
Prepare for assembly replacement 5
Hardware replacement overview.................................................................. 6
Memory optimized (independent channel) mode..........................................6
Product serial number tag............................................................................ 6
Shut down the IDPA..................................................................................... 7
Troubleshooting shutdown of the DP4400................................................... 8
Remove and replace assemblies 9
Safety instructions......................................................................................10
Using the ACM Health dashboard to monitor the DP4400.......................... 10
Remove and replace power supply...............................................................11
Power supply units..........................................................................11
Power supply status indicators....................................................... 11
Remove and replace a power supply...............................................14
Hard drive replacement overview................................................................ 17
Hard drives..................................................................................... 17
Identify a faulted hard drive............................................................17
Identifying a failed disk from the ACM ..........................................20
Remove front and rear hard drives............................................................. 20
Hard drive access.......................................................................... 20
Remove the front bezel to access front panel hard drives..............21
Remove the hard drive................................................................... 21
Install the hard drives.................................................................... 22
Install the front bezel.....................................................................23
Verifying successful disk replacement from the ACM ................... 24
Remove internal hard drives....................................................................... 25
Extend the system from the cabinet..............................................25
Remove the system cover............................................................. 25
Remove hard drive carrier from the mid hard drive tray.................26
Replace a hard drive in the mid hard drive tray.............................. 27
Install the system cover.................................................................29
Slide the system into the cabinet...................................................30
Verifying successful disk replacement from the ACM ...................30
Remove fans............................................................................................... 31
Cooling fans................................................................................... 31
Identifying a failed fan from the ACM ............................................31
Extend the system from the cabinet..............................................32
Remove the system cover............................................................. 32
Remove the cooling fan................................................................. 33
Install the cooling fan.....................................................................34
Verifying successful fan replacement from the ACM .................... 34
Install the system cover................................................................. 34
Slide the system into the cabinet...................................................35
DIMM remove and replace..........................................................................36
Identify a failed DIMM using the LED indicators............................ 36
Identifying a failed DIMM from the ACM ...................................... 36
Disconnect the power cords and I/O cables.................................. 38
Extend the system from the cabinet..............................................38
Remove the system cover............................................................. 38
Remove mid hard drive tray...........................................................39
Chapter 1
Chapter 2
CONTENTS
Dell EMC Integrated Data Protection Appliance DP4400 2.4 Service Procedures Guide 3