Re: WAL and O_DIRECT

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Ravi Krishna <s.ravikrishna@xxxxxxx> writes:
> However our DB2 folks are raising a concern that PG WAL writes may not be crash safe, unless we are using write back technology in SAN or SSD , which we are using.

What's your point exactly?  If the underlying hardware does not provide
durable writes, there's nothing PG (or DB2) can do to fix that.

			regards, tom lane


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