23 Feb
2007
23 Feb
'07
11:16 a.m.
is there currently or will there ever be a good long
time
permanent solution for good promising backups?
no
you have to assume that you will migrate digital files to media
capable of being read reliably until the next generation of mass
storage arrives. all of the other protections (redundancy, error
correction, etc.) need to be in place as well to protect against
migration of data that has already been corrupted.
the good news is that transfer rates and bit density increase with
time, so old data is easier to migrate
the bad news is the amount of data to migrate is increasing exponentially