Date: Thu, 13 Dec 2012 13:07:13 +0000 (UTC) From: Eitan Adler <eadler@FreeBSD.org> To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r40378 - head/en_US.ISO8859-1/books/faq Message-ID: <201212131307.qBDD7D13038899@svn.freebsd.org>
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Author: eadler Date: Thu Dec 13 13:07:12 2012 New Revision: 40378 URL: http://svnweb.freebsd.org/changeset/doc/40378 Log: Minor wording fixes for the recently committed ZFS section. Reviewed by: bjk Approved by: bcr (mentor) Modified: head/en_US.ISO8859-1/books/faq/book.xml Modified: head/en_US.ISO8859-1/books/faq/book.xml ============================================================================== --- head/en_US.ISO8859-1/books/faq/book.xml Thu Dec 13 12:04:49 2012 (r40377) +++ head/en_US.ISO8859-1/books/faq/book.xml Thu Dec 13 13:07:12 2012 (r40378) @@ -4833,7 +4833,8 @@ C:\="DOS"</programlisting> are bundled up into transaction groups and written to disk when filled (<quote>Transaction Group Commit</quote>). However syscalls like &man.fsync.2; - require a commitment to stable storage before returning. + require a commitment that the data is written to stable + storage before returning. The ZIL is needed for writes that have been acknowledged as written but which are not yet on disk as part of a transaction. The transaction groups are timestamped. @@ -4893,10 +4894,10 @@ C:\="DOS"</programlisting> very heavily duplicated (such as virtual machine images, or user backups) it is possible that deduplication will do more harm than good. Another consideration is the - inability to revert deduplication status. If - deduplication is enabled, data written, and then dedup - is disabled, those blocks which were deduplicated will - not be duplicated until they are next modified.</para> + inability to revert deduplication status. If data is + written when deduplication is enabled, disabling dedup + will not cause those blocks which were deduplicated to + be replicated until they are next modified.</para> <para>Deduplication can also lead to some unexpected situations. In particular deleting files may become much
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