[SOLVED] Using SSD SLC storage with RAID 10?

[jlandi]

Hello all,

I am building a computer that has to exist within a car. Because of this, I was planning on using SSD SLC storage in a hardware level RAID 10 configuration. The computer I am building is expected to last somewhere around ten years with minimal adjustment to it.

I am concern with the constant read/write that the RAID 10 will be doing that I will prematurely wear out the SSD SLC storage.

I was wondering what everyone's opinions are around this and if there are any better recommendations. Thank you!

 

[popatim]

SLC endurance is typically 10x that of MLC - Around 100,000 program/erase cycles. (MLC being in the 10k range) Considering that you could overwrite the entire array everyday for 270 yrs before hitting the 100k mark (100k/365) I don't think you have much to worry about and long as you aren't doing that more then once a day.
The other electronics will probably fail first...

 

[USAFRet]

Why the RAID 10?
I can't visualize any performance need from the 0 part. Maybe hardware redundancy from the 1, but thats about it.

More details, please?

 

[jlandi]

Why the RAID 10?
I can't visualize any performance need from the 0 part. Maybe hardware redundancy from the 1, but thats about it.

More details, please?

I am doing RAID 10 for the redundancy and increased disk space. So allowing me to double the current cheapest largest ssd and then making that redundant.

Since it has to be in operation for about 10 years I wanted to have a fail guard, which is the simplest reason I did it.

 

[popatim]

Raid 10 always gives you a 1 drive failure allowance with a chance at surviving 2 failed disks.
You might consider a 3 drive raid1 array and guarantee your ability to survive a 2 drive failure.
-Just a thought-