Hardware Overviews
Controller Max.
Shelves
Max. 2x4
port SAS-2
HBA
Max. 4x4
port SAS-2
HBA
Guidelines
six HDD-only or SSD-capable disk shelves, combined in
any order.
7320 6 1 1 The 7320 single and cluster controller configurations
allow a single chain of one to six disk shelves. Any
combination of disk-only and Logzilla-capable shelves
may be combined within the chain in any order. The
cabling configurations are unchanged. Half-populated shelf
configurations are not supported.
7120 2 1 N/A The 7120 standalone configurations allow a single chain of
1 or 2 disk shelves. Write-optimized (Logzilla) SSDs are
not supported in the expansion storage for the 7120. The
disk shelves must be fully populated with 24 HDDs. Half-
populated shelf configurations are not supported.
Hardware Overviews
For hardware overviews, see:
■
“Overview of Disk Shelves” on page 17
■
“Overview of ZS4-4 Controller” on page 30
■
“Overview of ZS3-4 Controller” on page 34
■
“Overview of ZS3-2 Controller” on page 38
■
“Overview of 7420 Controller” on page 44
■
“Overview of 7320 Controller” on page 49
■
“Overview of 7120 Controller” on page 52
Overview of Disk Shelves
Oracle disk shelves are high-availability serial attached SCSI (SAS) devices that provide
expanded storage. The main components are hot-swappable, including drives, I/O Modules
(IOMs) or SAS Interface Module (SIM) boards for connecting to controllers and other disk
shelves, and dual load-sharing power supply with fan modules. This provides a fault-tolerant
environment with no single point of failure. Component status is indicated with lights on the
disk shelf, and in the Maintenance > Hardware screen of the BUI.
Refer to “Replacing the Disk Shelf Hardware” in Oracle ZFS Storage Appliance Customer
Service Manual for procedural information about replacing disk shelf components.
Installation Prerequisites and Hardware Overviews 17
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