From: Han Han <hhan@redhat.com>
To: qemu-devel@nongnu.org
Cc: Han Han <hhan@redhat.com>, qemu-block@nongnu.org
Subject: [PATCH v2] qemu-img.texi: Describe data_file and data_file_raw
Date: Mon, 21 Oct 2019 09:07:15 +0800 [thread overview]
Message-ID: <20191021010714.24060-1-hhan@redhat.com> (raw)
https://bugzilla.redhat.com/show_bug.cgi?id=1763105
Signed-off-by: Han Han <hhan@redhat.com>
---
qemu-img.texi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/qemu-img.texi b/qemu-img.texi
index b5156d6316..983c6122f8 100644
--- a/qemu-img.texi
+++ b/qemu-img.texi
@@ -763,6 +763,16 @@ file which is COW and has data blocks already, it couldn't be changed to NOCOW
by setting @code{nocow=on}. One can issue @code{lsattr filename} to check if
the NOCOW flag is set or not (Capital 'C' is NOCOW flag).
+@item data_file
+File name of data file that is stored in the image and used as a default for
+opening the image. If the option is used, qcow2 file only stores the metadata
+for the image.
+
+@item data_file_raw
+This option requires @option{data_file}. If this option is set to @code{on},
+qemu will always keep the external data file consistent as a standalone
+read-only raw image. Default value is @code{off}.
+
@end table
@item Other
--
2.20.1
next reply other threads:[~2019-10-21 1:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-21 1:07 Han Han [this message]
-- strict thread matches above, loose matches on Subject: below --
2019-10-21 1:14 [PATCH v2] qemu-img.texi: Describe data_file and data_file_raw Han Han
2019-10-23 15:20 ` John Snow
2019-10-27 8:30 ` Stefan Hajnoczi
2019-10-28 14:39 ` Max Reitz
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