Using Backup And Restore Methods To Migrate Data; Migrating Data From An Ibm System I Host System To The Ds8000 - IBM DS8000 User Manual

v Unmount both file systems and mount the new file system over the original
You will probably be unable to use the volume management methods if the
database uses volume serial numbers in its licensing code or validity checking. If
the database uses licensing methods or validity checking, you might be able to
only export the database from its old locations or import the database to its new
location.
The database software provides the mechanism to move the data. This can take the
form of a standard database backup and restore if it does not have any specific
tools for moving data.

Using backup and restore methods to migrate data

Use the following information as a guide for how to use the backup and restore
methods to migrate data.
In some cases, the only method that is available to transfer data is to back it up to
tape and then restore it to the new disk. This method is slower because tape
devices require that you move the data twice. However, if you are removing disks
before you install the DS8000, the only way to move the data is with a tape device.
You can find a number of different archive utilities on UNIX systems. The cpio
command can also create and read archives on tape devices. Use the -o (output)
option to create archives, and use the -i (input) option to read and extract data
from archives.
AIX provides a pair of commands: backup and restore. The backup command has
two different methods of creating archives, either by file name or by the i-node.
Use the restore command to read any archive that is created by the backup
command. Solaris and HP-UX provide the dump and restore commands, which
backup and restore data by the i-node.
The tar command is available on all UNIX systems that support the DS8000 and is
another way to create and extract tape archives. Use the c option to create archives.
Use the x option to extract files from archives.

Migrating data from an IBM System i host system to the DS8000

Use the following information as a guide to determine how to migrate data from a
System i host system to the DS8000.
When you create the System i volume, you can create it as a protected or
unprotected volume. This creation enables you to see the protected and
unprotected models. Unprotected models can be software mirrored.
The DS8000 supports 2107/242x device types with model A81-A87 (unprotected)
and A01-A07 (protected) and you need a level of i5/OS or OS/400 that supports
these. The model numbers correspond to 8.56 GB (A01/A81), 17.54 GB (A02/A82),
35.16 GB (A05/A85), 36 GB (A03/A83), 70.56 GB (A84/A04),141.12GB (A86/A06),
and 282.25 GB (A87/A07).
System i hosts require a separate device address for each drive in the subsystem.
The DS8000 meets this requirement by reporting unique addresses for each virtual
drive that is defined to the System i host. Up to a maximum of 32 LUNS per
mount point directory when the migration is complete.
Chapter 9. Migrating data to a storage unit
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