Date: Mon, 19 Sep 2011 14:56:12 -0700 From: Freddie Cash <fjwcash@gmail.com> To: Bob Friesenhahn <bfriesen@simple.dallas.tx.us> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS obn FreeBSD hardware model for 48 or 96 sata3 paths... Message-ID: <CAOjFWZ5YG5raCwvE-kZQ9wjzYvxqCRBPFy47FWOsN1Yjoga1Bw@mail.gmail.com> In-Reply-To: <alpine.GSO.2.01.1109191613520.7097@freddy.simplesystems.org> References: <alpine.GSO.2.01.1109171451500.1973@freddy.simplesystems.org> <1316459220.35419.YahooMailClassic@web121209.mail.ne1.yahoo.com> <CAOjFWZ6Y4PbAaZzMxyzZHmtrNBJzOK8GMVJL0GP0PMdwj9SeXg@mail.gmail.com> <alpine.GSO.2.01.1109191613520.7097@freddy.simplesystems.org>
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On Mon, Sep 19, 2011 at 2:15 PM, Bob Friesenhahn < bfriesen@simple.dallas.tx.us> wrote: > >> It's too bad, because it would be a nice setup, ordered from fastert to >> slowest: ARC for metadata, L2ARC for file data, pool for permanent >> storage. >> > > L2ARC has extreme bandwidth limitations as compared with RAM. Be careful > what you wish for. > > For writes (7 MBps, I believe); there shouldn't be any limits on the reads. -- Freddie Cash fjwcash@gmail.com
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