For backup, WD Caviar Green is the best one. You can also buy a casing and turn it into an external drive to make it more safer.
Linking two drives together is good. But if just storage is concerned then i suggest keeping them separate, you dont want to lose all your data at once.
OK I will keep it in mind, but how does one link two drives together? And what is the probability of a run-of-the-mill HDD to fail?
I thought by linking you meant RAID.
One thing i can say, is that too many power cuts causes the HDD to become bad quickly. I have a lot of that problem here in my city. There are frequent power cuts and i have lost my UPS.
Otherwise there is not general rule for a HDD to fail. Just keep it neat and tidy that's all.
Thanks for all your help up until now! I don't really know much about HDDs, so I don't know how to handle this. All I want to know is if I bought a new hard drive, how would I add it as another partition or possibly merge it with the already existing one?
BTW, nice avatar :P
Just do a little bit of reading. In two days you would know a lot. Getting to know HDD's is not that tough.
Just plug the new drive into a free SATA port and make sure the port is enabled in the BIOS. Assuming you're running windows, go into "disk management" to initialize, partition, & format the new drive. Assign it a new letter and you're good to go.
Thanks! If I do buy this drive, I 'll be sure to do that