Working on HP P410 / Desktop Motherboard / D2700 Enclosure.

[GreeneTechPC]

Took a bit of effort but work wonderfully now. Thank you for sharing your efforts.
Motherboard: HP Angelica2
Controller: HP P410
Enclosure: HP D2700 (x2)
OS: Ubuntu Server 20.04 as well as TrueNAS SCALE both working

Other Details:
Smart Array P410 in Slot 1
Bus Interface: PCI
Slot: 1
Serial Number: PACCRCN80ZG1TQA
Cache Serial Number: PBCDF0CRH0C1Y5
RAID 6 (ADG) Status: Disabled
Controller Status: OK
Hardware Revision: C
Firmware Version: 6.64
Wait for Cache Room: Disabled
Surface Analysis Inconsistency Notification: Disabled
Post Prompt Timeout: 0 secs
Cache Board Present: True
Cache Status: Not Configured
Drive Write Cache: Disabled
Total Cache Size: 1024 MB
Total Cache Memory Available: 912 MB
No-Battery Write Cache: Disabled
Cache Backup Power Source: Capacitors
Battery/Capacitor Count: 1
Battery/Capacitor Status: OK
SATA NCQ Supported: True

Expander 250
Device Number: 250
Firmware Version: 0144
WWID: 5001438001A68FBF
Port: 2I
Box: 1
Vendor ID: HP

Enclosure SEP (Vendor ID HP, Model D2700 SAS AJ840A) 248
Device Number: 248
Firmware Version: 0144
WWID: 5001438001A68FBE
Port: 2I
Box: 1
Vendor ID: HP
Model: D2700 SAS AJ840A

SEP (Vendor ID PMCSIERA, Model SRC 8x6G) 249
Device Number: 249
Firmware Version: RevC
WWID: 50014380092FF5AF
Vendor ID: PMCSIERA
Model: SRC 8x6G