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Save Big $$$$ on Memory for 2019 Mac Pro

Up to 65% better pricing than Apple

Lloyd recommends 32GB RDIMM modules for most users (more expensive LRDIMMS are for 512GB or more).


HGST Ultrastar He8 Performance: RAID 1+0

Last updated 2015-11-11 - Send Feedback
Related: hard drive, HGST, RAID, RAID-1, storage

Get HGST 8TB Ultrastar He8 Hard Drive at OWC.
Also utilized in the 32TB OWC Thunderbay 4 RAID-5 edition.

RAID 1+0 is a “striped pair of mirrors”. The goal of RAID 1+0 is to double performance and capacity while allowing potentially more fault tolerance than RAID-5. Data is striped (RAID 0) over mirrored sets (RAID 1) of drives for fast redundancy.

RAID 1+0 requires four drives (or 6, 8, etc). With four drives, two mirrors are created of two drives each, and those two mirrors are then striped. This allows one drive from each mirror to fail, but failure of both drives of a mirrored pair fails the RAID.

Performance testing by DiskTester, part of diglloydTools.

Drives hosted in the OWC Thunderbay 4 with software RAID by SoftRAID 5.1b21.

RAID 1+0 sustained transfer speed

DiskTester run-sequential used to test peak speed of empty volume, freshly erased. Throughput figures are real-world figures through the OS X file system.

Performance is about what might be expected: about the speed of a 2-drive RAID-0 stripe.

Sustained transfer speed, four HGST 8TB Ultrastar He8 in RAID 1+0 configuration
New Mac Pro?

Or iMac 5K or iMac Pro?
Consult with Lloyd ASAP before buying!


System configuration for CPU, GPU, memory, SSD, backup, RAID, optimizing performance, workflow.
For YOUR optimal workflow

Avoid costly mistakes in throwing money at the problem for less performance and/or buying the wrong machine for your own needs!

Remote screen sharing available for RAID, software configuration, etc.

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