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Chapter 3. Storage system LPARs (Logical partitions) 57
The hardware-based LPAR implementation ensures data integrity. The fact that you can
create dual, independent, completely segregated virtual storage systems helps you to
optimize the utilization of your investment, and helps to segregate workloads and protect
them from one another.
The following are examples of possible scenarios where storage facility images would be
useful:
Two production workloads
The production environments can be split, for example, by operating system, application,
or organizational boundaries. For example, some customers maintain separate physical
ESS 800s with z/OS hosts on one and open hosts on the other. A DS8300 could maintain
this isolation within a single physical storage system.
Production and development partitions
It is possible to separate the production environment from a development partition. On one
partition you can develop and test new applications, completely segregated from a
mission-critical production workload running in another storage facility image.
Dedicated partition resources
As a service provider you could provide dedicated resources to each customer, thereby
satisfying security and service level agreements, while having the environment all
contained on one physical DS8300.
Production and data mining
For database purposes you can imagine a scenario where your production database is
running in the first storage facility image and a copy of the production database is running
in the second storage facility image. You can perform analysis and data mining on it
without interfering with the production database.
Business continuance (secondary) within the same physical array
You can use the two partitions to test Copy Services solutions or you can use them for
multiple copy scenarios in a production environment.
Information Lifecycle Management (ILM) partition with fewer resources, slower DDMs
One storage facility image can utilize, for example, only fast disk drive modules to ensure
high performance for the production environment, and the other storage facility image can
use fewer and slower DDMs to ensure Information Lifecycle Management at a lower cost.
Figure 3-8 on page 58 depicts one example for storage facility images in the DS8300.