Re: [Exadata] How do you use FlashDisk ?
- From: Kerry Osborne <kerry.osborne@xxxxxxxxxxx>
- To: surachart@xxxxxxxxx
- Date: Sat, 19 Mar 2011 04:19:35 -0500
Hi Surachart,
The biggest concern for me would be taking space away that could be used as
Flash Cache, which is critical for OLTP type work loads. Keep in mind that
you'll be duplicating blocks 2x or 3x depending on redundancy setting of the
grid disk (normal or high). My going in position would be to use all of the
space as Flash Cache. I would only consider creating a grid disk for very high
write objects and only if I could demonstrate a real improvement via testing.
Kerry Osborne
Enkitec
blog: kerryosborne.oracle-guy.com
On Mar 19, 2011, at 3:34 AM, Surachart Opun wrote:
> On Exadata, You will have flashdisks. Idea to use them:
> A. Make them for Exadata Smart Flashcache
> B. Use them for Grid Disk for ASM Disk Group, and store some database files.
> C. Use both A and B in Database System
>
> I just curious, What should I concern, if use Flash Disks to be Grid Disks.
> What is you idea to use Flashdisk? However, Database System supports both
> OLTP and DSS.
>
> Thank You
> Surachart Opun
> Oracle ACE, Contributor (Oracle User Group in Thailand)
> http://surachartopun.com
> skye: surachart_op
>
>
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