Non-Disruptive Disk Migration

Transparently move contents from one disk to another

• Allows non-disruptive hardware disk upgrades
• Clears & reclaims space occupied on the original drive
• Provides pass-through access to drives previously used on other systems

Another by-product of making storage interchangeable using DataCore’s storage virtualization software is the ease with which you can relocate data from one physical disk to another, non-disruptively. We refer to it as virtual disk migration or volume replacement.

It comes in handy during hardware upgrades as you seamlessly roll in new equipment in place of older hardware. Having copied the contents to the new drives in the background, the software will zero out the original disk and reclaim its space into the free pool.

The more visual example below shows how easily you can replace storage devices in the background while applications continue to run uninterrupted. Sometimes the older equipment can be put to good use as a lower tier device for less demanding requirements, or it can be decommissioned altogether. The choice is yours.

SANsymphony-V also helps you to take previously formatted disks connected to other systems and place them under the DataCore virtualized storage environment. This is accomplished by passing through access to those drives once they are attached to a DataCore node. Generally, a drive will be in active pass-through mode, while its contents are mirrored in the background to a full-fledged virtual disk. At that point, the original drive can be wiped clean and its capacity absorbed into the larger disk space pool.