RE: [HACKERS] CRCs

[Mikheev, Vadim]

> > You know - this is *core* assumption. If drive lies about this then
> > *nothing* will help you. Do you remember core rule of WAL?
> > "Changes must be logged *before* changed data pages written".
> > If this rule will be broken then data files will be inconsistent
> > after crash recovery and you will not notice this, w/wo CRC in
> > data blocks.
> 
> You can include the data blocks' CRCs in the log entries.

How could it help?

Vadim