From 8963a8f077aade5600b2952e81b1d88eb3d3dd3a Mon Sep 17 00:00:00 2001 From: Jaime Leal Date: Tue, 25 Aug 2026 13:27:00 -0600 Subject: [PATCH] Clarify snapshot offload prerequisite in Configuring data offloads The steps for enabling snapshot offloads did not clearly state that parameters must first be flagged for snapshots (via an information template or the protocol) before any data is written to the snapshot table. This was only implied in a parenthetical and a TIP, which led to customer confusion when the snapshot table remained empty after enabling the feature (ref. DCP task 304380). This change adds an explicit IMPORTANT note with the prerequisite and clarifies the meaning of the "All parameter values" option. --- .../Offload_database/Configuring_data_offloads.md | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/dataminer/Administrator_guide/Databases/Optional_database_configurations/Offload_database/Configuring_data_offloads.md b/dataminer/Administrator_guide/Databases/Optional_database_configurations/Offload_database/Configuring_data_offloads.md index 9e43c70eb0..635bcfd5f3 100644 --- a/dataminer/Administrator_guide/Databases/Optional_database_configurations/Offload_database/Configuring_data_offloads.md +++ b/dataminer/Administrator_guide/Databases/Optional_database_configurations/Offload_database/Configuring_data_offloads.md @@ -71,7 +71,12 @@ The offload rate for trend data and alarm data can be configured in System Cente - **Remote table name**: Allows you to customize the name of the table containing this data in the offload database. The default name is *DataAvg*. -1. To offload **snapshots** (i.e., parameter information for parameters for which the snapshot option has been set in the protocol), select *Parameter value* and *Enable snapshot offload*. The snapshot offloads can then be further fine-tuned as follows: +1. To offload **snapshots**, select *Parameter value* and *Enable snapshot offload*. + + > [!IMPORTANT] + > Snapshot offloads only include parameters that have been explicitly flagged for snapshots. Enabling snapshot offload without flagging any parameters will result in no data being offloaded. You can flag parameters by enabling the *Part of snapshot* option in an information template assigned to your elements (see [Creating an information template](xref:Creating_an_information_template)) or by means of the snapshot option in the protocol. In this context, the *All parameter values* option refers to all flagged parameters, including those whose value has not changed, not to all parameters in the system. + + The snapshot offloads can then be further fine-tuned as follows: - Select to offload *All parameter values* or only *All changed parameter values*. @@ -85,9 +90,6 @@ The offload rate for trend data and alarm data can be configured in System Cente This option corresponds with the `clean="true"` configuration in the *Offload* tag in *DB.xml*. If it is activated, DataMiner will truncate the data table in the offload database before new information is added. This way, the table always contains the latest snapshot information only. - > [!TIP] - > In an information template, you can configure specific parameters to be included in offload database snapshots. See [Creating an information template](xref:Creating_an_information_template). - > [!NOTE] > > When real-time or average trending is offloaded: