[one-users] base path of vmfs system datastore

[Daems Dirk]

Hi,

I created both the system and image datastores.
In the oned.log file I see that my new 'VMWareImageDatastore' can be monitored successfully.

However, when I try to deploy an image in that VMFS image datastore, I get an error indicating that there is not enough space in the datastore.
But in the vSphere client there is 275 GB free space and the image is several times smaller.

Currently (for testing), my VMFS volumes are not exported through a SAN, so I don't use iSCSI but a serial attached SCSI drive.
Could that be the problem? Is it mandatory to use iSCSI?
>From the documentation [1] it looks like it is mandatory to use iSCSI; see 'Infrastructure Configuration', second bullet:

"The ESX servers needs to present or mount as iSCSI both the system datastore and the image datastore (naming them with just the <datastore-id>, for instance 0 for the system datastore and 1 for the image datastore)."

[1] - http://opennebula.org/documentation:rel4.2:vmware_ds#configuring_the_datastore_drivers_for_vmware

Regards,
Dirk

-----Original Message-----
From: Tino Vazquez [mailto:cvazquez at c12g.com]
Sent: donderdag 28 november 2013 18:05
To: Daems Dirk
Cc: users at lists.opennebula.org
Subject: Re: [one-users] base path of vmfs system datastore

Hi,

You are right, there is a chicken-and-egg problem with VMware and DS 0 and 1 in OpenNebula 4.2 that prevents the use of the default datastores in VMware. This is fixed in the imminent OpenNebula 4.4 Retina.

The workaround is to simply use two new datastores (say, 100 and 101), configure them with the appropriate BRIDGE_LIST and 'vmfs' drivers and DATASTORE_LOCATION, rename the DS in the ESX hosts and you should be good to go.

Regards,

-Tino

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Constantino Vázquez Blanco, PhD, MSc
Senior Infrastructure Architect at C12G Labs www.c12g.com | @C12G | es.linkedin.com/in/tinova

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On Thu, Nov 28, 2013 at 5:56 PM, Daems Dirk <dirk.daems at vito.be> wrote:
> Hi list,
>
>
>
> I am quite new to OpenNebula.
>
> I installed the OpenNebula 4.2 client and configured my VMWare
> hypervisor. I can create an OpenNebula host which connects to the
> VMWare hypervisor without problems.
>
>
>
> However, I can't seem to get the pre-defined system and image
> datastores to work with the vmfs datastore type. I set the
> DATASTORE_LOCATION in the oned.conf file to /vmfs/volumes. SSH access
> for the oneadmin account is working fine. I also updated the
> pre-defined system (0) and image (1) datastores using the correct
> attribute values for DS_MAD, TM_MAD and BRIDGE_LIST. In the vSphere
> client, I created VMFS datastores reflecting the datastore id's 0 and 1.
>
>
>
> Now the base path of these datastores still points to
> /var/lib/one/datastores/0 and /var/lib/one/datastores/0 which is not
> correct.
>
> I would think they need to point to /vmfs/volumes/0 and /vmfs/volumes/1?
>
>
>
> Is there a way to change this? I could also create additional system
> and image datastores but I though the system datastore should have id
> 0. In the vmfs documentation there's a note that the
> DATASTORE_LOCATION should be configured before creating the datastore.
> However, as the system datastore is auto-created how can one change the DATASTORE_LOCATION before creation?
>
>
>
> Regards,
>
> Dirk
>
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