[one-users] OpenNebula with additional storage

[Amier Anis]

hi,

any idea on this?

part of that, is /var/lib/one/datastores not necessary export from frontend?

On Thu, Sep 19, 2013 at 11:23 AM, Amier Anis <mymabma at gmail.com> wrote:

> *Hi Ruben,*
>
> Thanks give some explanation. Just to ensure I have same picture and
> understand your words.
>
>    1. I'm planned to use GlusterFS or iSCSI (openfiler) for both my
>    datastore 1 and 2.
>    2. Do you mean default and system (0 and 1) can be expand to external
>    storage?
>    3. Is that mean when I use ID 100 for datastore1 (192.168.1.11) then
>    datastore2 (192.168.8.12) must be use ID 101 or must use same ID 100?
>
> Is the structure look like this?
>
> ​/var/lib/one/datastore/0    <-- default created by OpenNebula | default
> internal storage or can expand to external storage
> ​/var/lib/one/datastore/1    <-- default created by OpenNebula | default
> inernal storage or can expand to external storage
> ​/var/lib/one/datastore/101   <---- mount point from datastore 1
> ​/var/lib/one/datastore/102   <---- mount point from datastore 2
>
>
> Thanks you.
>
>
>
>
> *.: Amier Anis :.*
> On Thu, Sep 19, 2013 at 3:19 AM, Ruben S. Montero <
> rsmontero at opennebula.org> wrote:
>
>> Hi
>>
>> So I assume that you have 2 different NFS shares (or equivalent):
>>
>> About Mount Points
>>
>> They **must** use the same ID as the one assigned by OpenNebula. So if
>> you want datastore with ID 100 be backed by datastore1 (192.168.8.11), then
>> you must mount the volume on
>> ​​
>> /var/lib/one/datastore/100. Same apply to 0,1 default and system
>> datastores created by OpenNebula by default.
>>
>> About Datastore Types and Usage
>>
>> There are two types of Datastores: Images where you usually store base
>> images (e.g. default ID:1) and system where the VMs run from (e.g. system
>> ID:0). And there are three types of images: persistent no copy from image
>> to system datastores (link); no-persistent images are copied (cloned) to
>> the system datastore; and volatile disks, always created in the datastore.
>>
>> Summary, register an image (oneimage create) will take space from your
>> image DS, deploying a vm (onevm deploy) will take space from your system
>> DS. How much space? It depends on the image (persistent vs non-persistent)
>> and the format raw vs qcow2.
>>
>> You  also need to consider that checkpoints (suspend/stop a VM) will
>> generate a checkpoint file to be stored also in the system DS
>>
>>
>> Hope you can now plan better your storage.
>>
>> Cheers
>>
>> Ruben
>>
>>
>>
>> On Wed, Sep 18, 2013 at 4:18 PM, Amier Anis <mymabma at gmail.com> wrote:
>>
>>> Guys,
>>>
>>> any suggestion or advise. really need your help.
>>>
>>> On Tue, Sep 17, 2013 at 7:41 PM, Amier Anis <mymabma at gmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> I would like to know how I should implement the datastore if I have 2
>>>> different size of storage but with same datastore types (shared FS). As I
>>>> know I need to I need to mount the target datastore to very hosts.
>>>>
>>>> However, I little bit confuse on the datastore structure and where to
>>>> mount the the first datastore1 (192.168.8.11) and 2nd datastore2
>>>> (192.168.8.12). Is that correct if i mount the datastore like this at every
>>>> node?
>>>>
>>>> *Method 1*
>>>>
>>>>    1. datastore1 to /var/lib/one/datastore/0
>>>>    2. datastore2 to /var/lib/one/datastore/1
>>>>
>>>> or i need to like this
>>>>
>>>> *Method 2*
>>>>
>>>>    1. datastore1 to /var/lib/one/datastore/1
>>>>    2. datastore2 to /var/lib/one/datastore/2
>>>>
>>>> Is the /var/lib/one/datastore/0 is for frontend use? how much space we
>>>> need if we have 1TB of datastore or VM?
>>>>
>>>> Is there any specfic number that I must use and cannot use to mount the
>>>> datastore?
>>>>
>>>> How do i set the additional datastore?
>>>>
>>>>
>>>> Hope you can advise further.
>>>>
>>>> OpenNebula : 4.x
>>>> OpenNebula Sunstone : 192.168.8.10
>>>> Storage 1 / Datastore 1 : 192.168.8.11
>>>> Storage 2 / Datastore 2 : 192.168.8.12
>>>>
>>>> Your kind assistant is highly sought.
>>>>
>>>> Thanks you.
>>>>
>>>> Regards & Best Wishes,
>>>>
>>>>
>>>> *.: Amier Anis :.*
>>>>
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>
>>>
>>
>>
>> --
>> --
>> Join us at OpenNebulaConf2013 in Berlin, 24-26 September, 2013
>> --
>> Ruben S. Montero, PhD
>> Project co-Lead and Chief Architect
>> OpenNebula - The Open Source Solution for Data Center Virtualization
>> www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
>>
>
>
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