I assume "1-T" means "1TB"?
Your current setup is SSD, 1TB HDD, and 2TB HDD.... all of which are incremental backup weekly? Or is only some of the drives are backed up?
The only thing that could be done is JBOD, RAID0, or RAID1 with your HDDs.
JBOD (3TB usable) allows for one logical partition.... and provides no other benefits for your needs.
RAID0 (2TB usable) would nearly double the sequential performance but at the increase risk of failure.
RAID1 (1TB usable) provides redundency in case one disk fails.
Yes, the 1-T is 1 TB.
Just the raw data files are backed weekly, unless I do something major, in that case I backup shortly after.
On your three options (JBOD, RAID0, RAID1), since most of the operations are being done from the SSD, will I notice that big of difference with RAID0 ? or as that goes any of the options? (I've installed most of the programs to the SSD, and the data files to the HDD's.)
Thanks for your answer. I'll dig further and read more on RAID options. It's looks like I might use RAID0 just for the speed and continue backing up to a external source.
Well... what type of data are you storing on the HDDs? Media files? If so, I wouldn't use RAID0 due to the increase risk with little benefit. Streaming a high-quality HD video needs less than 10MB/s and most recent HDDs can do at least 60MB/s sequential at their worst.