This page is for all the users that already have assigned CINECA HPC cloud resources (reachable at the url https://cloud.hpc.cineca.it ) and
expressed their willingness to migrate to the new ADA cloud CINECA HPC infrastructure.
The new ADA cloud CINECA HPC infrastructure is based on OpenStack Wallaby version, and the Horizon dashboard is reachable at the url https://adacloud.hpc.cineca.it .
All the migrated projects will have a new name, and you will receive an email when your new migrated project will be created into the UserDB portal https://userdb.hpc.cineca.it .
By login into the UserDB portal, you will find your new project listed among your projects.
Afted one day from the notification email, you will be able to login into the OpenStack dashboard https://adacloud.hpc.cineca.it e start the setup of the cloud environment.
Please, note that:
- network, subnet and router will not be migrated from the old infrastructure, so create them. Refer to the link "How to create an instance of virtual machine in your Project" in the user guide documentation page for creation instruction.
- security rules and security groups will not be migrated from the old infrastructure, so create them.
- user key pairs will not be migrated from the old infrastructure, so import them if needed.
Migration of the OpenStack objects: virtual machines (VM), cinder volumes and images.
All the OpenStack objects will be transferred as cinder volumes:
- the ephemeral VM will be available on ADA as a bootable cinder volume
- the glance images must be converted in volume on the old cloud infrastructures before and, then, them will be transferred on ADA as a volume.
For each project, all the objects that you want migrate, listed in the email that you wrote us in June, will be hot-mirrored, so that no long downtime will occurred.
In other terms, we will activate the mirroring of VM and volumes while they are up&running in the old infrastructure.
At the end of the mirroring phase, we will ask you to shut down your VMs and detach the volumes in order to finalize the mirroring.
To shut down your VMs in a secure way, please:
- login into your VM
- stop the users services (if present)
- umount external volume (both cinder volume and or volumes exported via NFS or FUSE)
- check the /etc/fstab file: if it is set the automatic mount of the external volumes, please comment such lines. Take care to not comment the mount of the root disk.
- shut down the VM. The VM must be shutoffed during the final phase of the migration process.
At the end of the migration, for each VM, volume and image, you will receive an email with
- the name of the object (VM, volume or image)
- a "transfer id"
- a "authorization key"
For each object, please, select the project on which such object has to be stored,
Click on "Project → Volumes → Volumes" and then click on the button "Accept Transfer" on the right of the page. Insert the "transfer id" and "transfer key" provided in the email.
At the end of the transfer, you will have everything listed in the "Volumes" page.
Restart the VM just transferred
To restart a just transferred VM in the new infrastructure, select the corresponding volume, click on "Edit" button at the right side of the page and check "Bootable".
Starting from this bootable volume you can launch your instance VM.
- Boot source: When you launch the new istance, select "Volume" as boot source, then select the bootable volume just transferred and remember to select "NO" as option of "Delete Volume on Instance Delete".
- Flavor: Choose the flavor amog those defined on ADA How to: Quotas, Flavors and Images for each project#Flavors. Take care that the name and quota are different respect to those defined on the old infrastructure.
- Keypair: since the VM has been migrated, the old way to login is again available. If you want, you can add a new keypair to login in the VM.
- Associate a new Floating IP: After the creation of the virtual machine, a new floating IP must be associated. If there is an hostname - floating IP association, or a NFS export to reconfigure, please reply to the email in which you asked the migration, and communicate the operation you want and the new floating IP.
- Attach external cinder volume: Remember to attach the external volume to the VM, if needed.
For any questions please write to superc@cineca.it .