•Recovered media error—Data could not be read by the physical disk on the first attempt but was successfully read on a subsequent attempt. Data is rewritten to the physical disk and verified and the error is reported to the event log.

•Redundancy mismatches error—The first 10 redundancy mismatches that are found on the virtual disk are reported to the event log.

•Unfixable error—Data could not be read and parity or redundancy information could not be used to regenerate the data. For example, redundancy information cannot be used to reconstruct the data on a degraded virtual disk. The error is reported to the event log.

For more information, see the PowerVault Modular Disk Storage Manager online help topics.

Changing Media Scan Settings

To change the media scan settings:

1In the AMW, select the Logical tab and select any virtual disk.

2Select Virtual Disk→ Change→ Media Scan Settings. The Change Media Scan Settings window is displayed.

3Deselect Suspend media scan if selected.

4In Scan duration, enter or select the duration (in days) for the media scan.

The media scan duration specifies the number of days for which the media scan runs on the selected virtual disks.

5To disable media scans on an individual virtual disk, select the virtual disk in the Select virtual disks to scan area, and deselect Scan selected virtual disks.

6To enable media scans on an individual virtual disk, select the virtual disk in the Select virtual disks to scan area, and select Scan selected virtual disks.

7To enable or disable the consistency check, select either With consistency check or Without consistency check.

NOTE: A consistency check scans the data blocks in a RAID Level 5 virtual disk, or a RAID Level 6 virtual disk and checks the consistency information for each block. A consistency check compares data blocks on RAID Level 1 mirrored physical disks. RAID Level 0 virtual disks have no data consistency.

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Configuration: Disk Groups and 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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