Well...to be honest...since the advent of SSDs, I don't even consider putting the O/S on a large hard drive. I install the O/S on an SSD...and use all my other hard drives (I have a ton of them) for data storage and backups.
I do this because it seems to make sense, not because I'm innovative or eager to buy/use the newer hard drives.
SSDs are the right size to contain an O/S or multiple O/Ses. They don't require the defragging that PATA/SATA large hard drives require and, even if they did, they are small enough that any disk maintenance could be accomplished quite quickly.
One other thing I've noticed...when there are multiple partitions on the same hard drive...moving data to/from those partitions takes longer than if I were moving the data to a separate drive. While I appreciate the fact that a drive can contain 3GB of data...I don't like to put all my data at risk on one drive, preferring to have 2 or 3 smaller drives (500GB to 1TB) for storage, rather than 1 large 2TB or 3TB drive.
If the Windows partition is on a separate drive...which I can easily clone to a spare drive for purposes of potential disasters...then I feel a lot better and more secure about the possibility of hard drive failure and the ensuing data loss. Multiple partitions on the same hard drive...don't really address this prospect that we all face and if flies in the face of reality...in that, when hard drive failure occurs, it may affect the entire drive...not just one partition on the drive.
Large hard drives are definitely a plus in today's world...but some risk management should be considered before purchasing such. I'd rather lose a 1TB drive with some of my data stored on it...than a 2TB or 3TB drive with all my eggs in one basket.
Laptop owners don't have much choice....but we desktop owners...we can do what we can to minimize the frustration that failing hard drives bring to many.
Since hard drives, IMO, are the system hardware item which fails more frequently than any other...I don't believe in pretending that one giant hard drive is the best way for anyone to go when setting up a system.
Edited by hamluis, 14 July 2013 - 01:10 PM.