[one-users] [Datastores] Image Datastore has no size

Ruben S. Montero rsmontero at opennebula.org
Thu Apr 24 04:00:23 PDT 2014 

Hi

The idea is the following:

1.- Setup a NAS exporting two volumes for the ESX servers. The NAS may or
may not be in the same host as oned, in fact in production environments the
NAS will be a separated server.

2.- Mount the volumes on the ESX nodes. The NAS volumes does not need to be
mounted in OpenNebula.

3.- Create the Datastores in OpenNebula, using BASE_PATH=/vmfs/volumes


Hope the process is clearer...





On Thu, Apr 24, 2014 at 12:40 PM, Eloi - CODE42 <eloi at code42.fr> wrote:

>  Hi Ruben
>
>
>
> I created a new Image Datastore with the template values. However I can’t
> export it in /etc/exports and sudo exportfs –a, because the path
> /var/lib/one/datastores/<new_ds_id> doesn’t exist, since it has not been
> created by ONE. I tried with the PATH /vmfs/volumes but of course it
> doesn’t exist neither on the local machine. And I cannot mount them on the
> ESX neither, since the /var/lib/one/datastores path is used in step 3.3.
> My /etc/one/oned.conf file has the right DATASTORE_LOCATION&PATH values :
>
>
>
>
>
> I’m getting a bit confused.
>
> Could you precise which step of the guide contain the error, and what
> should be done instead ?
>
>
> Concerning datastore creation, I made further testing last night.
>
> 1.       The datastore creation with “onedatastore create” does actually
> work but only if the DS_FS isn’t vmfs. It seems that it does not support
> vmfs filesystem, even if the template base_path is /var/lib/one/datastores.
> It will then display the datastores has having no capacity.
>
> 2.       Creation of any kind of datastore with a template that does not
> contain BASE_PATH=”/var/lib/one/datastores” will also fail : displaying no
> capacity.
>
>
>
>
>
> Thank you for your previous answers.
>
>
>  *De :* Ruben S. Montero [mailto:rsmontero at opennebula.org]
> *Envoyé :* jeudi 24 avril 2014 10:29
> *À :* Eloi - CODE42
> *Cc :* users at lists.opennebula.org
> *Objet :* Re: [one-users] [Datastores] Image Datastore has no size
>
>
>
> Hi Eloi
>
>
>
> It seems that the guide assumes a new feature of the 4.6 version, not
> present in the 4.4 release. If you take a look the actual BASE_PATH is
> /var/lib/one/datastores/1 (and not the one in the template). This path is
> not available in the ESX hosts. So simply, create two new datastores. One
> IMAGE_DS and the other SYSTEM_DS. You may use the template values shown in
> the screenshot you send. Sorry for the error in the guide.
>
>
>
>
> I tried to change the type of the Image Datastore to SYSTEM_DS, and it
> actually got monitored properly, with a 19,2G size. Changing it back to
> IMAGE_DS recreated the issue. “$ onehost sync” didn’t solved the problem.
>
>
>
> In this case for SYSTEM_DS is using the value in oned.conf (/vmfs/volumes)
> so you get the right values
>
>
>
>
> Also, creation of any kind of datastores doesn’t seems to work neither :
> no dir is created in /var/lib/one/datastore following the  “onedatastore
> create *tmp_file*” command, and new datastores are displayed with zero
> capacity value too.
>
>
>
> When you create the datastores, no directory will be created in
> /var/lib/one/datastores. Note that for VMFS datastores they live in the
> ESXs storage.
>
>
>
>
>
> By the way, I have another question, my datastores are nfs exported, and
> originally created on a VM volume (/var) that has a 20Gig capacity. So how
> comes does Files Datastore display a 19.2Giga capacity and System Datastore
> also  display a 19.2Giga capacity ? They do physically use the same disk
> space right ? (even if its a VM virtual disk). I followed the quick start
> guide correctly, however there still are some blured line about storage for
> me.
>
>
>
> Yes the share the same storage medium so the potential available capacity
> is the same for the two.
>
>
>
>
>
> Cheers
>
>
>
> Ruben
>
>
>
>
> Thanks you for your time
>
> *De :* Ruben S. Montero [mailto:rsmontero at opennebula.org]
> *Envoyé :* mercredi 23 avril 2014 11:57
> *À :* Eloi - CODE42
> *Cc :* users at lists.opennebula.org
