Migrating

Various data migration methods and services are available with your DS8000 system.

Migrating data to the DS8000 storage system
Ensure that your host or operating system is listed among the environments that are supported for data migration to the DS8000® storage system.
Data migration options
Your system administrator must select the data migration method that is the best compromise between efficiency and effect on your storage users. You must consider remapping, drive reformatting, and partitioning when you replace existing storage.
How to select a data migration method
The data migration method that you select must provide the best compromise between efficiency and impact on the system users. The selected method can provide a simple but robust method that minimizes user impact.
Migrating data from an IBM Z host system to the storage system
You can choose from several methods to migrate data from an IBM® Z host system to your storage system. The correct method depends on your environment and storage system.
Migrating data from a Windows host system
You can migrate data from a Windows Server 2012, 2016, or 2019 host system into your storage system. This task can be accomplished by mirroring the data and splitting the mirrors (similar to the method described for UNIX systems).
Using backup and restore methods to migrate data
Sometimes you must back up data to tape and then restore the data to the new disk.
Overview of AIX logical volume manager
The logical volume manager (LVM) software provides complete control over all disks and file systems. LVM also migrates data at a single logical volume level, a physical volume (DDM) level, or entire contents of a volume group.
Reformatting open system drives for migration
The 524-byte sector format is required for the migration of data from open system drives to the DS8000 storage system. You must back up data in temporary storage before you start the drive reformatting process.
Data migration from a UNIX based host system to a DS8000 storage system
Four methods are available for copying or moving data from a UNIX based host system to the DS8000 storage system.
Migrating data between DS8000 storage systems
Migrating data between DS8000 storage systems requires the use of Global Copy or IBM Metro Mirror. The migration of data also often requires moving or offloading workloads.