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Sequential Speed of Large Transfers with SSDs
Related: Other World Computing, OWC Thunderbay, RAID, RAID-0, RAID-4, RAID-5, SSD, storage, Thunderbolt, video
MPG tested the throughput of the OWC Thunderbay 4 Mini using DiskTester run-sequential-suite on a late 2013 MacBook Pro Retina (Thunderbolt 2).
SSDs: OWC Mercury Extreme Pro 6G.
disktester fill-volume --xfer 128M
64K stripe size.
Shown below are four SSDs configured three different ways: RAID-0 stripe, RAID-5, RAID 1+0. Speeds are throughput through the OS X file system, as a an application would do.
SoftRAID 5 delivers an outstanding performance using four SSDs no matter which type of RAID is used. The highest performance is RAID-0 (striping), then RAID-5 (striping with parity) and then RAID 1+0 (striped mirrors).