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Disk Raid and IOPS Calculator

Expedient’s Disaster Recovery as a Service solutions have been recognized in the Gartner Magic Quadrant for DRaaS and offer fast, total network failover without IP and DNS changes.

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Hard Drive Type

Hard Drive Capacity

Number of Drives

Read Percent

Write Percent

*Assumes NO Hot Spares
*SSD IOPS Is An Estimate Due to SSD/NAND Performance Differences

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	CAPACITY	IOPS
RAID 10
RAID 6
RAID 5

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Features	RAID 1+0	RAID 6	RAID 5
Diagram
Minimum # of Drives	4	4	3
Data Protection	Up to one drive failure in each sub-array	Two drive failure	Single drive failure
Read Performance	High	High	High
Write Performance	Medium	Low	Low
Read Performance (Degraded)	High	Low	Low
Write Performance (Degraded)	High	Low	Low
Capacity Utilization	50%	50% - 88%	67% - 94%
Typical Applications	Fast Databases, Application Servers	Data Archive, Backup to Disk, High Availability Solutions, Web Servers, Servers With Large Capacity Requirements	Data Warehousing, Web Serving, Archiving

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