> *Objet :* Re: [one-users] [Datastores] Image Datastore has no size
>
>
>
> The information is gathered by
> /var/lib/one/remotes/datastore/vmfs/monitor. Can you check that
> /vmfs/datastores/1 exists at 172.20.10.12 and that oneadmin can excute
>
>
>
> du -sLm /vmfs/datastores/1
>
> df -m
>
>
>
> Cheers
>
>
>
>
>
> On Wed, Apr 23, 2014 at 11:47 AM, Eloi - CODE42 <eloi at code42.fr> wrote:
>
>  Hi Ruben
>
>
> SSH is fine between the two, oneadmin can login without password.
>
> No errors in /var/log/one/oned.log neither. Maybe there is a way to resize
> the datastore manually ?
>
> Also, same problem occurs when I try to create a new datastore : no
> capacity at all.
>
>
>
> *De :* Ruben S. Montero [mailto:rsmontero at opennebula.org]
> *Envoyé :* mercredi 23 avril 2014 11:38
> *À :* Eloi - CODE42
> *Cc :* users at lists.opennebula.org
> *Objet :* Re: [one-users] [Datastores] Image Datastore has no size
>
>
>
> Hi
>
>
>
> Can you check oned.log? May be the front-end cannot access 172.20.10.12
> through ssh?
>
>
>
> Cheers
>
>
>
>
>
> On Wed, Apr 23, 2014 at 9:57 AM, Eloi - CODE42 <eloi at code42.fr> wrote:
>
>  Hi everyone.
>
> I can’t possibly upload an image to OpenNebula because my Image Datastore
> size is non-existent (not empty, non-existent, like 0MB).
> I’m new to OpenNebula and installed it  by following the QuickStart guide
> for WMware :
> http://docs.opennebula.org/4.4/design_and_installation/quick_starts/qs_centos_vmware.html
>
>
> Here is the configuration of the two datastores I created :
>
>
>
> *Datastore 0*
>
> SHARED      YES
>
> BASE_PATH   /vmfs/volumes
>
> TYPE        SYSTEM_DS
>
> TM_MAD      vmfs
>
>
> *Datastore 1*
>
> LN_TARGET         NONE
>
> BASE_PATH         /vmfs/volumes
>
> TYPE              IMAGE_DS
>
> DS_MAD            vmfs
>
> CLONE_TARGET      SYSTEM
>
> DISK_TYPE         FILE
>
> BRIDGE_LIST       172.20.10.12
>
> TM_MAD            vmfs
>
>
>
> Here is a screencap from sunstone Dashboard:
>
> As you can see it is showing a third datastore named “file” with
> filesystem type. I can’t, however, upload anything on that one because the
> wizard in the  Create Image section won’t let me choose any other
> datastores than the “defaults” one, which is the Image one, and has no
> space at all.
>
>
>
> On the ESX host, the DataStores are mounted and seems to be working fine :
>
>
> I tried to upload and .iso via ESX on Datastore “1”. That worked, but in
> opennebula display it has being placed on the datastore 2 (as you can see
> on the previous screencap, there is a 2.2GB space used on datastore 2).
> Therefore I think there might be a confusion between the Image & Files
> Datastores in OpenNebula.
>
> Any idea of what could be the roots of the problem ? And besides that, how
> could I solve this ? Should I recreate new datastores, and mount them on
> the ESX? If yes, how should I proceed ?
>
> Thanks in advance for your help.
>
>
>
> Eloi Guillaud – Code42
>
>
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>
>
>
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>
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>  <http://lists.opennebula.org/listinfo.cgi/users-opennebula.org>
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>
> *--  <http://lists.opennebula.org/listinfo.cgi/users-opennebula.org>*
>
> Ruben S. Montero, PhD
> Project co-Lead and Chief Architect<http://lists.opennebula.org/listinfo.cgi/users-opennebula.org>
>
> OpenNebula - Flexible Enterprise Cloud Made Simple
>  <http://lists.opennebula.org/listinfo.cgi/users-opennebula.org>
> www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
>
>
>
>
>
> --
>
> --
>
> Ruben S. Montero, PhD
> Project co-Lead and Chief Architect
>
> OpenNebula - Flexible Enterprise Cloud Made Simple
> www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
>
>
>
>
>
> --
>
> --
>
> Ruben S. Montero, PhD
> Project co-Lead and Chief Architect
>
> OpenNebula - Flexible Enterprise Cloud Made Simple
> www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
>



-- 
-- 
Ruben S. Montero, PhD
Project co-Lead and Chief Architect
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
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