Support for multiple DAOS volumes

Today DAOS supports only a single store with directories from 0001 to 9999.
Specially for larger enviroments a single disk can become a limiting factor.
Disks can be quite large today, but if you have to guarantee a recovery response time, splitting up the disks would be important.


A simple additional layer would be helpful to map disks.

DAOS should then just use new additional intermediate directories.

Additionally DAOS could check the size and the free space on each of those disks to optimize distribution of NLOs.

[ Daniel Nashed / HCL Lifetime Ambassador ]

Example:

daos

├── disk1

│   ├── 0001

│   ├── 0002

│   └── 0003

├── disk2

│   ├── 0001

│   ├── 0002

│   └── 0003

└── disk3

├── 0001

├── 0002

└── 0003