very long retention
The customer ask us to keep some monthly backups for an abnormal retention: 20 years!
We have to consider also:
the compatibility for the future type of client that will have to restore these backups;
the compatibility for the future type of tape drives with the actual type of cartridge - LTO3;
normally we manage our yearly retention backups with SLP and vault policies, we move from a DataDomain disk pool to a LTO3 library.
Do you have some hints? Has Netbackup some specific feature for this kind of scenario?
Thank you very much,