@scottalanmiller said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
It seems, you are suggesting here like below scenario?
have a server which takes more hard drives, let it be lower end server
install hardware raid controller
insert as many hard drives the raid controller or server supports
install linux on top (prefably) CentOS, and run SMB Shares
If yes, I have similar plans with Dell PE T310 older server I have.
Hardware RAID is an option. But MD RAID is free and comes with Linux and it was fine for you to use when you had the lower grade QNAP, so should be even better now. So while hardware RAID is great, it's also not free. MD RAID is free and 100% acceptable.
As someone said above, not as many drives as you can, there is a "right number of drives" and that might be two, four, six, or maybe more than the box will support. But don't just assume that more is better, there are some big benefits to RAID 1 with just two drives if they are big enough and fast enough for you.
But yes, in general, this is the advised path. A NAS is nothing more than this, but typically with a nearly pointless web interface added on and cheaper consumer hardware underneath. A NAS only means it's a "limited server", nothing more. A QNAP is considered a consumer level device, so several steps below an entry level general purpose server. And file serving is the most common function of a server traditionally.
NOthing wrong with a NAS but it offers nothing special. It's not safer, faster, or more featureful than a traditional server. It's actually less safe, same speed or slower, and definitely far fewer features than a normal server.
In this case, MD RAID is software raid, does that means, I will allocate one hard drive for OS (which linux by the way?), and connect 2 or 4 additional hard drives other than Hard Drive for OS.
Then implement RAID on additional hard drives with MD RAID?
I already have RAID Controller in this PE T310, Perc 6i/r, which supports only RAID 1 with 2TB max Virtual Disk, which is almost no use space for me.