1. Oracle ZFS Storage Appliance Customer Service Manual, Release OS8.8.x
  2. Servicing the Disk Shelves
  3. Disk Shelf Hardware Overview
  4. Oracle Storage Drive Enclosure DE3-12C

Oracle Storage Drive Enclosure DE3-12C

This section introduces the front and rear panel components of the Oracle Storage Drive Enclosure DE3-12C disk shelf.

Oracle Storage Drive Enclosure DE3-12C is a 2U chassis that supports 12 3.5'' SAS-3 drives. The high-performance HDDs provide reliable storage, and the SSDs provide accelerated write operations. This disk shelf features dual, redundant I/O Modules (IOMs), and dual power supply with fan modules.

Oracle Storage Drive Enclosure DE3-12C Drive Locations (Front View)


Graphic showing the Oracle Storage Drive Enclosure DE3-12C drive numbers

Up to two write-optimized log SSDs are supported per disk shelf. Log devices can be populated in slots 10 and 11.

External Read Cache Devices - Read cache devices, installed in Oracle Storage Drive Enclosure DE3-12C disk shelves, are external to the controller and referred to as external second level adaptive replacement cache (EL2ARC). When a cluster takeover occurs, read cache remains persistent and sharable between controllers, enabling read performance to be sustained. For slot configuration details and minimum software requirements, see Disk Shelf Configurations.

Oracle Storage Drive Enclosure DE3-12C Status Indicators (Front View)


Graphic showing the drive enclosure and drive LEDs

1 Power indicator

2 Chassis service required indicator

3 Locate indicator

4 Power/Activity indicator

5 Drive service required indicator

6 Serial number tag

7 Locking mechanism - Not used

Oracle Storage Drive Enclosure DE3-12C Rear Panel


Graphic showing the Oracle Storage Drive Enclosure DE3-12C rear panel

1 Power supply with fan module 0

2 I/O Module A

3 I/O Module B

4 Power supply with fan module 1

Oracle Storage Drive Enclosure DE3-12C I/O Module Indicators


Graphic showing input output module indicators

1 Identity indicator: Module is being identified if blinking

2 I/O Module service required indicator

3 Power/Activity indicator

4 For Oracle service only

5 SAS-3 port fault indicator

6 SAS-3 port activity indicator

7 SAS-3 Port A

8 SAS-3 Port B - Not used

9 SAS-3 Port C

10 Not used

Oracle Storage Drive Enclosure DE3-12C Power Supply Indicators


Graphic showing the power supply indicators at the back of the drive enclosure

1 DC power fail indicator

2 Fan fail indicator

3 AC power fail indicator

4 Power supply status indicator

5 Power on/off switch

6 Universal power input connector

7 Power cord tie wrap