From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Leslie Rhorer" Subject: RE: Adding a smaller drive Date: Tue, 30 Jun 2009 23:12:11 -0500 Message-ID: <20090701041219526.QNFU19322@cdptpa-omta02.mail.rr.com> References: Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: "'Martin K. Petersen'" , 'Mikael Abrahamsson' Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids > >>>>> "Mikael" == Mikael Abrahamsson writes: > > Mikael> The 2TB WD GP drives have less sectors than their 2x their 1TB > Mikael> drives. > > That's how it's supposed to be. You mean that's how IDEMA specs read. Unless there is some legal agreement signed by the drive manufacturer (or whomever) requiring adherence to a certain spec, they can do just about anything they want. Compliance with a published spec is great, but unless some licensing agreement is in place, it isn't enforceable. > Mikael> The 2TB ones adhere to the IDEMA standard (per your other > Mikael> email), but the 1TB ones do not. (2TB ones have 3907029168 > Mikael> sectors, the 1TB ones have 1953103872). > > That, on the other hand, is pretty weird. Call the capacity police! That's pretty much the point. Not adhering to IDEMA specs is not illegal.