Solaris Web Start lays out file systems for you automatically. It mirrors what the Solaris Interactive Installation program does.
The file system configurations that Solaris Web Start automatically provides will be adequate for virtually any situation. However, you might consider laying out file systems manually if:
There are other products, not included in your product box, that you need to install, and these products must share the same file systems (root, /usr, and /swap) used by the co-packaged software in the product box.
Your experience has been that the file systems provided by Solaris Interactive Installation do not work for your situation.
If you do need to lay out file systems manually, Solaris Web Start gives you the tools to do so easily. A series of simple screens break down the job of setting up file systems into manageable chunks in which you:
Select which disks you want
Select which file systems you want
Create, rename, move, delete, expand, or shrink file systems
View a summary of your choices and confirm them
Editing file systems requires advanced system administrator's knowledge. You should not alter file system layouts unless you are experienced in this area.