Required Hardware Components To Build A Storage Image; I/O Resources; Storage Image Resource Allocation In The Processor Complexes Of The Ds8300 - IBM DS8000 User Manual

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Required hardware components to build a storage image

I/O resources

v Device adapter slots.
v Storage enclosure slots.
v RIO-G bus bandwidth
When you build a storage image, you need to consider your I/O resources, the
processor and memory allocations, and the RIO-G interconnect separation.
The Hardware Management Console (HMC) manages the resource allocation on a
System p host between LPARs. However, the DS8300 comes preconfigured with all
required LPAR resources assigned to either storage image.
Figure 9 shows the split of all available resources between the two storage images.
Each storage image has 50% of all available resources.
Storage Image 1
Processor complex 0
Processors 2 Processors
RIO-G interface
RIO-G interface
Memory
SCSI controller
A A'
Ethernet-Port
boot data data boot data data
C C'
Ethernet-Port
boot data data boot data data
Memory
SCSI controller
RIO-G interface
2 Processors
RIO-G interface RIO-G interface
Storage Image 2
Figure 9. Storage image resource allocation in the processor complexes of the DS8300
The I/O resources that are required for a storage image consist of various
components.
For one storage image, the following hardware resources are required:
v 2 SCSI controllers with 2 disk drives each
v 2 Ethernet ports (to communicate with the HMC)
v 1 Thin Device Media Bay (for example, a CD or a DVD which can be shared
between the LPARs)
Each storage image has two physical disk drives in each processor complex. Each
disk drive contains three logical volumes, the boot volume and two logical
volumes for the memory save dump function. These three logical volumes are
HA HA DA HA HA DA
I/O drawer
0
HA HA DA HA HA DA
I/O drawer
1
S-HMC
HA HA DA HA HA DA
I/O drawer
3
HA HA DA HA HA DA
I/O drawer
2
Chapter 7. Storage system logical partition overview
Processor complex 0
Processors 2 Processors
RIO-G interface
RIO-G interface
Memory
SCSI controller
B B'
Ethernet-Port
boot data data boot data data
D D'
Ethernet-Port
boot data data boot data data
Memory
SCSI controller
RIO-G interface
2 Processors
RIO-G interface RIO-G interface
99