Overview of Disk Shelves
Controller Max.
Shelves
Max.
2x4 Port
SAS-2
HBA
Max.
4x4 Port
SAS-2
HBA
Max.
4x4 Port
SAS-3
HBA
Guidelines
capability. Total number of chains is six with 2X4 port
SAS-2 HBAs, and 12 with 4X4 port SAS-2 HBAs. Any
combination of disk-only and write-optimized shelves
can be combined within the chain in any order. You can
also connect mixed disk shelf types (DE2 and legacy Sun
Disk Shelves) to the same controllers, but each chain
must contain only the same disk shelf type. Directly
connecting different disk shelf types is not supported.
7320 6 1 1 NA Any combination of disk-only and write-optimized
shelves may be combined within the chain in any order.
The cabling configurations are unchanged. You can also
connect mixed disk shelf types (DE2 and legacy Sun
Disk Shelves) to the same controllers, but each chain
must contain only the same disk shelf type. Directly
connecting different disk shelf types is not supported.
7120 2 1 NA NA Write-optimized SSDs are not supported in the expansion
storage for the 7120. The disk shelves must be fully
populated with 24 HDDs. You can also connect mixed
disk shelf types (DE2 and legacy Sun Disk Shelves) to
the same controllers.
Overview of Disk Shelves
This section provides an overview of the Oracle ZFS Storage Appliance disk shelves. For
installation instructions, refer to “Installing Disk Shelves” on page 73. For service
instructions, refer to “Servicing the Disk Shelves” in Oracle ZFS Storage Appliance Customer
Service Manual. For information on disk compatibility, refer to Oracle Systems Handbook.
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.
To understand disk shelf components and configurations, see the following topics.
■
“Oracle Storage Drive Enclosure DE3-24” on page 20
■
“Oracle Storage Drive Enclosure DE2-24” on page 27
■
“Sun Disk Shelf” on page 33
■
“Disk Shelf Components” on page 37
Installation Prerequisites and Hardware Overviews 19
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