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authorrac61@labyrinth.cl.cam.ac.uk <rac61@labyrinth.cl.cam.ac.uk>2003-07-10 13:09:19 +0000
committerrac61@labyrinth.cl.cam.ac.uk <rac61@labyrinth.cl.cam.ac.uk>2003-07-10 13:09:19 +0000
commit12dc625c739885e196c9d28f8f1be14202e219c7 (patch)
tree7b9f866bcfd253639611fa98b18eb933682c0b02 /tools
parent3fdd9d4f04c9f9bddc0cc60b24ed77aa92d8d958 (diff)
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bitkeeper revision 1.337 (3f0d657f74Gik-j1dECKz392l6y-UQ)
USAGE-cmdline: Add important message about not using the web interface at the same time as the command line
Diffstat (limited to 'tools')
-rw-r--r--tools/control/doc/USAGE-cmdline21
1 files changed, 20 insertions, 1 deletions
diff --git a/tools/control/doc/USAGE-cmdline b/tools/control/doc/USAGE-cmdline
index 1e4766b80f..189577987d 100644
--- a/tools/control/doc/USAGE-cmdline
+++ b/tools/control/doc/USAGE-cmdline
@@ -1,3 +1,22 @@
+IMPORTANT! DATA LOSS POTENTIAL!
+-------------------------------
+
+It is important that no changes be made to the virtual disk manager through
+the command line while the web interface is running!
+
+If you use the web interface at all, it is NOT safe to call:
+xenctl partitions add
+xenctl vd create
+xenctl vd delete
+xenctl vd refresh
+
+Your changes will likely be lost, or the virtual disks left in an
+inconsistent state, or data on them corrupted or erased.
+
+Other xenctl functions do not modify VDM state and are therefore safe,
+e.g. it's okay to do domain control from the command line if the web
+interface is running.
+
General
-------
@@ -74,4 +93,4 @@ Create a virtual block device:
Lists virtual block devices:
xenctl vbd show
-Virtual block devices are automatically deleted when their domain is destroyed. \ No newline at end of file
+Virtual block devices are automatically deleted when their domain is destroyed.