From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Berra Subject: Re: Implementing Encryption and Decryption in Raid Device Driver. Date: Wed, 14 Sep 2005 10:04:26 +0200 Message-ID: <20050914080425.GA11729@percy.comedia.it> References: <20050914051447.13030.qmail@web54703.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Return-path: Content-Disposition: inline In-Reply-To: <20050914051447.13030.qmail@web54703.mail.yahoo.com> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Tue, Sep 13, 2005 at 10:14:47PM -0700, vinnakota chaitanya wrote: >Hello Friends, > >I'am working on a "RAID 5 Controller" device to which >4 SATA hard drives are connected each of size 80GB. > >My requirement is implementing encryption & >decrpyption for the device. As we don't have any >filesystem on the target, we are falling on raid >device driver . The first thing I want to ask is > > 1. Whether this approach is recommendable or not. why do you want to implement encryption in the raid engine, we already have more than one implementation that plugs nicely over the raid (dm-crypt or loop-AES), imho we don't need anither one, and it does not belong in the raid driver anyway, it is better to stack multiple components that do their job well, instead -- Luca Berra -- bluca@comedia.it Communication Media & Services S.r.l. /"\ \ / ASCII RIBBON CAMPAIGN X AGAINST HTML MAIL / \