Myvolico/Cloud Server User Guide 2
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Migrating a Disk

The cloud portal allows hot and cold migration of virtual server disks:

  • Hot migration: The migration of disks between compute resources that share common data stores (or data store zones).
  • Cold migration: The migration of disks between compute resources with local storage or across compute zones.

You can migrate disks of your virtual servers to other data stores, which are allocated to the same Compute resource. Unlike Virtual server migration – disk migration requires the reboot of the virtual server (despite the template it is based on).

Logging into MyVolico Account

  1. Log in to your MyVolico account.
    1. If this is your first time accessing the portal, use the forgot password option to setup your account.
  2. Click on "Access Cloud" from the dashboard.
  3. You will be directed to the cloud portal.

Steps to Migrate a Disk

  1. From the cloud dashboard, click on Virtual Servers menu.
  2. Click the label of the virtual server you're interested in.
  3. Click the Storage tab, then select Disks.
  4. Click the Actions button next to the disk you want to move to another data store, then click the Migrate button.
  5. On the screen that appears, select the following options:
    • Type - select the cold or hot migration type
    • Data store - select the target data store to migrate the disk
  6. Click the Start Migrate button.

Restrictions

  • The hot migration will work only when the virtual server is running on CentOs 7 KVM compute resources, and they can be migrated only to CentOs 7 KVM compute resources.
  • The hot migration option appears only if the virtual server is online and your Quick Emulator (QEMU) version is later than 2.6.
  • We recommend creating a disk backup before starting the migration process to avoid potential data loss.
  • It is recommended to take a backup of a virtual server before migrating the virtual server disk. In case of any issues during virtual server disk migration, you will be able to restore the virtual server from the backup.
  • You can only migrate disks to data stores in data store zones assigned to your bucket.
  • You cannot migrate a disk to a data store with less capacity than the disk size.
  • Integrated Storage disks cannot be migrated if they have snapshots.
  • If you move an 850GB disk between aggregates with 10GB actual usage, the 'dd' image of the local volume manager will take 850GB space, because the entire local volume manager is copied, including zero 'dspace which may not be able to be recovered.


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