Omnius

Omnius is the main server providing services on the calafou internal network (".calafou").

How the disks are connected?

Omnius has an old motherboard without SATA support. The workaround is that there is a RAID controller card installed in a PCI slot. However, the RAID controller card driver is not working with Debian, so we actually use software RAIDs. The function of the RAID controller card is simply to provide 4 SATA ports where we can connect hard drives.

Which disks are connected?

There are many disks in omnius.

1. Operating system. 2. Operating system RAID1 (copy). 3. apt-cacher (proxy for caching Debian packages). 4. pxe (networking booting for installing Linux on machines that are connected to the local network). 5. Alexandria (mainly media files like films and music). 6. Alexandria RAID1 (copy).

What are the BIOS problems?

Blinking cursor: After the message "Successfully installed BIOS" the screen goes black and there is only a blinking cursor. The solution to this problem is to turn off the "BBS support" option in the RAID controller menu, in the SATA configuration section (enter with Control-A when booting).

What are the basic hardware specifications?

RAM: omnius has 1GB of RAM. The motherboard has 4 slots which are divided into two banks. Each bank has to have identical amount of RAM. At the moment only the first bank is used and there are two 512MB RAMs installed in them.