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authorPaolo Bonzini <pbonzini@redhat.com>2012-10-18 16:49:24 +0200
committerKevin Wolf <kwolf@redhat.com>2012-10-24 10:26:20 +0200
commitd9b902db3fb71fdcdfbb2aa9cc94a410dee864e5 (patch)
tree9102d91ad88014e5c04f0d26cdf0c7a991dd3adb /qmp-commands.hx
parent893f7ebafe4e8afc0ce4dbd9e64b3752f3036bbb (diff)
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qmp: add drive-mirror command
This adds the monitor commands that start the mirroring job. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qmp-commands.hx')
-rw-r--r--qmp-commands.hx42
1 files changed, 42 insertions, 0 deletions
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 4f9c711..614baea 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -936,6 +936,48 @@ Example:
EQMP
{
+ .name = "drive-mirror",
+ .args_type = "sync:s,device:B,target:s,speed:i?,mode:s?,format:s?",
+ .mhandler.cmd_new = qmp_marshal_input_drive_mirror,
+ },
+
+SQMP
+drive-mirror
+------------
+
+Start mirroring a block device's writes to a new destination. target
+specifies the target of the new image. If the file exists, or if it is
+a device, it will be used as the new destination for writes. If it does not
+exist, a new file will be created. format specifies the format of the
+mirror image, default is to probe if mode='existing', else the format
+of the source.
+
+Arguments:
+
+- "device": device name to operate on (json-string)
+- "target": name of new image file (json-string)
+- "format": format of new image (json-string, optional)
+- "mode": how an image file should be created into the target
+ file/device (NewImageMode, optional, default 'absolute-paths')
+- "speed": maximum speed of the streaming job, in bytes per second
+ (json-int)
+- "sync": what parts of the disk image should be copied to the destination;
+ possibilities include "full" for all the disk, "top" for only the sectors
+ allocated in the topmost image, or "none" to only replicate new I/O
+ (MirrorSyncMode).
+
+
+Example:
+
+-> { "execute": "drive-mirror", "arguments": { "device": "ide-hd0",
+ "target": "/some/place/my-image",
+ "sync": "full",
+ "format": "qcow2" } }
+<- { "return": {} }
+
+EQMP
+
+ {
.name = "balloon",
.args_type = "value:M",
.mhandler.cmd_new = qmp_marshal_input_balloon,