From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from v6.tansi.org (mail.tansi.org [87.118.116.4]) by mail.server123.net (Postfix) with ESMTP for ; Thu, 4 Feb 2016 11:48:09 +0100 (CET) Received: from gatewagner.dyndns.org (77-57-36-72.dclient.hispeed.ch [77.57.36.72]) by v6.tansi.org (Postfix) with ESMTPA id 5BB7B20DC211 for ; Thu, 4 Feb 2016 11:48:08 +0100 (CET) Date: Thu, 4 Feb 2016 11:48:07 +0100 From: Arno Wagner Message-ID: <20160204104807.GA17299@tansi.org> References: <56B20C05.7080307@gmail.com> <56B25914.5090204@whgl.uni-frankfurt.de> <56B30DE8.1060502@gmail.com> <56B31B7D.6040607@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56B31B7D.6040607@gmx.de> Subject: Re: [dm-crypt] The future of disk encryption with LUKS2 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de On Thu, Feb 04, 2016 at 10:35:57 CET, Sumaya1960@gmx.de wrote: > Hi agian, > > I am very sorry for bothering all of you! > BUT I lost all my Data once and I will make sure that this time it > will not going to happen again! > > So 2 short questions: > > 1. external USB-Disk with as raw block device as 'external backup > device'? ( FAQ 2.2 (2)) > Is that OK? If you have a header backup, that already covers some problems. If you add a full backup of the raw LUKS device, that protects you justr as much as a regular fullbackup does. You just cannot compress that backup compared to a regular one. > 2. Can I use a Hardware Raid 10 with 4 SSD's? > I will use raw disks as well with no other format and no other > partition. I will configure the virtual drive on the host (adapter) > side. Is this possible or would you recommend another setup on the > hardware raid? RAID10 is something pretty obsolete and it has worse reliability than RAID1 and the speed-advantage does not matter much today. Better use RAID1 with larger SSDs or RAID 6. BTW, you can meaningfully mix normal HDDS and SSDs in a Linux software RAID1 and you can use more than 2 drives in a RAID1 under Linux software RAID. I have a page on how to do that here: http://www.arnowagner.info/hybrid/ What I currently uses is one SSD and two notebook HDDs for important data in a 3-way RAID1 (on partition level, but works the same for full disks). Unless all three fail, the data is good. Of course, I have backup. LUKS goes on-top of that RAID. For reading, this is as fast as the SSD. Writes are buffered in memory anyways. Unless you need high write-performance for writes larger than the free memory, this is the ideal set-up. > Thank you so much and again, I am very sorry for my stupid questions! Don't worry. The only propblems are lazy questions where people have not bothered to find things out. You obviously have. Regards, Arno > I just want to make sure, that everything is considered! > I will use ASCII character Set to setup the pass-phrase, that is clear. > > Thanks a lot to everyone! > > Best wishes!!! > Susu > > > > > > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@wagner.name GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718 ---- A good decision is based on knowledge and not on numbers. -- Plato If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier