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"Релиз FreeBSD 12.1" Отправлено анонн, 05-Ноя-19 19:54
> В общем аналог линуксовой blkdiscard, которая с 2013 существует. Сочувствую. В отсутсвие зоопарка ФС вполне хватало штатной поддержки "newfs" c 2010 года: commit a44d57eec1b7d9bd34822f81c4e7bde6e9e85f68 Author: mav <mav@FreeBSD.org> Date:   Tue Jan 19 12:58:29 2010 +0000     MFC r201139:     Add BIO_DELETE support to ada(4):     - For SSDs use TRIM feature of DATA SET MANAGEMENT command, as defined by     ACS-2 specification working draft.     - For CompactFlash use CFA ERASE command, same as ad(4) does.          With this patch, `newfs -E /dev/ada1` was able to restore write speed of     my heavily weared OCZ Vertex SSD (firmware 1.4) up to the initial level     for the most part of it's capacity. man newfs The newfs utility is used to initialize and clear file systems before      first use -E      Erase the content of the disk before making the filesystem.  The              reserved area in front of the superblock (for bootcode) will not              be erased.  Erasing is only relevant to flash-memory or thinly              provisioned devices.  Erasing may take a long time.  If the              device does not support BIO_DELETE, the command will fail.

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Сообщение*:	>> В общем аналог линуксовой blkdiscard, которая с 2013 существует. > Сочувствую. > В отсутсвие зоопарка ФС вполне хватало штатной поддержки "newfs" c 2010 года: > [code] > commit a44d57eec1b7d9bd34822f81c4e7bde6e9e85f68 > Author: mav <mav@FreeBSD.org> > [b]Date: Tue Jan 19 12:58:29 2010 +0000[/b] > MFC r201139: > Add BIO_DELETE support to ada(4): > - For SSDs use TRIM feature of DATA > SET MANAGEMENT command, as defined by > ACS-2 specification working draft. > - For CompactFlash use CFA ERASE command, same > as ad(4) does. > [b]With this patch, `newfs -E /dev/ada1` was able > to restore write speed of > my heavily weared OCZ Vertex SSD (firmware 1.4)[/b] > up to the initial level > for the most part of it's capacity. > [/code] > man newfs > [code] > The newfs utility is used to initialize and clear file systems before > first use > -E Erase the content of the > disk before making the filesystem. The > > reserved area in front of the superblock (for bootcode) will > not > > be erased. Erasing is only relevant to flash-memory or > thinly > > provisioned devices. Erasing may take a long time. > If the > > device does not support BIO_DELETE, the command will fail.[/code]
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