Process Archival

Is there any way to check whether particular process is archived or not? we have one main process which holds total application data and suddenly it got disappeared from the processes. I tried checking with process display name and with unique reference which we suffixed to find the processes but no luck.

Archival settings for the above main process is 3 days upon completion/cancellation but we do not usually complete this process as this process is being used for process dashboard.

OriginalPostID-254171