OK--- My recommendation is to add the cache drives as cache drives. Then add all of the Data and Parity Drives as DATA drives! Then start the array. Two (and ONLY two) of the drives will be unformatted and not mounted as DATA drives. These are your parity drives. If there are more or fewer than two drives in this condition, STOP! and ask for more help!!!!
If there are exactly two drives unformatted, stop the array and assign one drive as parity 1 and the other drive as Parity 2. Start the array and a parity rebuilt will start. It should finish without a problem and you will have a protected array again.
(The reason, you don't want to assign a drive as parity to begin with is that as soon as the array starts, a parity rebuilt will begin and if that drive happens to be a data drive, you will lose all of the data instantly!)
EDIT: (Order of the parity drives are unimportant as parity will have to be rebuilt in any case. This is specfically true with Parity 2 as its calculations are based on data location in the data matrix.)
On 2/6/2019 at 8:44 PM, trurl said:
If you are absolutely sure you know which drives are parity then you can avoid rebuilding as I mentioned, but the order of parity IS important if you aren't going to rebuild.
I have this problem right now.
My question is: I know what 2 drive are parity, but NOT in what order the data drives where before. is this important? (The data drive mount order)
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I have this problem right now.
My question is: I know what 2 drive are parity, but NOT in what order the data drives where before. is this important? (The data drive mount order)