Open Stack

Hi,

First of all, think dis question did no get answered:

-I'll try that thanx. How do you do that with the "openstack" command?

If not, the command is: openstack volume create --size (size in GB) --image
(image name or id) volume_name

Just for info the cinder command was not exact, it should be: cinder create
--image*-id *<IMAGE-ID> *--display-name* <NAME> <SIZE>


I agree with Eugen that you should make sure you can create a volume and
attach to a VM to help understand what your problem is.
This guide explains about ephemeral storage options:
https://platform9.com/support/openstack-tutorial-storage-options-and-use-cases/

By default you should be able to create VMs with ephemeral disks (not
cinder one).
Usually you can specify the directory where VM instances disks will be
stored in the compute node on nova.conf option 'instances_path' in
[DEFAULT] session. By default it should point to
'/var/lib/nova/instances/'. It is default option so, even if it is not
there, this should work.
Nova compute config options:
http://docs.openstack.org/liberty/config-reference/content/list-of-compute-config-options.html


The command to create the VM with an ephemeral disk (nova local storage and
not cinder) is:
openstack server create --image (image id or name) --flavor (flavor id or
name) vm_name


Concerning the flavor, I think the flavor you use should have the same disk
size as the disk. At least, for me when I try to boot a VM from a volume
that is not the same size of the flavor, I get BadRequest error.

Let us know if you manage to boot a VM so you can try to attach a volume to
it.

Good luck with all that.

Kind regards,
Cynthia


2016-06-21 13:36 GMT+01:00 Eugen Block <eblock at nde.ag>:

> If it was the flavor, you would get different errors, something like
> "flavor disk too small" or "out of memory". Again, I recommend to launch an
> instance on local disk to see if that is working, then fix the iscsi issue
> to be able to create volumes at all, first empty volumes, then from an
> image and so on.
>
>
> Zitat von Turbo Fredriksson <turbo at bayour.com>:
>
> On Jun 21, 2016, at 12:19 PM, Abhishek Shrivastava wrote:
>>
>> ​Have you tried any other flavors?
>>>
>>
>> No, I never saw the point. The resources I specified was well within
>> the flavors rules. And the error was "Block Device Mapping is Invalid"
>> I can not see how changing the flavor would change that.
>> --
>> System administrators motto:
>> You're either invisible or in trouble.
>> - Unknown
>>
>>
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>
>
>
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