Hi,
Im just confused about how the netbackup restore works. If I backup up a 3TB folder and the fragment size is 20GB, Netbackup creates an image ID and associate N number of fragments (20GB) with the same image ID. However, if I need to restore an 1 MB file from Nth fragment , would the Netbackup need scan all the fragments ,from 1 to last(3TB), to restore an 1 MB file?
The situation here is , we backup and keeps the data in the cloud. But while restoring a single file, we dont find any other options than bring all the fragments back locally. It appears to be really crazy as the cloud restore cost is too high and unpredicable at time.
The response from the Symantec engineer :- "It sounds like you are wondering how to find the section of the backup image that contains the info/files you want to avoid restoring, or rather loading, the whole backup. This can not be done. The backup info is stored in the .f header file which tells NBU what files it needs to do the restore. It will have to, essentially, traverse the entire set of files to get what it needs and validate that the backup is "good". There is no way to figure out which file has the ones you want OR restore the info from just those files."
Any thoughts ?
Manu