From owner-freebsd-hackers@freebsd.org Sat Dec 1 03:11:14 2018 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1688E115A12B for ; Sat, 1 Dec 2018 03:11:14 +0000 (UTC) (envelope-from allanjude@freebsd.org) Received: from mx1.scaleengine.net (mx1.scaleengine.net [209.51.186.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 90E4C84DA7 for ; Sat, 1 Dec 2018 03:11:13 +0000 (UTC) (envelope-from allanjude@freebsd.org) Received: from [10.1.1.2] (Seawolf.HML3.ScaleEngine.net [209.51.186.28]) (Authenticated sender: allanjude.freebsd@scaleengine.com) by mx1.scaleengine.net (Postfix) with ESMTPSA id 576441CAC2 for ; Sat, 1 Dec 2018 03:11:07 +0000 (UTC) To: freebsd-hackers@freebsd.org References: <20181201.011411.2100982142219259108.ish@amail.plala.or.jp> <7e69211c-6ffb-6155-b17a-a845c0b3586d@grosbein.net> <20181201.093153.893601099798031027.ish@amail.plala.or.jp> From: Allan Jude Openpgp: preference=signencrypt Autocrypt: addr=allanjude@freebsd.org; prefer-encrypt=mutual; keydata= xsFNBFVwZcYBEADwrZDH0xe0ZVjc9ORCc6PcBLwS/RTXA6NkvpD6ea02pZ8lPOVgteuuugFc D34LdDbiWr+479vfrKBh+Y38GL0oZ0/13j10tIlDMHSa5BU0y6ACtnhupFvVlQ57+XaJAb/q 7qkfSiuxVwQ3FY3PL3cl1RrIP5eGHLA9hu4eVbu+FOX/q/XVKz49HaeIaxzo2Q54572VzIo6 C28McX9m65UL5fXMUGJDDLCItLmehZlHsQQ+uBxvODLFpVV2lUgDR/0rDa0B9zHZX8jY8qQ7 ZdCSy7CwClXI054CkXZCaBzgxYh/CotdI8ezmaw7NLs5vWNTxaDEFXaFMQtMVhvqQBpHkfOD 7rjjOmFw00nJL4FuPE5Yut0CPyx8vLjVmNJSt/Y8WxxmhutsqJYFgYfWl/vaWkrFLur/Zcmz IklwLw35HLsCZytCN5A3rGKdRbQjD6QPXOTJu0JPrJF6t2xFkWAT7oxnSV0ELhl2g+JfMMz2 Z1PDmS3NRnyEdqEm7NoRGXJJ7bgxDbN+9SXTyOletqGNXj/bSrBvhvZ0RQrzdHAPwQUfVSU2 qBhQEi2apSZstgVNMan0GUPqCdbE2zpysg+zT7Yhvf9EUQbzPL4LpdK1llT9fZbrdMzEXvEF oSvwJFdV3sqKmZc7b+E3PuxK6GTsKqaukd/3Cj8aLHG1T1im1QARAQABzSJBbGxhbiBKdWRl IDxhbGxhbmp1ZGVAZnJlZWJzZC5vcmc+wsF/BBMBAgApBQJVcGXGAhsjBQkSzAMABwsJCAcD AgEGFQgCCQoLBBYCAwECHgECF4AACgkQGZU1PhKYC34Muw/+JOKpSfhhysWFYiRXynGRDe07 Z6pVsn7DzrPUMRNZfHu8Uujmmy3p2nx9FelIY9yjd2UKHhug+whM54MiIFs90eCRVa4XEsPR 4FFAm0DAWrrb7qhZFcE/GhHdRWpZ341WAElWf6Puj2devtRjfYbikvj5+1V1QmDbju7cEw5D mEET44pTuD2VMRJpu2yZZzkM0i+wKFuPxlhqreufA1VNkZXI/rIfkYWK+nkXd9Efw3YdCyCQ zUgTUCb88ttSqcyhik/li1CDbXBpkzDCKI6I/8fAb7jjOC9LAtrZJrdgONywcVFoyK9ZN7EN AVA+xvYCmuYhR/3zHWH1g4hAm1v1+gIsufhajhfo8/wY1SetlzPaYkSkVQLqD8T6zZyhf+AN bC7ci44UsiKGAplB3phAXrtSPUEqM86kbnHg3fSx37kWKUiYNOnx4AC2VXvEiKsOBlpyt3dw WQbOtOYM+vkfbBwDtoGOOPYAKxc4LOIt9r+J8aD+gTooi9Eo5tvphATf9WkCpl9+aaGbSixB tUpvQMRnSMqTqq4Z7DeiG6VMRQIjsXDSLJEUqcfhnLFo0Ko/RiaHd5xyAQ4DhQ9QpkyQjjNf /3f/dYG7JAtoD30txaQ5V8uHrz210/77DRRX+HJjEj6xCxWUGvQgvEZf5XXyxeePvqZ+zQyT DX61bYw6w6bOwU0EVXBlxgEQAMy7YVnCCLN4oAOBVLZ5nUbVPvpUhsdA94/0/P+uqCIh28Cz ar56OCX0X19N/nAWecxL4H32zFbIRyDB2V/MEh4p9Qvyu/j4i1r3Ex5GhOT2hnit43Ng46z5 29Es4TijrHJP4/l/rB2VOqMKBS7Cq8zk1cWqaI9XZ59imxDNjtLLPPM+zQ1yE3OAMb475QwN UgWxTMw8rkA7CEaqeIn4sqpTSD5C7kT1Bh26+rbgJDZ77D6Uv1LaCZZOaW52okW3bFbdozV8 yM2u+xz2Qs8bHz67p+s+BlygryiOyYytpkiK6Iy4N7FTolyj5EIwCuqzfk0SaRHeOKX2ZRjC qatkgoD/t13PNT38V9tw3qZVOJDS0W6WM8VSg+F+bkM9LgJ8CmKV+Hj0k3pfGfYPOZJ/v18i +SmZmL/Uw2RghnwDWGAsPCKu4uZR777iw7n9Io6Vfxndw2dcS0e9klvFYoaGS6H2F13Asygr WBzFNGFQscN4mUW+ZYBzpTOcHkdT7w8WS55BmXYLna+dYer9/HaAuUrONjujukN4SPS1fMJ2 /CS/idAUKyyVVX5vozoNK2JVC1h1zUAVsdnmhEzNPsvBoqcVNfyqBFROEVLIPwq+lQMGNVjH ekLTKRWf59MEhUC2ztjSKkGmwdg73d6xSXMuq45EgIJV2wPvOgWQonoHH/kxABEBAAHCwWUE GAECAA8FAlVwZcYCGwwFCRLMAwAACgkQGZU1PhKYC34w5A//YViBtZyDV5O+SJT9FFO3lb9x Zdxf0trA3ooCt7gdBkdnBM6T5EmjgVZ3KYYyFfwXZVkteuCCycMF/zVw5eE9FL1+zz9gg663 nY9q2F77TZTKXVWOLlOV2bY+xaK94U4ytogOGhh9b4UnQ/Ct3+6aviCF78Go608BXbmF/GVT 7uhddemk7ItxM1gE5Hscx3saxGKlayaOsdPKeGTVJCDEtHDuOc7/+jGh5Zxpk/Hpi+DUt1ot 8e6hPYLIQa4uVx4f1xxxV858PQ7QysSLr9pTV7FAQ18JclCaMc7JWIa3homZQL/MNKOfST0S 2e+msuRwQo7AnnfFKBUtb02KwpA4GhWryhkjUh/kbVc1wmGxaU3DgXYQ5GV5+Zf4kk/wqr/7 KG0dkTz6NLCVLyDlmAzuFhf66DJ3zzz4yIo3pbDYi3HB/BwJXVSKB3Ko0oUo+6/qMrOIS02L s++QE/z7K12CCcs7WwOjfCYHK7VtE0Sr/PfybBdTbuDncOuAyAIeIKxdI2nmQHzl035hhvQX s4CSghsP319jAOQiIolCeSbTMD4QWMK8RL/Pe1FI1jC3Nw9s+jq8Dudtbcj2UwAP/STUEbJ9 5rznzuuhPjE0e++EU/RpWmcaIMK/z1zZDMN+ce2v1qzgV936ZhJ3iaVzyqbEE81gDxg3P+IM kiYh4ZtPB4Q= Subject: Re: How to use trim command ? Message-ID: <1c7139bd-258c-e7d2-2572-052da3803b3b@freebsd.org> Date: Fri, 30 Nov 2018 22:11:03 -0500 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.3.2 MIME-Version: 1.0 In-Reply-To: <20181201.093153.893601099798031027.ish@amail.plala.or.jp> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="vjvPeIPvmlhKGhFqOg4wpwU6wFjzugN23" X-Rspamd-Queue-Id: 90E4C84DA7 X-Spamd-Result: default: False [1.89 / 15.00]; local_wl_from(0.00)[freebsd.org]; NEURAL_SPAM_LONG(0.60)[0.605,0]; NEURAL_SPAM_MEDIUM(0.50)[0.503,0]; ASN(0.00)[asn:6939, ipnet:209.51.160.0/19, country:US]; NEURAL_SPAM_SHORT(0.78)[0.782,0] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 Dec 2018 03:11:14 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --vjvPeIPvmlhKGhFqOg4wpwU6wFjzugN23 Content-Type: multipart/mixed; boundary="ooQR7IA48vWSxYni6kZKmE7q6v76f972L"; protected-headers="v1" From: Allan