harshavardhana/ec.md

## ec.md

      
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              ec.md
            
          
    Erasure code sizing guide

Toy Setup

Capacity constrainted environments, works but not recommended for production.


servers
drives
stripe_size
parity


1
1
1
0


1
4
4
2


4
1
4
2


5
1
5
2


6
1
6
3


7
1
7
3


Minimum System Configuration


servers
drives
stripe_size
parity


4
2
8
4


5
2
10
4


6
2
12
4


7
2
14
4


8
1
8
4


8
1
16
4


9
1
9
4


10
1
10
4


11
1
11
4


12
1
12
4


13
1
13
4


14
1
14
4


15
1
15
4


16
1
16
4
servers	drives	stripe_size	parity
4	2	8	4
5	2	10	4
6	2	12	4
7	2	14	4
8	1	8	4
8	1	16	4
9	1	9	4
10	1	10	4
11	1	11	4
12	1	12	4
13	1	13	4
14	1	14	4
15	1	15	4
16	1	16	4