Backup and.. uh.. Forwardups

I needed to make a list of these because I’m forever looking them up – I thought I’d share.

Forever Forward (1x I/O on target)



Forward Incremental w/Synthetic Full

2x I/O on target (read + write for each block)



Forward Incremental w/Active Full

(Full created from Source) (1x I/O on target)



Forward Incremental, Transforming to Reverse incremental Chains per backup

4x I/O on target (read + write + read + write for each block



Reverse Incremental –

3x I/O on target (write + read + write for each changed block)


Backup and.. uh.. Forwardups

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