Introduction

maxRAID combines four techniques to optimize your All Flash Array:

• A "near theoretical" FTL that linearizes all writes and minimizes Flash write amplification.
• Placement above the RAID engine that eliminates the overhead of in-place READ/MODIFY/WRITE random updates.
• Flexible storage of empty blocks so that zero/FFFF/trim blocks all consume zero space.
• In-line block-level compression that reduces the actual amount of data stored.

The Calculators

These calculators let you play "what if" with parameters that determine the size and wear of your array. Wear and performance are linked with lower wear equating to higher perforemance.

The calculators let you specify several parameters that might include:

• The number of SSDs
• The size of the SSDs
• The target usable capacity
• The target AWPD (Array Writes Per Day)
• The amount of free space on the volume
• The compressibility of the stored blocks