Dell R 420 Manual

Eight hard-drive 
systemsUp to eight 2.5 inch, hot-swappable SAS, SATA, SAS SSD, SATA SSD, or Nearline SAS hard  drives
NOTE: SSD/SAS/SATA hard drives cannot be mixed in a system.
The hot-swappable hard drives connect to the system board through the hard-drive backplane. Hot-swappable hard drives are supplied in hot-swappable hard-drive carriers that fit in the hard-drive slots.
CAUTION: Before attempting to remove or install a hot-swappable hard drive while the system is running, see the 
documentation...

Removing A 3.5 Inch Hard-Drive Blank
CAUTION: To maintain proper system cooling, all empty hard-drive slots must have drive blanks installed.
1.If installed, remove the front bezel.
2.Grasp the front of the hard-drive blank, press the release button and slide the blank out until it is free of the hard-
drive slot.
Figure 19. Removing and Installing a 3.5 Inch Hard-Drive Blank
1.hard-drive blank
2.release button
Installing A 3.5 Inch Hard-Drive Blank
1.If installed, remove the front bezel.
2.Insert the...

Figure 20. Removing and Installing a Hot-Swap Hard Drive
1.release button
2.hard drive
3.hard-drive carrier handle
Installing A Hot-Swap Hard Drive
CAUTION: Many repairs may only be done by a certified service technician. You should only perform 
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or 
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your 
warranty. Read and follow the...

Removing A Cabled Hard Drive
CAUTION: Many repairs may only be done by a certified service technician. You should only perform 
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or 
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your 
warranty. Read and follow the safety instructions that came with the product.
1.If installed, remove the front bezel.
2.Turn off the system and attached...

Installing A Cabled Hard Drive
CAUTION: Many repairs may only be done by a certified service technician. You should only perform 
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or 
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your 
warranty. Read and follow the safety instructions that came with the product.
1.If installed, remove the front bezel.
2.Turn off the system and...

Figure 22. Removing and Installing a 2.5 Inch Hard Drive Into a 3.5 Inch Hard-Drive Adapter
1.screws (2)
2.3.5 inch hard-drive adapter
3.2.5 inch hard drive
Installing A 2.5 Inch Hard Drive Into A 3.5 Inch Hard-Drive Adapter
CAUTION: Many repairs may only be done by a certified service technician. You should only perform 
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or 
telephone service and support team. Damage due to servicing that is not...

Figure 23. Removing and Installing a Hot-Swap Hard Drive Into a Hard-Drive Carrier
1.hard-drive carrier
2.screws (4)
3.hard drive
4.screw holes (4)
57 

Figure 24. Removing and Installing a Hard-Drive Adapter With a 2.5 Inch Hot-Swap Hard Drive Into a 3.5 Inch Hard-Drive Carrier
1.hard-drive carrier
2.screws (5)
3.3.5 inch hard-drive adapter
4.2.5 inch hard drive
58 

Figure 25. Removing and Installing a Cabled Hard Drive Into a Hard-Drive Carrier
1.screws (4)
2.hard drive
3.screw holes (4)
4.hard-drive carrier
Installing A Hard Drive Or A Hard-Drive Adapter Into A Hard-Drive Carrier
CAUTION: Many repairs may only be done by a certified service technician. You should only perform 
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or 
telephone service and support team. Damage due to servicing that is not...

Optical Drive (Optional)
Removing The Optical Drive In Hot-Swappable Hard-Drive Systems
CAUTION: Many repairs may only be done by a certified service technician. You should only perform 
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or 
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your 
warranty. Read and follow the safety instructions that came with the product.
1.If installed,...