Ubuntu Linux is used as Operating system (replaces Debian that works fine, but seems end-of-life). It allows mirroring of disk partitions, allowing us to use a any disk available, not necesserally paired.
For reliability, all data is mirrored:
LVM (logical volume manager) is used to turn available odd-shaped physical disks into usable virtual disks.
First a small description of the BBS server (hardware),
mirroring and logical volumes (software):
About the BBS2
Mirroring, logical volumes, virtual disks
For mirroring you need 2 or more disks, not necesseraly equally sized. USB disks can be included in mirrors as well.
Using locical volumes,
there is no relation anymore between the physical disk sizes,
and the used virtual disk sizes anymore.
You can add/replace physical disks when available, and you can resize logical disks later when desired.
(As long as the total of logical disks sizes is smaller than half the total of physical disk size (mirrored, remember ?).)
The steps are:
1. Dedicate an install-disk
2. Download Ubuntu
3. Connect a keyboard, mouse, and video.
4. Bios settings
5. Installing Ubuntu from memory stick
6. Connect to the Internet
7. Download scripts from this site
8. Bios settings
9. Install Linux software packages
9. Partitioning disks
10. Save your data from the other disks
11. Convert the system
11. Partitioning disks
12. create boot mirrors
13. create logical volumes
14. copy the root disk to a logical disk
15. create a boot disk
17. Add the free disk to the mirror
18. Remove superfluous files
19. Upgrade software
21. Samba shares
24. Partitioning disks manually
80. Users and groups (local info only)
91. Errors and problems