From mboxrd@z Thu Jan 1 00:00:00 1970 From: Janek Kozicki Subject: Re: raid1 on HDD + RAM ? Date: Tue, 30 Sep 2008 21:21:07 +0200 Message-ID: <20080930212107.3175f888@szpak> References: <20080930174926.5fdad7f1@szpak> <48E25D65.2010208@dgreaves.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <48E25D65.2010208@dgreaves.com> Sender: linux-raid-owner@vger.kernel.org To: Linux RAID Mailing List List-Id: linux-raid.ids David Greaves said: (by the date of Tue, 30 Sep 2008 18:09:57 +0100) > > They would automatically sync on boot-up of the computer. > You'd need to create and --add the ramdisk... ok, I'll figure this out :) > > I'm asking because an ultra-fast READ and normal WRITE would be > > useful for me... > > Also look at the --write-mostly and --write-behind options in mdadm. thanks, this is great news for me. For real use I will need to repartition my hard drive - to create another partition for that. But just for testing - will it work if mdadm will use LVM partition, which is already on top of mdadm raid ? Or maybe just use some huge file as a loopback device? Which testing method is better? -- Janek Kozicki |