![]() Read/write, shareable: With this option, youĬan attach a volume to more than one instance at a time and those instances can With this option, an instance can read and write data to the volume. Read/write: This is the default option for volume attachments.When you attach a block volume, you can specify one of the following options for access type: See Creating an Instance for steps to launch an instance based on a boot volume. ![]() This allows you to easily switch from a bare metal instance to a VM instance and vice versa, or scale up or scale down the number of cores for an instance. When you terminate an instance, you can keep the associated boot volume and use it to launch a new instance with a different instance type or shape. All volumes are automatically replicated for you, helping to protect against data loss, see Block Volume Durability. From there, you connect and mount the drive from that instance's guest OS to have access to all of your data.Īdditionally, Block Volume volumes offer a high level of data durability compared to standard, attached drives. To move your volume to another instance, unmount the drive from the initial instance, terminate the iSCSI connection, and attach the volume to the second instance. Any data remains intact until you reformat or delete the volume. This data persistence enables you to migrate data between instances and ensures that your data is safely stored, even when it is not connected to an instance. Scenario B: Persistent and Durable StorageĪ Block Volume volume can be detached from an instance and moved to a different instance without the loss of data. The volume can then be mounted and used by your instance. After the volume is attached, you connect to the volume from your instance's guest OS using iSCSI. Then, you attach the volume to an instance using a volume attachment. After you have launched an instance and set up your cloud network, you can create a block storage volume through the Console or API. Scenario A: Expanding an Instance's StorageĪ common usage of Block Volume is adding storage capacity to an Oracle Cloud Infrastructure instance. ![]() See Boot Volumes for more information.įor additional Oracle Cloud Infrastructure terms, see the Glossary. Paravirtualized: A virtualized attachment available for VMs.Ī detachable block storage device that allows you to dynamically expand the storage capacity of an instance.ĭevice that contains the image used to boot a Compute instance. Volume attachment: There are two types of volume attachments:Ī TCP/IP-based standard used for communication between a volume and attached instance.
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