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20.2.7 Cloning backup images between partitions
Cloning
installing a different machine or partition with that same image.
This section demonstrates the basic tasks required to do the following
operations:
Identify resources that may need to be supported for the cloning process.
Perform a system backup to a device assigned to the partition:
– Perform a basic boot and install using a DVD backup made from another
partition.
Perform a system backup to a remote device assigned to another partition:
– Perform a network boot.
– Perform a basic installation remotely across the network using a DVD
backup made from another partition.
Note: There are other variations to prepare for needed support or to enable
support at the time of install. However, these examples can be complicated
and relate to very specific scenarios. The processes described here are the
most direct and the least complicated.
Resource identification
When cloning, it is important to remember that an image from the source
machine or partition must have all of the needed device driver filesets and kernel
filesets installed to support the hardware of the new machine or partition.
In a partitioned environment, the need to identify the required device driver and
kernel filesets is greatly reduced.
Device driver filesets
The essential device drivers needed to support each partition are the same
across all of the partitions, because each partition exists on the same physical
machine. Examples of essential device drivers might be filesets to support SCSI
disk drives or the I/O bus.
However, each partition can have additional I/O slots assigned to it beyond the
minimal requirements for defining a partition. These I/O slots may have adapter
cards used to attach external devices. Various types of Ethernet adapters, or
even differential SCSI adapters used to attach tape libraries, are examples of
how these I/O slot allocations can be used. Each I/O component has an
associated device driver.
refers to creating a backup image of one machine or partition and
Chapter 20. Bare Machine Recovery
657
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