_global|integer|Override item history period.
Possible values:
0 - Do not override;
1 - *(default)* Override.|
|hk\_history|string|History data storage period. Accepts seconds and time unit with suffix.
Default: 90d.|
|hk\_trends\_mode|integer|Enable internal housekeeping for trends.
Possible values:
0 - Disable;
1 - *(default)* Enable.|
|hk\_trends\_global|integer|Override item trend period.
Possible values:
0 - Do not override;
1 - *(default)* Override.|
|hk\_trends|string|Trends data storage period. Accepts seconds and time unit with suffix.
Default: 365d.|
|db\_extension|string|*(readonly)* Configuration flag DB extension. If this flag is set to "timescaledb" then the server changes its behavior for housekeeping and item deletion.|
|compression\_status|integer|Enable TimescaleDB compression for history and trends.
Possible values:
0 - *(default)* Off;
1 - On.|
|compress\_older|string|Compress history and trends records older than specified period. Accepts seconds and time unit with suffix.
Default: 7d.|
|compression\_availability|integer|*(readonly)* Compression availability.
Possible values:
0 - Unavailable;
1 - Available.|
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