HP Proliant DL380 Gen9 Smart Array P440ar 8 SFF + 2 SFF Unversal Bay kit

[rajatarazi]

I was deploying server HP DL380 Gen9.

I configured  6-SSF 10K 1.8TB as RAID 6 and 2-SSF 15K 300 GB as RAID 1 .
I installed the OS ( Windows 2012 R2 ) on the 300 GB SAS disk , but after I opened my PC to figure out the configured drivers I realaized that the logical driver D is not listed ; so its like I lost 7.2 TB which had been configured as RAID-6.

my question what should I do to get access for the Logical Drive [ D: ] which is configured as RAID-6

I'm really thankful for any advice or help

Best wishes 

[parnassus]

Have you cross-checked Disk Utility under OS's Administrative Tools?

Wouldn't possible that no D disk unit appears on your OS file manager simply because that RAID 6 volume wasn't partitioned and formatted during - or just after - the OS install phase (as instead necessarily happened on the other RAID1 volume used for OS install...the one that became the logical bootable C disk unit, NTFS formatted)?