i just saw that storage tier 1 is filled up 99% here is the screen shot for the your understanding.

i also saw the Storage tier configuration there is clearly show some free space ? storage 2nd and 3rd tier also have lots of free space you can see in this image..

tier 1 raid 5-5 is almost filled up whereas the raid 10 having enough space can anyone elaborate what is the mechanism of two raid in tier-1 i assume the raid 10 is for write and raid 5-5 for read?

correct me if i am wrong and also suggest the best possible way to running out of this current stat thanks.