IBM DS8000 Computer Drive User Manual


 
Chapter 3. Storage system LPARs (Logical partitions) 53
An additional 256 DDMs
Up to 128 DDMs per storage facility image
The second Model 9AE (expansion frame) has:
An additional 256 DDMs
Up to 128 drives per storage facility image
A fully configured DS8300 with storage facility images has one base frame and two expansion
frames. The first expansion frame (9AE) has additional I/O drawers and disk drive modules
(DDMs), while the second expansion frame contains additional DDMs.
Figure 3-5 provides an example of how a fully populated DS8300 might be configured. The
disk enclosures are assigned to storage facility image 1 (yellow, or lighter if not viewed in
color) or storage facility image 2 (green, or darker). When ordering additional disk capacity, it
can be allocated to either storage facility image 1 or storage facility image 2. The cabling is
pre-determined and in this example there is an empty pair of disk enclosures assigned for the
next increment of disk to be added to storage facility image 2.
Figure 3-5 DS8300 example configuration
Model conversion
The Model 9A2 has a fixed 50/50 split into two storage facility images. However, there are
various model conversions available. For example, it is possible to switch from Model 9A2 to a
full system machine, which is the Model 922. Table 3-1 shows all possible model conversions
regarding the LPAR functionality.
Processor
complex 1
Processor
complex 0
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Storage
enclosure
Empty storage
enclosure
Empty storage
enclosure
Storage
enclosure
Storage
enclosure
I/O drawer
4
I/O drawer
5
I/O drawer
6
I/O drawer
7
I/O drawer
0
I/O drawer
1
I/O drawer
2
I/O drawer
3
Storage
Facility
Image 1
Storage
Facility
Image 1
Storage
Facility
Image 2
Storage
Facility
Image 2