From nobody Wed Sep 13 13:28:52 2023 X-Original-To: questions@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4Rm1WD1yVDz4sn2M for ; Wed, 13 Sep 2023 13:28:56 +0000 (UTC) (envelope-from freebsd-doc@fjl.co.uk) Received: from bs1.fjl.org.uk (bs1.fjl.org.uk [84.45.41.196]) by mx1.freebsd.org (Postfix) with ESMTP id 4Rm1WB32xyz4GcZ for ; Wed, 13 Sep 2023 13:28:54 +0000 (UTC) (envelope-from freebsd-doc@fjl.co.uk) Authentication-Results: mx1.freebsd.org; dkim=none; spf=pass (mx1.freebsd.org: domain of freebsd-doc@fjl.co.uk designates 84.45.41.196 as permitted sender) smtp.mailfrom=freebsd-doc@fjl.co.uk; dmarc=none Received: from [192.168.1.178] (host86-167-39-89.range86-167.btcentralplus.com [86.167.39.89]) (authenticated bits=0) by bs1.fjl.org.uk (8.14.4/8.14.4) with ESMTP id 38DDSrDq017304 for ; Wed, 13 Sep 2023 14:28:53 +0100 (BST) (envelope-from freebsd-doc@fjl.co.uk) Message-ID: <78bc91f8-665d-5ecc-4867-ba53f6291603@fjl.co.uk> Date: Wed, 13 Sep 2023 14:28:52 +0100 List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.0 Subject: Re: Mount bzip2 disk image Content-Language: en-GB To: questions@freebsd.org References: <96ce2d8b-f310-96bc-394c-007541401c57@fjl.co.uk> From: Frank Leonhardt In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.87 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.94)[-0.938]; NEURAL_HAM_MEDIUM(-0.83)[-0.831]; R_SPF_ALLOW(-0.20)[+ip4:84.45.41.196:c]; MIME_GOOD(-0.10)[text/plain]; ONCE_RECEIVED(0.10)[]; RCVD_NO_TLS_LAST(0.10)[]; MLMMJ_DEST(0.00)[questions@freebsd.org]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:25577, ipnet:84.45.0.0/17, country:GB]; RCVD_COUNT_ONE(0.00)[1]; DMARC_NA(0.00)[fjl.co.uk]; RCPT_COUNT_ONE(0.00)[1]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[questions@freebsd.org]; ARC_NA(0.00)[] X-Rspamd-Queue-Id: 4Rm1WB32xyz4GcZ On 13/09/2023 13:43, Andrea Venturoli wrote: > If you unpack it to a ZFS dataset with compression enabled, the > compression ZFS uses is pretty good so you might find that the disk > space isn't the problem you think it might be. > > I'd still need 2x the space (compressed + uncompressed) :( > The rest of the paragraph explains this would be decompressing the bzip2 image from tape (or other offline stream), so the actual disk space would be about the same as having the bzip2 file on DASD.