NOTE: If you do not intend to re-create the snapshot virtual disk at a later time, in the Logical pane, select the snapshot virtual disk, and select Virtual Disk→ Delete to remove it. The associated snapshot repository virtual disk is also removed. Refer to the PowerVault Modular Disk Storage Manager online help topics for more information on removing a snapshot virtual disk.

NOTE: The SMdevices utility displays the snapshot virtual disk in its output, even after the snapshot virtual disk is disabled.

To disable a snapshot virtual disk:

1In the AMW, select the Logical tab, select the snapshot virtual disk, and select Virtual Disk→ Snapshot→ Disable.

2In the text box, type yes and click OK.

The snapshot virtual disk is disabled. The associated snapshot repository virtual disk does not change status. The copy-on-write activity to the snapshot repository virtual disk stops until the snapshot virtual disk is re- created.

Preparing Host Servers to Re-create a Snapshot Virtual Disk

NOTE: Before you create a new snapshot of a source virtual disk, stop any data access (I/O) activity or suspend data transfer to the source virtual disk and snapshot virtual disk to ensure that you capture an accurate snapshot of the source virtual disk. Close all applications, including Windows Internet Explorer, to make sure all I/O activity has stopped.

NOTE: Removing the drive letter of the associated virtual disk in Windows or unmounting the virtual drive in Linux helps to guarantee a stable copy of the drive for the Snapshot.

Before re-creating a snapshot virtual disk, both the host server and the associated virtual disk you are re-creating have to be in the proper state.

To prepare your host server and virtual disk:

1Stop all I/O activity to the source and snapshot virtual disk (if mounted).

2Using your Windows system, flush the cache to both the source and the snapshot virtual disk (if mounted). At the host prompt, type

SMrepassist -f <filename-identifier>

and press <Enter>. For more information, see "SMrepassist Utility" on page 243.

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Configuration: Premium Feature—Snapshot Virtual Disks

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MD3200i, MD3220i specifications

The Dell MD3220i and MD3200i are part of Dell's extensive line of modular storage solutions, designed to support organizations in optimizing their data management and scalability requirements. These models offer reliable performance and flexible features, making them suitable for various workloads including virtualization, cloud storage, and disaster recovery.

One of the standout features of the MD3220i and MD3200i is their support for iSCSI storage networking. By utilizing the Internet Small Computer Systems Interface (iSCSI) protocol, these systems provide organizations with a cost-effective way to connect their storage over existing network infrastructure, enabling efficient data transfers and management.

Both models are equipped with dual controllers that ensure high availability and failover capabilities, which are crucial for meeting uptime requirements in mission-critical environments. The dual controllers also facilitate load balancing and increase overall system performance, as they allow multiple paths to the storage, enhancing I/O performance.

Scalability is another key characteristic of the MD3220i and MD3200i. These storage arrays can be expanded to meet growing storage demands, supporting up to 240TB of raw capacity with up to 16 additional expansion enclosures. This flexibility allows organizations to start with a smaller configuration and grow their storage capabilities without a complete overhaul of the existing infrastructure.

The units also support multiple disk types, including traditional spinning disks, solid-state drives (SSDs), and a combination of both. This versatility enables users to tailor storage configurations to their specific performance and budgetary needs. Furthermore, the systems feature advanced data management technologies such as snapshots and remote replication, providing essential tools for data protection.

With their ease of management, the MD3220i and MD3200i are designed for straightforward configuration and operation. The intuitive management interfaces allow IT professionals to monitor performance, configure storage, and manage data effectively, ensuring businesses can maintain optimal system availability.

In summary, the Dell MD3220i and MD3200i are robust, scalable, and versatile storage solutions that cater to diverse organizational needs. Their integrated technologies, such as iSCSI support, dual controller architecture, and advanced data management features, make them an ideal choice for modern data centers looking to enhance storage capabilities while ensuring reliability and performance.
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