doc: fix disk=0 use case in flavor doc

The 0 value of the disk parameter of the flavor is only meaningfull
if the instance is booted from volume as in any other case the
instance will use local disk and the scheduler will not be
able to select the hosts based on the real image size as that
information is not available for the scheduler.

Change-Id: I6b3ba2fb323341071eae6b9e9f54ef833fdbaff7
Closes-Bug: #1599787
DocImpact: admin guide
This commit is contained in:
Balazs Gibizer 2016-07-07 16:28:10 +02:00
parent 29ae67ab55
commit 9d08e805a8
1 changed files with 4 additions and 1 deletions

View File

@ -1768,7 +1768,10 @@ flavor_disk:
description: |
The size of the root disk that will be created in GiB. If 0 the
root disk will be set to exactly the size of the image used to
deploy the instance.
deploy the instance. However in this case filter scheduler cannot
select the compute host based on the virtual image size. Therefore
0 should only be used for volume booted instances or for testing
purposes.
flavor_ephem_disk:
in: body
required: true