Buffalo NAS Raid 10

kira70591

Honorable
Feb 2, 2014
580
0
11,360
Hi guys,

First time having to ask a question instead of answering one, woohoo! I am used to dealing with FreeNAS type systems (z1, z2, etc) where I have not used a dedicated traditional RAID #.

I recently was able to get a Buffalo (yeah yeah, I just want it to throw files on) Terastation Model TS-8VH24TL/R6. It is an eight bay NAS with 3 TB drives filling all slots. I am attempting to set it up with RAID 10 and am having some issues, perhaps I am not thinking about RAID 10 in the correct way. RAID 10 should effectively half the amount of usable space after it is set up, correct? When I set it up with only 4 disks in an array, the space is halved like normal; however, when I try to set up the array with all 8 disks it is dividing my usable space by 4 instead of half. I should be getting 12 TB usable as opposed to 6, correct? Am I not understanding the math or does something not sound right?

Thanks for any help you peeps may be able to lend.
 
Solution
It may be allocating the drives as spares. If you can gain ssh access show us the output of: cat /proc/mdstat

That will show the status of your RAID meta device.

kira70591

Honorable
Feb 2, 2014
580
0
11,360
Yep, I take full backups of everything. For what it is, it is fine (going to use it for my family NAS for them to put whatever they want on there and stay off of my NAS). Could not say no to a free 24tb that will just sit on a shelf in my rack. Hmmm, I might need to reach out to Buffalo then and ask them what they think. We will see how that goes... Buffalo support is almost no existent with documentation and support, sigh. Oh well, the crap we do to get free stuff working.