x
/
openstack-resource-agents
Code Issues Proposed changes

Clarify risks of not using shared storage 

Make it clearer what the risks of not using shared storage are.
Information is based on:

  http://docs.openstack.org/user-guide-admin/cli_nova_evacuate.html

which says "The command rebuilds the instance from the original image or
volume" but later says that "To preserve the user disk data on the
evacuated server, deploy Compute with a shared file system" and then use
--on-shared-storage.

Change-Id: I09600414eb0d7fff1cf301b11b3fa9a76fc08c77
This commit is contained in:
Adam Spiers 2016-03-25 13:13:05 +00:00
parent 734f5f4e60
commit 75dcff3b9d
2 changed files with 12 additions and 2 deletions
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7
ocf/NovaCompute
View File

@ -120,7 +120,12 @@ This option should be used with caution.
<parameter name="no_shared_storage" unique="0" required="0">
<longdesc lang="en">
Disable shared storage recovery for instances. Use at your own risk!
Indicate that nova storage for instances is not shared across compute
nodes. This must match the reality of how nova storage is configured!
Otherwise VMs could end up in error state upon evacuation. When
storage is non-shared, instances on dead hypervisors will be rebuilt
from their original image or volume, so anything on ephemeral storage
will be lost.
</longdesc>
<shortdesc lang="en">Disable shared storage recovery for instances</shortdesc>
<content type="boolean" default="0" />

7
ocf/NovaEvacuate
View File

@ -120,7 +120,12 @@ This option should be used with caution.
<parameter name="no_shared_storage" unique="0" required="0">
<longdesc lang="en">
Disable shared storage recovery for instances. Use at your own risk!
Indicate that nova storage for instances is not shared across compute
nodes. This must match the reality of how nova storage is configured!
Otherwise VMs could end up in error state upon evacuation. When
storage is non-shared, instances on dead hypervisors will be rebuilt
from their original image or volume, so anything on ephemeral storage
will be lost.
</longdesc>
<shortdesc lang="en">Disable shared storage recovery for instances</shortdesc>
<content type="boolean" default="0" />