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19 TB High‑Performance Use Case

A 19 TB high-performance array: maxRAID against MD RAID, Xinnor and GRAID, on day one and over five years.

By Doug Dumitru, CTO · October 19, 2024

This evaluation compares a 19TB high-performance storage system, assessing maxRAID against conventional RAID solutions like MD RAID, Xinnor, and GRAID. Conventional RAID depends on high-endurance SSDs for longevity; maxRAID reaches the same performance on lower-endurance drives, using compression and write linearization to reduce wear. We assume 20% data compressibility for general-purpose data.

Day one: building a 19 TB high‑performance array

Day oneRAID‑10RAID‑5maxRAID‑5
PerformanceGoodPoorGood
Drives6 × 6.40 TB4 × 6.40 TB6 × 3.84 TB
Drive cost¹$6,672$4,448$3,234

Day‑one savings: $3,438 vs RAID‑10.

maxRAID-5 matches RAID-10’s performance at about half the drive cost — $3,234 vs $6,672. RAID-5 costs less upfront, but its random-write performance is poor and its SSDs wear out in about 2.9 years. maxRAID-5 uses lower-cost 1 DWPD drives with no replacements in five years.

Over five years

Five yearsRAID‑10RAID‑5maxRAID‑5
SSD life5 years2.9 years5+ years
Five‑year SSD replacement cost¹$0$4,448$0

Over five years, maxRAID‑5 costs $5,662 less than RAID‑5 ($3,234 vs $4,448 + $4,448), with RAID‑10 performance.

¹ Based on Micron 3 DWPD 6.4 TB drives at $1,112; maxRAID uses 1 DWPD 3.84 TB drives at $539. Drive costs only; excludes host system and software licenses.