If you want a hard drive for general use, your safest bet is getting a 500GB – 1TB hard drive for storing files. That should be enough to cover most standard file storage needs. The price difference between a 500GB and 1TB is typically negligible, so I personally recommend going for a 1TB drive.
How to choose the right backup solution for your business?
- Therefore, solutions such as disk backup and Oracle Data Guard should be considered, along with their required hardware and storage infrastructure. Again, the cost to the business, while data is unavailable, will drive justification of additional infrastructure. Determine Recovery Window
How big of a backup does a VLDB need?
- This can make a dramatic difference for VLDBs, e.g. a 1 TB database with only 100 GB used space will result in a ~100 GB backup, not 1 TB.
What are the best practices for large database backup&recovery?
- Very Large Database Backup & Recovery Best Practices Page 4 way for justification of appropriate hardware, storage, and software expenditures to meet business-mandated service levels. Assess Tolerance for Data Loss Recovery Point Objective (RPO) is the degree to which data loss can be tolerated, e.g. 24 hours, 1 hour, zero data loss.
How often is the image backup made?
- The image copy is rolled forward with the most current incremental, to produce a new on-disk full backup, on a regular basis (e.g. daily/weekly/monthly). Archived logs are backed up and retained on-disk, as needed.
Generally you want a drive that is at least twice as large as the amount of data you are backing up. For instance, if your internal hard drive is 500GB and you are using 250GB of on the drive, the minimum size drive you'd want to backup to is a 500GB drive.