From owner-freebsd-questions@freebsd.org Fri Oct 23 19:24:13 2015 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 090D2A1D7AD for ; Fri, 23 Oct 2015 19:24:13 +0000 (UTC) (envelope-from brandon.wandersee@gmail.com) Received: from mail-io0-f172.google.com (mail-io0-f172.google.com [209.85.223.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id D093B131 for ; Fri, 23 Oct 2015 19:24:12 +0000 (UTC) (envelope-from brandon.wandersee@gmail.com) Received: by iofz202 with SMTP id z202so134049452iof.2 for ; Fri, 23 Oct 2015 12:24:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=references:from:to:cc:subject:in-reply-to:date:message-id :mime-version:content-type; bh=uv/4gi2rgVTaCRTdBRE5ORWRSX905OLdfZbmz2vD9Z8=; b=mnjiIw4OWmcfIFWV0AghJ/F+/p3ECcPss6C2bAj49xsc+D3ujkTTxF5M72G4MEkcRf V0dNsHLjNnoBC9qUga/jY47Jrno/ieXwPLXfCB5Ftzy5Z8sXbNiQMAHOkBo1/Ba0hOJI s+PYuXsZ/8y8TsbWUyKROrnMIOCfVa9jD+bR/P28UfsR6HQxrFZqBe7wZyE7cXIpIxvi hfLjrYGGfVKPiT7MSldOmo+fZCIoCC8PqcRV/wAQf4ithanAmDqjhW9frZczf9Ugbzdg RVaPsqwHdhR6M+RKghATHzBTDFynWgydR7NAw/uDBydZcgvXmMG5PFWz5W7O6splU+K0 w2gg== X-Received: by 10.107.15.31 with SMTP id x31mr9254444ioi.51.1445628245855; Fri, 23 Oct 2015 12:24:05 -0700 (PDT) Received: from WorkBox.Home.gmail.com (63-231-132-20.mpls.qwest.net. [63.231.132.20]) by smtp.gmail.com with ESMTPSA id d6sm8374697ioe.30.2015.10.23.12.24.04 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 23 Oct 2015 12:24:04 -0700 (PDT) References: <867fmh12nq.fsf@WorkBox.Home> <86pp081glq.fsf@WorkBox.Home> <20151021143525.GX87605@mordor.lan> <86lhaw107r.fsf@WorkBox.Home> <20151022131510.GY87605@mordor.lan> From: Brandon J. Wandersee To: Julien Cigar Cc: Adam Vande More , FreeBSD Questions , krad Subject: Re: gjournal and TRIM: A safe combination? In-reply-to: <20151022131510.GY87605@mordor.lan> Date: Fri, 23 Oct 2015 14:24:03 -0500 Message-ID: <86bnbpjsmk.fsf@WorkBox.Home> MIME-Version: 1.0 Content-Type: text/plain X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Oct 2015 19:24:13 -0000 Julien Cigar writes: > This is where gjournal (and data=journal on EXT-like FS) comes in as > datas and metadatas are written in the journal _before_, so you avoid > corruption and data loss. This was my rationale when opting for gjournal. I figured the extra layer of journaling rather than soft updates alone might be worthwhile, but if it's not intended for use on an SSD, not necessarily better than soft updates alone, and overkill on an old laptop, then I'll just do without it. Thanks for the input, folks. Take care. -- ================================================================= :: Brandon Wandersee :: :: brandon.wandersee@gmail.com :: ================================================================== 'A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.' - Douglas Adams ==================================================================