Storage and Snapshots

Ucloud Storage provides fast and reliable storage for I/O-intensive applications. In order to meet your business requirements, you can select Standard or Enterprise Block Storage volumes, both of which are connected to Cloud Servers via our high-speed network. There is a constant need for storage in any enterprise, and day-by-day the need for storage continually increases. In fact, investment in storage is one of the major contributors to IT costs.

Reliable I/O for your cloud applications

Emerging applications require reliable storage IOPs (Input/output Operations Per Second) to perform consistently and reliably. Based upon the performance level required for your application Ucloud provides the required IOPs.

High Speed Data

You can enjoy our high speed 20 GB Ethernet internal network connection to your Cloud Block Storage volume if you use our Performance Cloud Servers. A high speed network provides relief from potential I/O bottlenecks. Ucloud Storage increases throughput and higher performance for your applications.

Snapshot

A virtual machine (VM) snapshot is a record of a running virtual machine at a point in time. When you take a snapshot of a VM, its storage information (the data on the hard drive) and metadata (configuration information) is also saved. Where necessary, I/O is temporarily halted while the snapshot is being taken to ensure that a self-consistent disk image can be captured.

Unlike VM exports, snapshots can be created without first shutting down the VM. A snapshot is similar to a normal VM template but it contains all the storage and configuration information of the original VM, including networking information. Snapshots provide a fast way of creating templates that can be exported for backup purposes and then restored, or that can be used to quickly create new VMs.

Disk-only snapshots store a VM's configuration information (metadata) and disks (storage), allowing them to be exported and restored for backup purposes. This type of snapshot is crash-consistent and can be performed on all VM types, including Linux VMs.

In addition to saving the VM's metadata and disks, disk and memory snapshots also save the VM's memory state (RAM). Reverting back to a disk and memory snapshot does not require a reboot of the VM, and VMs can be running or suspended when the snapshot is taken. Disk and memory snapshots can be useful if you are upgrading or patching software, or want to test a new application, but also want the option to be able to get back to the current, pre-change state (RAM) of the VM.

Accessing Orphaned Snapshots

Note that if you take snapshots of a VM and subsequently delete the original VM, you can still access those snapshots: in Folder View on the Resources pane. Click to expand the Types group and then expand the Snapshots group to view all available snapshots..