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
•
Oracle Storage Drive Enclosure DE2-24
•
•
Oracle Storage Drive Enclosure DE3-24
This section introduces the front and rear panel components of the Oracle Storage
Drive Enclosure DE3-24P and DE3-24C disk shelves.
Oracle Storage Drive Enclosure DE3-24P Disk Shelf
Oracle Storage Drive Enclosure DE3-24P is a 2U chassis that supports 24 2.5'' SAS-3
drives. The high-performance HDDs provide reliable storage. The SSDs provide
accelerated write operations, and for some controllers, read-optimized cache
operations. This disk shelf features dual, redundant I/O Modules (IOMs), and dual
power supply with fan modules.
Oracle Storage Drive Enclosure DE3-24P Drive Locations (Front View)
Up to four write-optimized log SSDs are supported per disk shelf. Log devices should
be populated in order of slots 20, 21, 22, and 23.
Read-optimized cache SSDs can also be installed in the Oracle Storage Drive
Enclosure DE3-24P disk shelf, for some controllers. For slot configuration details and
minimum software requirements, see
in Oracle ZFS Storage
Appliance Customer Service Manual, Release OS8.8.x.
Oracle Storage Drive Enclosure DE3-24P Status Indicators (Front View)
Chapter 2
Overview of Disk Shelves
2-16
