Planning a New Hard Disk
As mentioned above, the subsequent change of an already carried out partitioning is very difficult. This means you should think about what you want very carefully before you start formatting a hard disk.
1. Operating Systems
First, determine how many and which operating systems you would like to install. Remember that many operating systems cannot be booted from any other partition than the primary one. If you are planning to create more than four partitions, you should use a bootmanager, which can utilize more than four partitions (e.g., the bootmanager BootStar).
Also, remember that computers are usually booted only from the first hard disk exclusively. If you would like to boot from a different hard disk than the first one, you have to use a bootmanager that supports this (e.g., the bootmanager BootStar). Even if the bootmanager permits booting from another hard disk it does not mean that this will always work with every other operating system.
2. File Systems
Next, you should be thinking about the type of file system you would like to use. It is a good idea to use a separate file system (partition) for every operating system so that the operating systems do not interfere with one another or destroy each other.
Here, you should take into consideration which operating system you will use to access another file or operating system (partition).
Also take partitions without operating system into account, which you might use to save "only" files. These partitions can usually also be secondary partitions without causing any problems.
3. Operating System Problems
Please make sure that your requirements are realizable.
One of the biggest problems is that not all operating system are able to access all file systems. Even if the possibility exists, some file systems may have only a limited size or can be located only in a certain area on the hard disk.
There is virtually no type of system planning that does not have some sort of restriction for the operating systems on the partitions.
4. Hardware and Software Problems
Your final check should ensure that your plan is compatible with your hardware. Some hardware products have limitations (errors).
Problems may also occur if you are using other software to manage file systems (e.g., Drive Imager) or partition tables (e.g., bootmanager programs).
Pay attention to this planning very, very carefully!!!