Optical Drive; Tape Drive; Table 14. Supported External Storage - Dell PowerEdge T420 Technical Manual

Controller Description
3Gb/s SATA software RAID
PERC S110
controller that supports up
Software
to 4 physical disks or 8
RAID
virtual disks

Optical drive

The T420 hot-plug chassis supports up to three media bays through one of the following options:

Up to two SATA half-height DVD-ROM or DVD R/W drive + one SAS interface tape drive

Up to one SATA half-height DVD-ROM or DVD R/W drive + one internal RD1000 drive + one SAS
interface tape drive
The T420 cabled chassis supports up to two media bays through one of the following options:

Up to two SATA half-height DVD-ROM or DVD R/W drive

Up to one SATA half-height DVD-ROM or DVD R/W drive + one internal RD1000 drive/or SAS
interface tape drive

Up to one internal RD1000 drive + one SAS interface tape drive

Tape drive

The T420 supports the external storage device types listed in Table 14. For additional information,
visit Dell.com/Storage.
Tape devices
LTO5-140 SAS
LTO4-120 HH SAS
LTO3-080 SAS
RD1000 SATA
External SAS tape
External FC tape
External RD1000
25 PowerEdge T420 Technical Guide
Features
Supports up to 4
hot-plug SATA drives ,
no expansion, Microsoft
Windows only
Table 14. Supported external storage
Interface cards
Internal tape adapter
Internal tape adapter
Internal tape adapter
Onboard SATA
6Gb SAS HBA
FC HBA
USB
RAID Form factor
modes
supported
System
board-
0, 1, 5, 10
embedded
SATA
Usage
model
Entry-level