Understanding the status of a historical data set
The following table shows the valid Status field values that can appear for a data set on the DSLIST view and explains what each value means in terms of reading or writing availability.
Understanding the status of a historical data set
Status | Available for writing | Available for reading |
|---|---|---|
Active Only one data set at a time per PAS can have an Active status. | Yes The historical recorder is currently writing historical data to this data set. | Yes |
Closed | Yes, if the Rec field indicates Yes no, if the Rec field indicates No | Yes, regardless of the Rec field value no, if the Pending field value is SEL PEND |
Error There is an error condition with the data set. | No | No |
Open This data set was the most recent Active data set before the historical recorder switched to a different data set, but this data set has not been closed yet. The Open status rarely occurs; it could indicate an impending error condition for the data set. | No | YES |
Qscd | No | No |