Quote:
Originally Posted by signupdamnit
Look into RAID1. It's two or more drives providing redundancy. If one drive fails you can keep working using the other(s). When you can you pull out the failed drive and replace it and rebuild the array. Particulary if on a *nix look into ZFS or BTRFS as well which can provide near RAID equivalents with other advantages.
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What he said. RAID1 is your solution and you can put it in a software RAID if the CPU is powerful enough. You will definately gain a speed advantage with 2 drives in a RAID1, disk i/o is the primary concern on modern day servers most hosting companies are pushing. We offer 2 drives in RAID1 by default on all of our dedicated server plans.