From mboxrd@z Thu Jan 1 00:00:00 1970 From: berk walker Subject: Re: Is My Data DESTROYED?! Date: Fri, 23 Oct 2009 19:49:30 -0400 Message-ID: <4AE2410A.10603@panix.com> References: <70ed7c3e0910221840o795a61b9u77774725386868e2@mail.gmail.com> <222314.82857.qm@web38801.mail.mud.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Mattias Wadenstein Cc: Christian Pernegger , linux-raid@vger.kernel.org, adfas asd List-Id: linux-raid.ids Mattias Wadenstein wrote: > On Fri, 23 Oct 2009, Christian Pernegger wrote: > >>> I believe you are confusing raid with backup. >> >> For lots of people the primary role of RAID is as a protection against >> data-loss nowadays. Backups just aren't feasible/cost-effective >> anymore for the amounts of data involved. Sticking your head in the >> sand and repeating that mantra doesn't change that and it isn't >> helping. > > Well, claiming that RAID will protect your data under all circumstances > isn't helping either. Backups will actually protect against such things > as rm -rf:ing the wrong directory or mkfs:ing the wrong device, etc. > Things that RAID will never protect against. > > And I don't see how backups aren't feasable, USB/network harddrives keep > pace with in-box harddrive sizes just fine. Offsite backup might be > trickier/costlier, so you might constrain those to just the data that > you would be really sad to see gone if the house burns down (photo > album, own creations, etc). > > /Mattias Wadenstein > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Sir - Whereas Neil, et al, profess that RAID is NOT equal to BACKUP - Most of us know that tape backup is VERY costly, in several ways, in our multi-terrabyte situations. Your mention of USB/network solutions does beg the obvious question-- How would one do USB/network solutions without some degree of encoded backup, and trust? BTW, worse yet is implied trust in Cloud, eh? And then, you say: