From mboxrd@z Thu Jan 1 00:00:00 1970 From: Reindl Harald Subject: Re: How to backup of large md raid volumes? Date: Fri, 19 May 2017 07:49:43 +0200 Message-ID: <28a4540b-c5ac-bd8d-c030-6d718a02fdfc@thelounge.net> References: <442a4af0-00d2-853d-5294-84ae0353262b@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <442a4af0-00d2-853d-5294-84ae0353262b@gmail.com> Content-Language: de-CH Sender: linux-raid-owner@vger.kernel.org To: Ram Ramesh , Linux Raid List-Id: linux-raid.ids Am 18.05.2017 um 23:37 schrieb Ram Ramesh: > Any one have a method to backup large volumes like md raid6 (16TB)? > Since the backup will not fit in one disk (in many cases and mine too) I > am wondering, if there is a known/easy technique to backup using > multiple usb hard drives. I googed and found a few fancy backup > utils/systems like Amanda etc. They are overkill for me. I am choosing > not to back up simply because of the complexity of setup as the data in > my RAID volume is NOT precious and can be replaced with a week of effort. > > If any one can think of some thing simple, please point me to it and I > will do the reading to figure out https://www.amazon.com/16TB-Desktop-External-Drive-WDBLWE0160JCH-NESN/dp/B01B6BN1CU 499$ is not that much for a 16 TB external backup disk and whn you format it with BTRFS and enable compression you most likely have a lot fo space and your backup finally is just a single rsync command