I would advise making the following changes:
Use your SSD for the OS
You have tons of hard drive space with your HDDs. Therefore, I would use the entire SSD for your /
partition.
Also, I would move your swapdrive off of the SSD because, well, SSDs aren't the best for swapping.
Similarly, I would move your /tmp
folder off of the SSD.
Set Up LVM
You have six hard drives available. Set up a LVM system spanning the six full HDDs. This will act similar to a RAID, but will offer you slightly better performance and will allow you to define more partitions faster. All in all, LVM is a Good Thing™.
If you want to use a RAID-like striping setup, there are ways to do that, but they're not the simplest. However, I'm guessing that you're using RAID as a form of backup. This is a very very very bad idea. RAID has never been and will never be a replacement to backing up.
On your LVM system, I would create a 16GB swap partition. From there, assign another 100GB to /tmp
so you can have a reliable tempdriver without murdering your SSD. Send the rest to your /home
partition, or even better, a specific partition for storing files (maybe /files
?).