Base Cabinet Configurations for Oracle ZFS Storage Appliance Racked System ZS7-2 HE with All-Flash/Mixed Configurations
Oracle ZFS Storage Appliance Racked System ZS7-2 HE maximum performance configurations have four SAS-3 HBAs in each controller, which provide the maximum of 16 ports of SAS-3 HBA connectivity.
The SAS-3 HBA port numbering order is ascending, from bottom (Port 0) to top (Port 3). Both SAS-3 HBA cards and DE3-24 disk shelves use the SFF 8644 connectors.
The following figure shows the slot number for each HBA card, as well as the port numbers in each card.
![This image shows the Oracle ZFS Storage ZS7-2 HE back panel with HBA port numbers. This image shows the Oracle ZFS Storage ZS7-2 HE back panel with HBA port numbers.](img/g7073-zs7-2-he_rear_panel-hbas.jpg)
As shown in the following figure, the Oracle Storage Drive Enclosure DE3-24P disk shelf has two I/O modules (IOMs) with four ports each. In all cabling configurations, Port 1 and Port 3 are never used.
![This image shows the Oracle Storage Drive Enclosure DE3-24P back panel with HBA connections. This image shows the Oracle Storage Drive Enclosure DE3-24P back panel with HBA connections.](img/de3_24p-rear-150dpi.jpg)
As shown in the following figure, the Oracle Storage Drive Enclosure DE3-24C disk shelf has two I/O modules (IOMs) with four ports each. In all cabling configurations, Port 1 and Port 3 are never used.
![This image shows the Oracle Storage Drive Enclosure DE3-24C back panel with HBA connections. This image shows the Oracle Storage Drive Enclosure DE3-24C back panel with HBA connections.](img/de3_port.png)
The Oracle ZFS Storage Appliance Racked System ZS7-2 HE all-flash/mixed configurations follow standard cabling methodologies with additional restrictions that allow use of the cable management arm (CMA). They provide a more practical implementation for SSD log device and read cache device matching, limited multi-cabinet expansion, and can be configured for maximum or optimal performance.
Any upgrades that change the number of SAS-3 HBA cards, or include more than one cabinet that is not an original Oracle ZFS Storage Appliance Racked System ZS7-2 HE or not compatible with Oracle ZFS Storage Appliance Racked System ZS7-2 HE must be re-cabled for that particular configuration. For cabling examples of connecting Oracle Storage Drive Enclosure DE3-24 disk shelves to an Oracle ZFS Storage ZS7-2 HE controller with 4x4 port SAS-3 HBAs, see Cabling Oracle Storage Drive Enclosure DE3-24 Disk Shelves to Oracle ZFS Storage ZS7-2 High-end (HE) Controllers. For SAS cable length guidelines, see Cabinet and Cabling Guidelines.
The cabinets are self-contained and pre-cabled following the required cabling methodology. The following diagrams illustrate how the six base cabinet options are cabled.
One to Eight Oracle Storage Drive Enclosure DE3-24P Disk Shelves (maximum performance)
![This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE Performance Configuration with 1 to 8 Oracle Storage Drive Enclosure DE3-24P disk shelves in eight chains. This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE Performance Configuration with 1 to 8 Oracle Storage Drive Enclosure DE3-24P disk shelves in eight chains.](img/zs5-4_8_rs.png)
Two to 18 Oracle Storage Drive Enclosure DE3-24P Disk Shelves (optimum performance)
![This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE Performance Configuration with 2 to 18 Oracle Storage Drive Enclosure DE3-24P disk shelves in eight chains. This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE Performance Configuration with 2 to 18 Oracle Storage Drive Enclosure DE3-24P disk shelves in eight chains.](img/7-2hers_2-18.png)
Two Oracle Storage Drive Enclosure DE3-24C (bottom left) and
Two to 14 Oracle Storage Drive Enclosure DE3-24P Disk Shelves (optimum performance)
![This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE with 2 Oracle Storage Drive Enclosure DE3-24C, and 2 to 14 Oracle Storage Drive Enclosure DE3-24P disk shelves in seven chains. This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE with 2 Oracle Storage Drive Enclosure DE3-24C, and 2 to 14 Oracle Storage Drive Enclosure DE3-24P disk shelves in seven chains.](img/7-2hers_2-2-14.png)
Four Oracle Storage Drive Enclosure DE3-24C (bottom left) and
Two to Ten Oracle Storage Drive Enclosure DE3-24P Disk Shelves (optimum performance)
![This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE with 4 Oracle Storage Drive Enclosure DE3-24C, and 2 to 10 Oracle Storage Drive Enclosure DE3-24P disk shelves in five chains. This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE with 4 Oracle Storage Drive Enclosure DE3-24C, and 2 to 10 Oracle Storage Drive Enclosure DE3-24P disk shelves in five chains.](img/7-2hers_4-2-10.png)
Six Oracle Storage Drive Enclosure DE3-24C (first two chains from the left) and
Two to Six Oracle Storage Drive Enclosure DE3-24P Disk Shelves (optimum performance)
![This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE with 6 Oracle Storage Drive Enclosure DE3-24C, and 2 to 6 Oracle Storage Drive Enclosure DE3-24P disk shelves in four chains. This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE with 6 Oracle Storage Drive Enclosure DE3-24C, and 2 to 6 Oracle Storage Drive Enclosure DE3-24P disk shelves in four chains.](img/7-2hers_6-2-6.png)
In the following figure, the Oracle Storage Drive Enclosure DE3-24C units are the bottom eight disk shelves.
Eight Oracle Storage Drive Enclosure DE3-24C (bottom disk shelves) and
Two Oracle Storage Drive Enclosure DE3-24P Disk Shelves (optimum performance)
![This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE with 8 Oracle Storage Drive Enclosure DE3-24C, and 2 Oracle Storage Drive Enclosure DE3-24P disk shelves in five chains. This image shows Oracle ZFS Storage Appliance Racked System ZS7-2 HE with 8 Oracle Storage Drive Enclosure DE3-24C, and 2 Oracle Storage Drive Enclosure DE3-24P disk shelves in five chains.](img/7-2hers_8-2.png)