2. Accessing Virtuozzo Storage Clusters via iSCSI¶
Virtuozzo Storage allows you to export cluster disk space outside Virtuozzo Storage bounds to operating systems and third-party virtualization solutions. Using dedicated
vstorage-iscsi tools, you can export Virtuozzo Storage disk space as LUN block devices over iSCSI in a SAN-like manner.
In Virtuozzo Storage, you can create and run multiple iSCSI targets per Virtuozzo Storage cluster node. In turn, each iSCSI target can have multiple LUNs (virtual disks). At any given moment, each iSCSI target runs on a single Hardware node. Thanks to high availability, if a node fails, iSCSI targets hosted on it are moved to and relaunched on a healthy node.
The figure below shows a typical network configured for exporting Virtuozzo Storage disk space over iSCSI.
In this example are three Virtuozzo Hardware nodes working in a Virtuozzo Storage cluster. Two nodes host one iSCSI target each while the third hosts two iSCSI targets. Each node has a static or dynamic IP address assigned from the Storage BackNet (created along with the Virtuozzo Storage cluster) and the FrontNet. Each iSCSI target has a static IP address assigned from the FrontNet.
- 2.1. Preparing to Work with Virtuozzo Storage iSCSI Targets
- 2.2. Creating and Running Virtuozzo Storage iSCSI Targets
- 2.3. Listing Virtuozzo Storage iSCSI Targets
- 2.4. Transferring Virtuozzo Storage iSCSI Targets Between Virtuozzo Storage Nodes
- 2.5. Stopping Virtuozzo Storage iSCSI Targets
- 2.6. Deleting Virtuozzo Storage iSCSI Targets
- 2.7. Configuring Multipath I/O for Virtuozzo Storage iSCSI Targets
- 2.8. Managing CHAP Accounts for Virtuozzo Storage iSCSI Targets
- 2.9. Managing LUN Snapshots