RE: Taking advantage of SSD Capabilities when Smart Flash Cache isn't an option?
Date: Wed, 29 May 2013 11:52:08 -0500
Message-ID: <F05D8DF1FB25F44085DB74CB916678E887A01F7A2C_at_NADCWPMSGCMS10.hca.corpad.net>
Ok, so it sounds like SSD have limitations on even being setup as shared devices. I guess that makes sense as I think about it in more detail now. Local HDs aren't easily sharable either so now I'm thinking my premise may be in error to begin with.
The SSDs wouldn't be coming from an array. It would probably take an ugly hack to get the servers to see the SSD devices on each host and have them read/writeable from any host in the cluster. So, not really a good option there then.
Chris
From: Kevin Jernigan [mailto:kevin.jernigan_at_oracle.com]
Sent: Wednesday, May 29, 2013 11:46 AM
To: Taylor Christopher - Nashville
Cc: oracle-l_at_freelists.org
Subject: Re: Taking advantage of SSD Capabilities when Smart Flash Cache isn't an option?
Ok, so if you're on 10g then Database Smart Flash Cache is out of the question - it was introduced in 11gR2. If the SSDs are set up as drives in a storage array, then they might be sharable - but we've seen several "all flash" arrays from various storage vendors, none of which can be mounted as shared storage, so you should check to be sure the SSDs are truly share-able, and that there aren't sneaky performance bottlenecks hiding in the storage controllers etc...KJ
Kevin Jernigan
(650) 607-0392 (o)
Senior Director Product Management
(415) 710-8828 (m)
kevin.jernigan_at_oracle.com
-- http://www.freelists.org/webpage/oracle-lReceived on Wed May 29 2013 - 18:52:08 CEST