EF570 performance degarde when ssd fail

stevenzhang

Hi expert
We found EF570 performance reduce 50% when one ssd fail.
Is it normal?
Our enviorment is 120 ssd, ssd size 3.2T, DDP pool, each pool 60 disk, io size 32k, read/write percent 7:3.

christsai

Hi @stevenzhang 

you can reference this figure for performance degrade.

And you can try to modify the reconstruction priority to reduce the performance degrade during DDP rebuild.

https://www.netapp.com/us/media/tr-4652.pdf