From: Nikolas Everett <nik9000@gmail.com>
To: Bruce Momjian <bruce@momjian.us>
Cc: pgsql-performance@postgresql.org
Subject: Re: SAN and full_page_writes
Date: Mon, 8 Sep 2008 10:02:27 -0400
Message-ID: <d4e11e980809080702i629187bbqab5dd70581ee8057@mail.gmail.com> (raw)
In-Reply-To: <200809061946.m86JkeS01341@momjian.us>
References: <d4e11e980809050724m5f0e8971n3909c26026fda47b@mail.gmail.com>
<200809061946.m86JkeS01341@momjian.us>
Thanks for pointing that out Bruce.
NetApp has a 6 page PDF about NetApp and databases. On page 4:
As discussed above, reads and writes are unconditionally atomic to 64 KB.
While reads or writes
may fail for a number of reasons (out of space, permissions, etc.), the
failure is always atomic to
64 KB. All possible error conditions are fully evaluated prior to committing
any updates or
returning any data to the database.
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To: pgsql-performance@postgresql.org
Cc: nik9000@gmail.com, bruce@momjian.us
Subject: Re: SAN and full_page_writes
In-Reply-To: <d4e11e980809080702i629187bbqab5dd70581ee8057@mail.gmail.com>
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