Hello,
We have a parent element and its DVE(s) to monitor a device and its sub-devices.
Sometimes, one of the sub-devices get broken and need to be manually replaced.
Due to this, the old DVE is correctly discarded by DataMiner and we manually have to re-create a new DVE to monitor the new sub-device.
The problem with this approach is since the new DVE is similar to a new element, it does not contain the trending the old DVE had – this results in a loss of continuity when viewing historical data as the new DVE does not contain historical data.
The sub-device however retains the historical trending when viewed from the sub-device GUI.
Is there any way to work around this ? How can I ensure the new DVE gets access to the historical trending the old DVE had ?
Thanks in advance.
Hi Arun,
As far as I know, the only possible option is to handle this use case in the connector. Instead of removing the old DVE, the connector can verify if the new device is from the same type.
For example, if the parent element is a chassis, most of the time the DVE is identified by the slot number. When a card is replaced, the new card is typically placed in the same slot, which makes the detection straightforward.
However, this approach can introduce corner cases. What happens if the new device has a different identifier than the one being replaced? How the connector can detect that the new device is an actual replacement?
Hope it helps.