From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cory Coager Subject: support for external persistent cache Date: Tue, 18 Jan 2011 22:06:57 -0500 Message-ID: <4D365551.7090207@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I was wondering if it would be possible to add support for specifying a device to use for read/write persistent cache. The reason why I'm asking is because I see physical ram disks with battery backups available recently. These ram disks are relatively cheap and could add great performance for write through without the fear of data loss. Any interest in adding support for this?