From mboxrd@z Thu Jan 1 00:00:00 1970 From: Theodore Ts'o Subject: Re: [Lsf-pc] [LSF/MM TOPIC] Storage: SMR drives Date: Thu, 23 Jan 2014 00:33:14 -0500 Message-ID: <20140123053314.GB7122@thunk.org> References: <20140116165428.GC3100@orion.maiolino.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Carlos Maiolino , linux-fsdevel@vger.kernel.org, lsf-pc@lists.linux-foundation.org To: "Martin K. Petersen" Return-path: Received: from imap.thunk.org ([74.207.234.97]:50896 "EHLO imap.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750992AbaAWFdU (ORCPT ); Thu, 23 Jan 2014 00:33:20 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Thu, Jan 16, 2014 at 01:36:57PM -0500, Martin K. Petersen wrote: > >>>>> "Carlos" == Carlos Maiolino writes: > > Carlos> I'm not sure if the decision regarding which solution to use > Carlos> (restricted or host-aware) was already made > > All the different approaches are still being discussed in > T10/T13. Realistically, we'll have to support all of them. For people who are interested, the latest drafts for the SMR management layer (now called Zoned Block Commands) are available from the T10.org web site. You can find the latest drafts by going to: http://www.t10.org/new.htm and then look for documents with "ZBC" in the title, but the current set of documents are: 14-010r1 ZBC Proposed Commands Curtis Stevens 2014/01/15 http://www.t10.org/cgi-bin/ac.pl?t=d&f=14-010r1.pdf 14-009r1 ZBC model clauses for zone types Curtis Stevens 2014/01/15 http://www.t10.org/cgi-bin/ac.pl?t=d&f=14-009r1.pdf 14-007r3 ZBC Model clauses for write and read commands 2014/01/15 http://www.t10.org/cgi-bin/ac.pl?t=d&f=14-007r3.pdf 14-005r1 ZBC Initial Outline Curtis Stevens 2014/01/15 http://www.t10.org/cgi-bin/ac.pl?t=d&f=14-005r1.pdf 14-025r0 ZBC common model references (clause 4) Gerald Houlder 2014/01/10 http://www.t10.org/cgi-bin/ac.pl?t=d&f=14-025r0.pdf Documents 14-009 and 14-007 are probably the most interesting to look at. Also of note is REPORT ZONES command in section 5.3 in document 14-010. Cheers, - Ted