> It really depends. Having multiple backups over time will limit the
> risk that corruption gets propagated to a slave system. Also, there is
> a CRC on the WAL records which are shipped, which helps a bit, but there
> are still cases where corruption can get you. The best thing is to have
> frequent, tested, backups.
>
How does one validate a backup? Is there any generally practiced way
of doing that? Or what do you mean when you say "tested" backups?
--
Amit Langote