All Posts by Date or last 15, 30, 90 or 180 days.
also by Lloyd: diglloyd.com photography and WindInMyFace.com
Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Handpicked deals...
$41 $41
SAVE $0

$200 $160
SAVE $40

$160 $130
SAVE $30

$4499 $2650
SAVE $1849

$3499 $2199
SAVE $1300

$2399 $2159
SAVE $240

$1499 $1148
SAVE $351

$590 $472
SAVE $118

$1299 $997
SAVE $302

$1199 $1015
SAVE $184

$3999 $2499
SAVE $1500

$1498 $1098
SAVE $400

$2897 $1797
SAVE $1100

$3297 $1897
SAVE $1400

$870 $749
SAVE $121

$3499 $2199
SAVE $1300

$3599 $2399
SAVE $1200

$4499 $2650
SAVE $1849

$748 $598
SAVE $150

$899 $699
SAVE $200

$799 $729
SAVE $70

$3599 $2399
SAVE $1200

$3499 $2199
SAVE $1300

$4499 $2650
SAVE $1849

$1997 $897
SAVE $1100

$799 $349
SAVE $450

$3099 $2499
SAVE $600

$2799 $2199
SAVE $600

$4999 $4599
SAVE $400

$4499 $2650
SAVE $1849

Upgrade the memory of your 2018 Mac mini up to 64GB

TESTED: OWC 40TB Thunderbay 4 Mini SSD with RAID-0 Stripe and RAID-4 Fault Tolerance

GetOWC Thunderbay 4 Mini SSD RAID Edition at MacSales.com.

Following up on yesterday’s overview of OWC 40TB Thunderbay 4 Mini SSD, below are performance results with both RAID-0 striping and RAID-5 fault tolerance.

RAID-0 striping

This is the best performance MPG has ever seen with Thunderbolt 2 (or from any external SSD). It sets the new benchmark.

  • Read performance flatlines at 1425 MB/sec
  • Write performance flatlines at 1192 MB/sec
30TB RAID-5 SSD: OWC Thunderbay 4 Mini

Those are average figures across across a gigantic 39.37TB volume! Context: those figures beat the internal 1TB SSD in the MPG 2013 Mac Pro. It looks like Thunderbolt 2 has throttled the read performance. MPG expects OWC to offer a similar solution with Thunderbolt 3 in 2017, in which case the read speeds should rise to even higher levels.

RAID-4 (fault tolerance)

This is the best performance MPG has ever seen with Thunderbolt 2 (or from any external SSD). It sets the new benchmark.

  • RAID-4 Read performance flatlines at 1224 MB/sec
  • RAID-4 Write performance flatlines at 853 MB/sec

The RAID-4 performance is outstanding in two ways:

  • Flat line consistency across the entire 29.8TB volume.
  • Data rates within a few percent of the theoretical speed, that is, 75% of the speed of RAID-0.

It’s a superlative performance from four SSDs in the Thunderbay 4 Mini witih SoftRAID.

Tested using a> disktester fill-volume --xfer 128M with diglloydTools disktester

Graph shows writes read filling the volume to 99% capacity with 1000 test files.

RAID-0: Write @ 1137 MiB/sec = 1192 MB/sec, Read @ 1359 MiB/sec = 1425 MB/sec
RAID-4: Write @ 814 MiB/sec = 853 MB/sec, Read @ 1167 MiB/sec = 1224 MB/sec
RAID-5: Write @ 814 MiB/sec = 854 MB/sec, Read @ 1003 MiB/sec = 1052 MB/sec

Sustained transfer performance with a 40TB RAID-0 stripe vs 30TB RAID-4 SSD configuration in OWC Thunderbay 4 Mini

MacPerformanceGuide.com
View all handpicked deals...

Apple AirPods with Wireless Charging Case (2nd Generation)
$200 $160
SAVE $40

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__