From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from [195.159.176.226] ([195.159.176.226]:54302 "EHLO blaine.gmane.org" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1750734AbcIMEZi (ORCPT ); Tue, 13 Sep 2016 00:25:38 -0400 Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1bjfHY-0008Ag-Tb for linux-btrfs@vger.kernel.org; Tue, 13 Sep 2016 06:25:16 +0200 To: linux-btrfs@vger.kernel.org From: Duncan <1i5t5.duncan@cox.net> Subject: Re: Small fs Date: Tue, 13 Sep 2016 04:25:05 +0000 (UTC) Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Chris Murphy posted on Mon, 12 Sep 2016 08:48:49 -0600 as excerpted: > On Sun, Sep 11, 2016 at 10:54 PM, Duncan <1i5t5.duncan@cox.net> wrote: > >> On the bright side, the double-whammy of being under such tight >> filesystem size constraints, coupled with finding out you have less >> than half the space of the filesystem actually available due to >> default-mixed-mode AND default dup-metadata (thus dup everything), > > I'm not following what you mean by default dup everything. You mean > that's how it used to work? Because on a real USB stick, 2GiB: Yes. What I meant is that now that --mixed isn't default, it avoids auto- halving the space due to duping the data as well (which AFAIK it used to do by default since mixed-mode treated everything as metadata, and metadata defaults are dup except on ssd), in mixed-mode. Tho now that I think of it, it's possible I'm mistaken, since I always specify single/dup/raid1/whatever, as well as mixed if I want it, choosing not to rely on the defaults, myself. Which seems a pretty wise choice, with the defaults changing over time, sometimes, as with removal of the old default mixed under a GiB, to strongly dis-recommended defaults. =:^( -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman