The next free method of upgrading your storage set up is to alter your RAID level. Now this is something for the more technically minded and may very well not apply to you as this is only really an option for those with 2 or more Hard Drives or SSDs in their storage environment. However if you are able to alter your RAID setup, than this can be a cost effective way of improving performance or capacity levels. Recommended RAID levels are below:
JBOD – all drives are lose and singular – no combination and joining
RAID 0 - Creates a giant drive combining all available capacity as well as improving Read and Write Speeds. However there is no redundancy
RAID 1 – Constantly creates a clone of the contents of one disc onto the other and increases Read and Write Speeds as well as providing total Redundancy. However it halves your capacity
RAID 5 – Needs at least 3 Disks, you effectively lose 1 disk of capacity, which acts as redundancy. Read speeds are faster however write speed is decreased due to background calculations
RAID 6 – Needs at least 4 Disks, you effectively lose 2 disks of capacity, which acts as redundancy. Like RAID 5, Read speeds are faster however write speed is decreased due to background calculations
RAID 10 (aka RAID 1+0) - Needs at least 4 Disks, pairs the discs up and mirrors between them (like RAID 1) and provides much faster rebuilds in the event of drive failure. However you lose a total of Half the available capacity to keep a sufficient clone of the data (eg 4x 4TB drives would result in 8TB of available storage) so it is an expensive choice.