VTL Issue and Media lebelling
NBU Version 18.104.22.168
Master , Media servers OS : Linux
Client OS : linux
Backup Destination : VTL , Deduplication Appliance
Backup Type : Flash Backup with Media servers as alternate client
VTL Vendor Recommended to have 20GB size Tapes, 3000 Tapes are configured. Works good for backups, Issue arises when starting disk clean up job on the appliance. It never cleans the space ocupied by virtual tapes on which Netbackup reports 0 valid images and Expiration date already met.
Vendor is enforcing that This is due to Netbackup not Signalling the Appliance to clean those tapes and these tapes have to be labelled again inorder to have their device clan those tapes/delete data on disk.
Please Correct me if i am wrong
1. Netbackup Labels the tape only once when using it first time for backup and once the retention for data is met, just the records for the backup IDs will be deleted from Image Databse, and tape will be overwritten by next backup job, so if the same tape is selected for next backup job, do Netbackup labels the tape again and then starts appending data on to the tape ? or uses same Label (which was given for first time use) for future backups.
to be short will a tape gets labelled every time when used for backup ?