Expansion Cabinet Configurations for ZS5-4 Racked System Performance Configurations
ZS5-4 Racked System performance configurations support multiple cabinets that allow for expansion of up to 30 additional disk shelves. Each expansion cabinet accommodates a maximum of 10 DE3-24C disk shelves and is also offered in a “half-rack” option.
Note - Not all base cabinet configurations support expansion cabinets.
The expansion cabinet installation follows a balanced-chain installation where the chain on the bottom of the cabinet takes the first disk shelf pair, and the second chain on the top half takes the second pair. The alternating manner of a balanced chain installation distributes SSDs and follows the load-priority methodology.
The number of expansion cabinets supported is dependent on the number of chains remaining in the ZS5-4 Racked System base cabinet. Each ZS5-4 Racked System expansion cabinet requires two chains to support a full expansion cabinet. Also, a total of four SAS-3 HBA ports (two HBA ports for each chain) are required for each expansion cabinet.
The following diagrams illustrate the cabling of ZS5-4 Racked System expansion cabinet configurations. The legend for each diagram is as follows:
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A hollow circle indicates the cable connection to the top IOM (IOM 1).
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A solid circle indicates the cable connection to the bottom IOM (IOM 0).
Note - The base cabinet can contain all DE3-24P or DE3-24P All-Flash disk shelves, or a mix of DE3-24C and DE3-24P disk shelves, as described in Base Cabinet Configurations for ZS5-4 Racked System Performance Configurations.
Figure 620 ZS5-4 Racked System Performance Configuration: One Expansion Cabinet with Two DE3-24C Disk Shelves
Figure 621 ZS5-4 Racked System Performance Configuration: One Expansion Cabinet with Four DE3-24C Disk Shelves
Figure 622 ZS5-4 Racked System Performance Configuration: One Expansion Cabinet with Five DE3-24C Disk Shelves (Half Rack)
Figure 623 ZS5-4 Racked System Performance Configuration: One Expansion Cabinet with Six DE3-24C Disk Shelves
Figure 624 ZS5-4 Racked System Performance Configuration: One Expansion Cabinet with Eight DE3-24C Disk Shelves
Figure 625 ZS5-4 Racked System Performance Configuration: One Expansion Cabinet with 10 DE3-24C Disk Shelves
Figure 626 ZS5-4 Racked System Performance Configuration: Two Expansion Cabinets with 20 DE3-24C Disk Shelves
Figure 627 ZS5-4 Racked System Performance Configuration: Three Expansion Cabinets with 30 DE3-24C Disk Shelves
