Hi All,
Portal, Server & DataStores are in different AWS Machines. Shared Location & Backup path is given as Portal machine Local drive letter "C:\\BKP" which is giving an error as below:

WebGISDR Log Infromation:
2021-01-21 09:24:03 INFO [main] com.esri.arcgis.webgis.client.WebGISDR - Starting the WebGIS DR utility.
2021-01-21 09:24:05 INFO [main] com.esri.arcgis.webgis.storageservice.file.FileStorageService - Initializing File Storage Service with Base Directory: C:\BKP
2021-01-21 09:28:45 INFO [pool-1-thread-2] com.esri.arcgis.webgis.component.service.impl.ServerDRService - The following ArcGIS Server has been backed up successfully:
Url: https://xyz.xyz.com/server.
2021-01-21 09:28:46 ERROR [main] com.esri.arcgis.webgis.service.impl.WebGISDRDispatcher - Exception: Cannot access the file C:\BKP\WebGISSite1611221045940\server\jqzbc7ikdczdm2vv\20210121-090102-UTC.agssite.
2021-01-21 09:28:46 ERROR [main] com.esri.arcgis.webgis.client.WebGISDR - Cannot access the file C:\BKP\WebGISSite1611221045940\server\jqzbc7ikdczdm2vv\20210121-090102-UTC.agssite.
Any suggestions Please.