RAID 0 vs. RAID 1: Speed, Safety & Storage Explained

RAID 0 stripes data across drives for speed, RAID 1 mirrors data for safety. Both are RAID arrays, but one chases performance, the other resilience.

Builders mix them up because both use two drives and promise “more.” Gamers want RAID 0’s raw fps; parents with baby photos think RAID 0 backs up—until one disk dies and memories vanish. That confusion fuels the debate.

Key Differences

RAID 0 splits files into pieces on two disks, doubling speed yet doubling failure risk. RAID 1 writes every byte to both disks, halving capacity but giving instant recovery if one fails.

Which One Should You Choose?

Gamers and video editors: pick RAID 0 for blistering load times—back up nightly. Families and small businesses: pick RAID 1 for peace of mind; speed is “fast enough” and photos stay safe.

Can I add more drives later?

RAID 0 allows expansion but rebuilds from scratch; RAID 1 usually requires identical new drives.

Does RAID 1 replace cloud backup?

No. It only guards against disk failure; fire, theft, or ransomware still need off-site backup.

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