Español
中文
العربية🔐 A Guide to RAID Array Types – Ranked by Data Security
When setting up your ggRock system, choosing the right RAID type is crucial for balancing data protection, performance, and storage capacity. Below is a ranked list of popular RAID types, sorted by how well they protect your data – complete with ⭐ star ratings for quick reference!
🥇 RAID 10 – Mirrored + Striped
⭐⭐⭐⭐⭐ Data Security
- Minimum Disks: 4 (even number)
- Striping: ✅ Yes (for performance)
- Mirroring: ✅ Yes (for redundancy)
- Fault Tolerance: Can survive multiple disk failures (if not from the same mirrored pair)
- Capacity: 50% of total disk space
- Best For: Critical systems needing top-tier performance and redundancy
💡 Choose RAID 10 for the best of both worlds—performance and protection.
🥈 RAID 7 / RAID-Z3 – Triple Parity
⭐⭐⭐⭐⭐ Data Security
- Minimum Disks: 4
- Striping: ✅ Yes
- Parity: Triple distributed
- Fault Tolerance: Survives 3 disk failures
- Capacity: Total disks - 3
- Best For: Ultra-secure storage with room for multiple failures
💡 Choose RAID 7 if your data is extremely important and uptime is everything.
🥉 RAID 6 / RAID-Z2 – Double Parity
⭐⭐⭐⭐ Data Security
- Minimum Disks: 3
- Striping: ✅ Yes
- Parity: Double distributed
- Fault Tolerance: Survives 2 disk failures
- Capacity: Total disks - 2
- Best For: Strong data security with decent space efficiency
💡 Choose RAID 6 if your data is very important and needs solid protection.
RAID 5 / RAID-Z – Single Parity
⭐⭐⭐ Data Security
- Minimum Disks: 3
- Striping: ✅ Yes
- Parity: Single distributed
- Fault Tolerance: Survives 1 disk failure
- Capacity: Total disks - 1
- Best For: Balanced setup between space and protection
💡 Choose RAID 5 if your data is important but you want more usable capacity than mirrored solutions.
RAID 1 – Mirrored
⭐⭐⭐ Data Security
- Minimum Disks: 2+
- Striping: ❌ No
- Mirroring: ✅ Yes (full duplication)
- Fault Tolerance: Survives all but one disk failing
- Capacity: Equal to the smallest disk in the array
- Best For: High redundancy for small arrays
💡 Choose RAID 1 if you're storing important data and want simple, solid protection.
RAID 0 / SingleDrive – No Redundancy
⭐ Data Security
- Minimum Disks: 1
- Striping: ❌ No
- Parity: ❌ None
- Fault Tolerance: None — single disk failure = total data loss
- Capacity: 100% of available space
- Best For: Speed or testing, not safety
⚠️ Choose RAID 0 or SingleDrive only if your data is disposable or frequently backed up elsewhere.
⚙️ ggRock RAID Configuration
In ggRock, all drives are unified into a storage pool. This allows maximum performance and efficient use of installed drives. The selected RAID level determines how data is stored and protected inside this pool.
📘 For step-by-step setup, see the "Configure ggRock Array" section in the ggRock Installation Manual.