Let's assume you have a system with two SCSI disks, one at SCSI address 2
and the other at SCSI address 4. The first disk (at address 2) is then
named sda and the second sdb. If the sda drive has three partitions on it,
these will be named sda1, sda2, and sda3. The same applies to the sdb disk
and its partitions. Note that if you have two SCSI host bus adapters
(i.e., controllers), the order of the drives can get confusing. The best
solution in this case is to watch the boot messages, assuming you know the
drive models.

Recommended Partitioning Scheme

As described above, you should have a separate smaller root partition and
a larger /usr partition if you have the space. For most users, the two
partitions initially mentioned are sufficient. This is especially
appropriate when you have a single small disk, because creating lots of
partitions can waste space.

In some cases, you might need a separate /usr/local partition if you plan
to install many programs that are not part of the Debian distribution. If
your machine will be a mail server, you may need to make /var/spool/mail a
separate partition. Putting /tmp on its own 20 to 32MB partition, for
instance, is a good idea. If you are setting up a server with lots of user
accounts, it's generally good to have a separate, large /home partition to
store user home directories. In general, the partitioning situation varies
from computer to computer depending on its uses.

For very complex systems, you should see the Multi Disk HOWTO. It contains
in-depth information, mostly of interest to people setting up servers.

Swap partition sizes should also be considered. There are many views about