Re: Is filesystemio_options relevant when the database is on ASM ?

From: Don Seiler <don_at_seiler.us>
Date: Thu, 16 Oct 2014 13:32:43 -0500
Message-ID: <CAHJZqBB8ZtrPfvuYBzgxbKuCA8miurp8eqV-YGe4YzKVX3pEQw_at_mail.gmail.com>

Yes in 12c DNFS works on NFSv4. In fact, NFSv4 is required if you plan to use OISP (Oracle Intelligent Storage Protocol) to talk to their ZFSSA. Although I would not suggest using the ZFSSA to run live databases yet. Should be OK for FRA uses.

Don.

On Thu, Oct 16, 2014 at 10:46 AM, Kevin Jernigan <kevin.jernigan_at_oracle.com> wrote:

> As of Oracle Database 12c, dNFS works with both NFSv3 and NFSv4...KJ
>
> --
> Kevin Jernigan
> Senior Director Product Management
> Advanced Compression, Hybrid Columnar
> Compression (HCC), Database File System
> (DBFS), SecureFiles, Database Smart Flash
> Cache, Total Recall, Database Resource
> Manager (DBRM), Direct NFS Client (dNFS),
> Continuous Query Notification (CQN),
> Index Organized Tables (IOT), Information
> Lifecycle Management (ILM)+1-650-607-0392 (o)+1-415-710-8828 (m)
>
> On 10/16/14, 8:37 AM, Hameed, Amir wrote:
>
> I don’t believe DNFS is certified to work with NFSv4.
>
>
>
> *From:* oracle-l-bounce_at_freelists.org [
> mailto:oracle-l-bounce_at_freelists.org <oracle-l-bounce_at_freelists.org>] *On
> Behalf Of *Hans Forbrich
> *Sent:* Thursday, October 16, 2014 11:30 AM
> *To:* oracle-l_at_freelists.org
> *Subject:* Re: Is filesystemio_options relevant when the database is on
> ASM ?
>
>
>
> On 16/10/2014 3:35 AM, Frits Hoogland wrote:
>
> When using NFS underneath ASM, I've witnessed filesystemio_options being
> honoured by the database, which means it needs setting it to 'setall' for
> the combination AIO+DIO. Which makes sense, because you need to create a
> file on a (NFS) filesystem to be used as ASM disk device.
>
> Then it becomes important to know which NFS?
>
> I believe DNFS behaves different than standard NFSv3 which may be
> different again from NFSv4
>
> /Hans
>
>
>

-- 
Don Seiler
http://www.seiler.us

--
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Received on Thu Oct 16 2014 - 20:32:43 CEST