Please rate this setup

[Schaeffer]

Hi,
I decided to change my NAS setup to something brand new, I made very wrong choices hardware wise with the previous setup: so now I'm here to seek advise BEFORE purchasing anything.
Now that is what I'm planning:
2 Raid-Z2 pools with 12 4TB hard drives each: 12 drive for Raid-Z2 is what seems to be the most optimised
Now hardware-wise:
-Supermicro SC846BE16-R920B: 24 bay 4U chassis with 920W platinum redundant PSU
http://www.supermicro.nl/products/chassis/4u/846/sc846be16-r920.cfm
-Supermicro X10SLL-S
http://www.supermicro.nl/products/motherboard/xeon/c220/x10sll-s.cfm
-Intel Xeon E3-1220v3 3.1Ghz
-2x 8Gb ECC unbuffered 1600Mhz Supermicro certified
Now for HBA controller:
-IBM ServeRaid M1015 crossflashed to IT mode
-Intel SAS Expander RES2V240 to reach 24 SATA ports
For the drives I will start with 12 drives then populate to 24 later
-Seagate Red/NAS drives, 4TB

What are you thinking about my setup? Thank you very much!

 

[anodos]

Hardware looks great. Depending on situation, you may need mord ram. How will the server be used? It may be a better idea to do three 8 disk RAIDZ2 vdevs

 

[Schaeffer]

Thanks.
As I said earlier, for the time being I plan to only populate 12 drives. I had in mind to populate more RAM slots when I will populate more drives to reach 32Gb for 96Tb raw storage.
The server won't be used 24/24, I prefer data integrity to availability: the purpose of the setup is to be something like a "personal data time capsule", to store all the data I own to one place and access it when I need to. You would think it is a bit overkill but I already filled 28Tb of data with previous setup.

My principal concern is about the HBA choice: on my previous setup I made terrible choice and don't want to do it again

 

[Ericloewe]

Thanks.
As I said earlier, for the time being I plan to only populate 12 drives. I had in mind to populate more RAM slots when I will populate more drives to reach 32Gb for 96Tb raw storage.
The server won't be used 24/24, I prefer data integrity to availability: the purpose of the setup is to be something like a "personal data time capsule", to store all the data I own to one place and access it when I need to. You would think it is a bit overkill but I already filled 28Tb of data with previous setup.

My principal concern is about the HBA choice: on my previous setup I made terrible choice and don't want to do it again

You can't populate any more RAM slots because that motherboard doesn't have any!
You'd need an X10SLL-F, which has four slots, or another, higher end motherboard.

 

[cyberjock]

12 disks in a RAIDZ2 is too wide. You're going to potentially have performance problems. I'd do 8 disk RAIDZ2s.