V3 storage coffer disk

In the v3 5500T coffer disk with integrated disk control, 23G of space is divided from 0 to 3 hard disks to form RAID10

1- Is 0 and 1 make up RAID1 2 and 3 make up RAID1 2 RIAD1 make up RAID0 Is this made up?

If the No. 0 hard disk and the No. 2 hard disk fail at the same time, will the RAID group work normally? What is the data recovery after replacing two new hard disks?

2- In the V1 S5500T, for example, the 24 hard disks in the controller enclosure are all 600G SAS disks. 7 disks in RAID5. The last 3 disks are used as global hot spare disks.

The first 4 coffer disks are each divided into 23G of space for RAID10 0-6 hard drives and the remaining 577G are used for 7 disks RAID5?

Does the 4th to 6th hard disk have 23G of unused space per disk

3- In V2 V3 RAID2.0, has the space of 23G per disk of No. 4 to 6 hard disks been used?

Thanks