Advice on a NAS

[JoNBoY]

Right this is what i am thinking now let me know if i am going mad but this is my current setup; 

 

HP Proliant N54L

• Processor: Dual Core AMD Turion™ II Neo N54L (2.2GHz) - AMD RS785E/SB820M chipset
• Memory: 4GB 10600E DDR3 ECC - Two (2) DIMM slots o 4GB (1x4GB) PC3-10600E DDR3 Unbuffered (UDIMM) ECC memory, operating at max. 800MHz
• Storage: 4 x 6tb WD Red ( JBOD )
• Storage Controller: Embedded AMD SATA controller with RAID 0, 1 - Embedded AMD eSATA controller for connecting external storage devices via the eSATA connector in the rear of the server.
• Interfaces;

Graphics On board VGA ( 128MB shared supporting 1920x1200 @ 60Hz )

USB 2.0 Ports 7 total (2 rear, 4 front panel, 1 internal)

1x Network RJ-45 (Ethernet) 1 (10/100/1000 bits/s)

1x eSATA Gen 2

• Network Controller: Embedded NC107i PCI Express Gigabit Ethernet Server Adapter. 
• Expansion Slots: Slot 1: PCI-Express Gen 2 x16 connector with x16 link  
• Slot 2: PCI-Express Gen 2 x1 connector with x1 Link o
• Slot 2-2: PCI-Express x4 slot for optional management card USB 2.0 Ports: o Seven (7) USB 2.0 ports: 4 front , 2 rear, 1 internal (for tape)
• Power Supply: 150 Watts Non-Hot Plug, Non Redundant Power Supply
• Operating System: Xpenology - but supports Windows and Red Hat Linux
• Form Factor: Ultra Micro tower

this is what i am thinking,

• Processor: Dual CPU - Intel Xeon x5650 2.66ghz
• Memory: 24gb PC3-10600R DDR3 1333MHz ECC (6x4GB) - 12 x DIMM Slots DDR3 RAM
• Storage: 8 x 6tb WD Red ( Raid 5 )
• Storage Controller: Smart Array P410i Integrated RAID Controller with 512MB battery backed cache
• Interfaces:

• Network Controller: Two HP NC382i Dual Port Multifunction 1Gbps Server Adapters (4 x Ports)
• Expansion Slots: 
• Power Supply: Dual Redundant Power Supplies (2xPSU)
• Operating System: Unsure atm Windows server I think advice would be great
• Form Factor: HP ProLiant DL380 G7 Server Chassis ( 8 Bay ) no sold on this but would like 8 bays

I want it to be a NAS run a Plex server, 1080p 2x streams with maybe an option for 4k in the future, what you guys think I also have this idea of playing around with VM's thanks for the help

[SCHISCHKA]

have you trialled rebuilding a raid5? the recommendation is dont do raid5 above 2TB drives and i agree with this.

[JoNBoY]

Nope I haven't, I currently run JBOD and have done for a while i just feel like some redundancy wouldn't go a miss but nothing on my server will be un-replaceable 

[JoNBoY]

how about HP ProLiant DL380?

 

EDIT: never mind only has 2.5inch drive bays