JJ Johnson
Gawd
- Joined
- Jun 26, 2008
- Messages
- 802
First, ask yourself whether or not all of the data is in need of being backed up? If it's mostly pirated pr0n and bad movies that you've downloaded, you can probably easily download it all again if anything happens. Figure out what absolutely needs to be backed up and it may turn out to be a small fraction of that.
After that, the choices are fairly simple. If you have 7 TB of data on disk that needs backing up, then you'll need another 7 TB of disk space for you backup. That could be on external drives, drives plugged in and out of a hotswap bay, or drives in a separate system or systems. If you have 20 TB of data that you think needs backing up, you'll need 20 TB of additional drive space. At some point the amount of space needed makes using external drives too unwieldy, so you will need a second system for backups.
After that, the choices are fairly simple. If you have 7 TB of data on disk that needs backing up, then you'll need another 7 TB of disk space for you backup. That could be on external drives, drives plugged in and out of a hotswap bay, or drives in a separate system or systems. If you have 20 TB of data that you think needs backing up, you'll need 20 TB of additional drive space. At some point the amount of space needed makes using external drives too unwieldy, so you will need a second system for backups.