Jude To: freebsd-hackers@freebsd.org Message-ID: <1c7139bd-258c-e7d2-2572-052da3803b3b@freebsd.org> Subject: Re: How to use trim command ? References: <20181201.011411.2100982142219259108.ish@amail.plala.or.jp> <7e69211c-6ffb-6155-b17a-a845c0b3586d@grosbein.net> <20181201.093153.893601099798031027.ish@amail.plala.or.jp> In-Reply-To: <20181201.093153.893601099798031027.ish@amail.plala.or.jp> --ooQR7IA48vWSxYni6kZKmE7q6v76f972L Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2018-11-30 19:31, Masachika ISHIZUKA wrote: >>> I'm using FreeBSD 13.0-CURRENT r341327. >>> I want to use trim command. >> >> It seems this partition is in use (mounted?) and GEOM won't allow to w= rite >> to opened partition, you need to close it first (unmount). >> Be warned: trim will destroy all data in the partition. >=20 > Thank you for reply. >=20 > I misunderstood trim was equivalent to fstrim in linux. > I undotstood that the trim command is the SSD bulk erase tool. >=20 If you want to enable TRIM on a UFS filesystem, tunefs is the command you are looking for. The equivalent to fstrim for UFS is fsck_ffs -E: Clear unallocated blocks, notifying the underlying device that they are not used and that their contents may be discarded. This is useful for filesystems which have been mounted on systems without TRIM support, or with TRIM support disabled, as well as filesystems which have been copied from one device to another. See also the -E and -t flags of newfs(8), and the -t flag of tunefs(8). --=20 Allan Jude --ooQR7IA48vWSxYni6kZKmE7q6v76f972L-- --vjvPeIPvmlhKGhFqOg4wpwU6wFjzugN23 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (MingW32) iQIcBAEBAgAGBQJcAfvKAAoJEBmVNT4SmAt+1LwP/1qkW+dH5ri7/2CoGEFs1CTu CHRDIoCebpIEEopQ3xNYwZHEUAeelAqgT8PQjUrHoDBazsRBMrsG2Z37zXWP3ore gEVVl/JIVm4bhPGcgAVAWw1gfQ0TyzWVbc99bUyXJHFpWCqdWBWa62xLZZ6tnlTh AZK04SwlQ/nhDsnM490xSVDsxjaPyG4O61/IJmhwkdieXAdDC5QpOaaW2JkrQpfJ R4OjRrr5eCATcMBn2sIBngXg46XFrOPz1S9wop3OeIHO1Xnz2W3STZcOMrhCFboE R8YDwlNPyHwTsVhoDItUSpVlXgfXXwODGsgeTrnzoKuc8c4KTD2hsvoJDJbT1L8z 4wFFmypoMNdeDOTjCjuiyfdnGP4WX3+jHsdlQ8Vp2RxWG5Jxlxa/gvTraX17yigt NKRdWlVMYauGRZ+Gxqwafs8y/z/CnlW0ZC6i+VLz78uFrwjHU/ETY3r9wtAvJDb4 VP927Xtr7WupVBV2//o2AUxmuGusr5i4MQ1hNICRUOvxYFnNDRonWyBhrJQpjmow U+ha0+6nVqhF0X0W7lHfrbjfz0/XjYRJDEfrFSf2MDp27L1aHgBUzEshQLx0JCv9 lHWlO50J6ETNXVeLWSpMLjMTfatrdV+Sq6MdKctTXDs9CZ2deHLTlQ5uyIMSA725 iiGCGZ1orNsd54msMl2K =PQjW -----END PGP SIGNATURE----- --vjvPeIPvmlhKGhFqOg4wpwU6wFjzugN23--