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Minor wording fixes for the recently committed ZFS section.

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Reviewed by:	bjk
Approved by:	bcr (mentor)
This commit is contained in:
Eitan Adler 2012-12-13 13:07:12 +00:00
parent e22c3b2753
commit 3ab6e86ad7
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=40378
1 changed files with 6 additions and 5 deletions

11
en_US.ISO8859-1/books/faq/book.xml
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@ -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