cloudstack-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Shreya Nair <shreya.n...@opcito.com>
Subject Re: DISCUSS : Vmware to Cloudstack migration support
Date Thu, 13 Jul 2017 13:52:41 GMT
Hello,

*An update to the migration task:*

We have installed Cloudstack onto a vm on VMware to work around the
cross-hypervisor migration issue. Now the underlying hypervisor would be
the ESXi server for both setups (VMware and Cloudstack).

Currently, we create the corresponding equivalent infrastructure on
CloudStack wrt vmware setup.  We create a zone, pod, cluster and host set
up with the underlying network infrastructure. However, while setting up
the storage (Primary storage at cluster-wide scope and Secondary storage at
zone-wide) the documentation mentions the following warnings:


   - *Primary storage warning:*
      - When using preallocated storage for primary storage, be sure there
      is nothing on the storage (ex. you have an empty SAN volume or
an empty NFS
      share). Adding the storage to CloudStack will destroy any existing data.
   - *Secondary storage warning:*
      - Ensure that nothing is stored on the server. Adding the server to
      CloudStack will destroy any existing data.


We have obtained the mysql dump of the datastore of the source VM on
VMware. The datastore, as you may be aware, is a logical container that
holds virtual machine files and other files necessary for VM operations. As
such, it may be logically mapped to the Secondary storage setup in the
CloudStack infrastructure.

Would it be possible to use the mysql dump from source to update the
Secondary storage?

Thanks & Regards,

Shreya

On Fri, Jul 7, 2017 at 4:04 PM, Paul Angus <paul.angus@shapeblue.com> wrote:

> Maybe you should try qemu-img instead.
>
>
> Kind regards,
>
> Paul Angus
>
>
> paul.angus@shapeblue.com
> www.shapeblue.com
> 53 Chandos Place, Covent Garden, London  WC2N 4HSUK
> @shapeblue
>
>
>
> From: Shreya Nair [mailto:shreya.nair@opcito.com]
> Sent: 07 July 2017 11:30
> To: users@cloudstack.apache.org; dev@cloudstack.apache.org
> Cc: Vinay Patil <vinay.patil@opcito.com>; Siddheshwar More <
> siddheshwar.more@opcito.com>
> Subject: Re: DISCUSS : Vmware to Cloudstack migration support
>
> Hi Paul,
> We explored the XenConvert solution. The XenConvert utility has been
> retired from XenServer 6.2 and upward. So the only solution would be using
> an old copy or trial version of Xen Conversion Manager.
>
> Instead of the qemu-img utility, we used the VirtualBox VBoxManage.exe to
> support conversion of *.VMDK file to VHD. This VHD file was used to create
> a CS template and create an instance. However, the VM was unable to mount
> the drives as it was unable to find xvdXX partitions
>
>
> I get the following error on CS instance on boot:
> [Inline image 2]
>
> and the logs shows us this:
>
> You might have to change the root from /dev/hd[a-d] to /dev/xvd[a-d]
>
>
>
> However, on using lsblk command on the source vmware instance, we realized
> that the partitions on SCSI storage devices (Used by vmware) are named as
> /dev/sdXX while Xen supports /dev/xvdXX.
> [Inline image 1]
>
> Note: VMware tools has been removed from VM prior to migration
>
>
>
> Thanks & Regards,
>
> Shreya
>
> On Thu, Jul 6, 2017 at 12:17 AM, Paul Angus <paul.angus@shapeblue.com<
> mailto:paul.angus@shapeblue.com>> wrote:
> There used to be a XenConvert utility that you do that conversion for
> you.  I'm not sure that its about anymore, but a bit of googling might dig
> up a copy.
>
> Alternatively there are linux and Windows versions of qemu-img convert ,
> which usually does a pretty good job of disk image conversions
>
> Otherwise you could use a P2V backup/recovery tool with an agent that runs
> inside your VMs
>
>
>
> Kind regards,
>
> Paul Angus
>
> paul.angus@shapeblue.com<mailto:paul.angus@shapeblue.com>
> www.shapeblue.com<http://www.shapeblue.com>
> 53 Chandos Place, Covent Garden, London  WC2N 4HSUK
> @shapeblue
>
>
>
>
> -----Original Message-----
> From: Shreya Nair [mailto:shreya.nair@opcito.com<mailto:
> shreya.nair@opcito.com>]
> Sent: 05 July 2017 09:22
> To: users@cloudstack.apache.org<mailto:users@cloudstack.apache.org>
> Subject: Re: DISCUSS : Vmware to Cloudstack migration support
>
> Hi Oliver,
>
> We are trying to migrate the vSphere environment to cloudstack (based on
> XenServer) due to some internal product dependency which can be addressed
> by the CloudStack environment.
>
>
> Thanks & Regards,
>
> Shreya
>
> On Tue, Jul 4, 2017 at 10:27 PM, Oliver Dzombic <info@ip-interactive.de<
> mailto:info@ip-interactive.de>>
> wrote:
>
> > Hi,
> >
> > just our of intrest:
> >
> > Why do you want to go away from vmware ?
> >
> > And why do you prefere xen and not kvm ( which is as you already
> > experienced much more tricky compared to kvm ) ?
> >
> >
> > --
> > Mit freundlichen Gruessen / Best regards
> >
> > Oliver Dzombic
> > IP-Interactive
> >
> > mailto:info@ip-interactive.de<mailto:info@ip-interactive.de>
> >
> > Anschrift:
> >
> > IP Interactive UG ( haftungsbeschraenkt ) Zum Sonnenberg 1-3
> > 63571 Gelnhausen
> >
> > HRB 93402 beim Amtsgericht Hanau
> > Geschäftsführung: Oliver Dzombic
> >
> > Steuer Nr.: 35 236 3622 1
> > UST ID: DE274086107
> >
> >
> > Am 04.07.2017 um 13:22 schrieb Shreya Nair:
> > > Hello,
> > >
> > > My team is working on a Vmware to Cloudstack migration task. The
> > CloudStack
> > > environment is set up on the Xenserver hypervisor.
> > >
> > > We are able to export a VM on vsphere to OVF template which also
> > > provides the OVF, VMDK disk image(s) and MF file for the particular VM.
> > > In order to create a CloudStack Template from these files, it can be
> > > done by 2 methods, namely, template creation from VHD(as the
> > > underlying hypervisor is XenServer) or template creation from ISO.
> > >
> > > VHD Template creation:
> > >  - The VMDK file (Obtained after export OVF operation of the VM) is
> > > converted to VHD format with VBoxManage.exe tool that is available
> > > with VirtualBox.
> > >  -  The VHD file can be used to create a CloudStack template and
> > > instantiate a VM.
> > >
> > >
> > > ISO Template creation:
> > >  - The OVF file (Obtained after export OVF operation of the VM) is
> > imported
> > > to Citrix XenCenter.
> > >  - XenCenter runs Operating system Fixup on the imported OVF file
> > > and creates a modified ISO file.
> > >  - The modified ISO file can be used for creating a template and
> > > instantiate a VM
> > >
> > > However, the newly created VM has booting issues as it requires "You
> > might
> > > have to change the root from /dev/hd[a-d] to /dev/xvd[a-d]"
> > > Is there an alternate way or support to migrate a vSphere VM to
> > CloudStack?
> > > Or a method to change the partitioning on the hard disk from sd[a-d]
> > > to xvd[a-d]
> > >
> > >
> > >
> > > Thanks & Regards,
> > >
> > > Shreya
> > >
> >
>
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message