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[jichenjc <jichenjc@xxxxxxxxxx>]

Public bug reported:

I have following flavor

jichen@controller:~$ nova flavor-list
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| ID | Name      | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| 1  | m1.tiny   | 512       | 1    | 0         |      | 1     | 1.0         | True      |
| 11 | t.test1   | 512       | 1    | 5         |      | 1     | 1.0         | True      |
| 12 | t.test2   | 512       | 1    | 2         |      | 1     | 1.0         | True      |

I use 
nova boot --config-drive True --flavor 11 --key_name mykey --image 99ebce05-c5d2-4829-bc25-004a8d3f3efb  --nic net-id=45f1ac55-e6bc-444e-be8b-3112c84646a8  --ephemeral size=1 t9

to boot a new instance ,so the eph disk is 1 G now

if we resize to flavor 12, it will fail now, but we can compare the real
eph disk size and see whether we an resize it or not

** Affects: nova
     Importance: Undecided
     Assignee: jichenjc (jichenjc)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => jichenjc (jichenjc)

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https://bugs.launchpad.net/bugs/1324005

Title:
  use real disk size to consider whether it's a resize down

Status in OpenStack Compute (Nova):
  New

Bug description:
  I have following flavor

  jichen@controller:~$ nova flavor-list
  +----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
  | ID | Name      | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public |
  +----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
  | 1  | m1.tiny   | 512       | 1    | 0         |      | 1     | 1.0         | True      |
  | 11 | t.test1   | 512       | 1    | 5         |      | 1     | 1.0         | True      |
  | 12 | t.test2   | 512       | 1    | 2         |      | 1     | 1.0         | True      |

  I use 
  nova boot --config-drive True --flavor 11 --key_name mykey --image 99ebce05-c5d2-4829-bc25-004a8d3f3efb  --nic net-id=45f1ac55-e6bc-444e-be8b-3112c84646a8  --ephemeral size=1 t9

  to boot a new instance ,so the eph disk is 1 G now

  if we resize to flavor 12, it will fail now, but we can compare the
  real eph disk size and see whether we an resize it or not

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