Dell MD3000 owner manual Using Your RAID Enclosure

Models: MD3000

1 112
Download 112 pages 15.6 Kb
Page 43
Image 43

When you migrate a physical disk or a disk group from one MD3000 array to another, the MD3000 you migrate to will recognize any data structures and/or metadata you had in place on the migrating MD3000. However, if you are migrating from a non-PV controller, the MD3000 array will not recognize the migrating metadata. In this case, the RAID controller will initialize the physical disks and mark them as unconfigured capacity.

NOTE: Only disk groups and associated virtual disks with all member physical disks present can be migrated from one storage array to another. Dell recommends that you only migrate disk groups that have all their associated member virtual disks in an optimal state.

NOTE: The number of physical disks and virtual disks that a storage array supports limits the scope of the migration.

Use either of the following methods to move disk groups and virtual disks:

Hot virtual disk migration — Disk migration with the destination storage array power turned on.

Cold virtual disk migration — Disk migration with the destination storage array power turned off.

NOTE: To ensure that the migrating disk groups and virtual disks are correctly recognized when the target storage array has an existing physical disk, use hot virtual disk migration.

When attempting virtual disk migration, follow these recommendations:

Moving physical disks to the destination array for migration — When inserting drives into the destination storage array during hot virtual disk migration, wait for the inserted physical disk to be displayed in the MD Storage Manager before inserting the next physical disk.

NOTICE: Without the delay between drive insertions, the storage array can become unstable and manageability is temporarily lost.

Migrating virtual disks from multiple storage arrays into a single storage array — When migrating virtual disks from multiple, different storage arrays into a single destination storage array, move all of the physical disks from the same storage array as a set into the new destination storage array. Ensure that all of the physical disks from a storage array are migrated to the destination storage array before starting migration from the next storage array.

NOTE: If the drive modules are not moved as a set to the destination storage array, the newly relocated disk groups might not be accessible.

Migrating virtual disks to a storage array with no existing physical disks — When migrating disk groups or a complete set of physical disks from a storage array to another storage array that has no existing physical disks, turn off the destination storage array. After the destination storage array has been turned on and has successfully recognized the newly migrated physical disks, migration operations can continue.

NOTE: Disk groups from multiple storage arrays should not be migrated at the same time to a storage array that has no existing physical disks. Use cold virtual disk migration for the disk groups from one storage array.

Using Your RAID Enclosure

43

Page 43
Image 43
Dell MD3000 owner manual Using Your RAID Enclosure

MD3000 specifications

The Dell MD3000 is a renowned storage area network (SAN) solution recognized for its flexibility, scalability, and high performance. Designed to meet the demands of small to medium-sized businesses (SMBs) and enterprise environments, the MD3000 offers a plethora of features that enhance data management and storage capabilities.

One of the standout features of the MD3000 is its modular design. This allows users to start with a basic configuration and expand their storage capacity as their needs grow. The system can support up to 30 drives, including both SATA and SAS drives, giving users the ability to optimize cost and performance based on their specific requirements. With support for a diverse range of drive types, the MD3000 ensures that businesses can implement a storage solution that aligns perfectly with their performance and budgetary needs.

The MD3000 leverages advanced technologies to deliver exceptional performance and reliability. It is equipped with Intelligent Disk Pools that optimize the allocation of data across drives, ensuring improved access speeds and overall system efficiency. This dynamic management of data not only enhances performance but also extends the lifespan of the storage devices.

Data protection is another critical component of the MD3000. The system features various RAID configurations, allowing users to choose the level of redundancy that suits their operational requirements. Additionally, robust snapshot capabilities help businesses create point-in-time copies of their data, enabling quick recovery in case of data loss or corruption.

Connectivity options are abundant with the MD3000. It supports both iSCSI and Fibre Channel, providing users the flexibility to integrate it seamlessly into existing network infrastructures. This adaptability makes it an attractive option for organizations looking to modernize their storage systems without overhauling their entire architecture.

Furthermore, the MD3000 is equipped with a user-friendly management interface. The GUI enables quick provisioning and monitoring of storage resources while providing insightful analytics and alerts, allowing IT teams to maintain optimal performance with ease.

In summary, the Dell MD3000 is a highly versatile and efficient storage solution that meets diverse organizational needs. Its scalable architecture, advanced features, and strong support for data protection and management make it an ideal choice for businesses aiming to enhance their storage capabilities while ensuring reliability and performance. Whether for virtualization, database management, or general storage needs, the MD3000 stands out as an excellent investment in enterprise storage technology.