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...
Up to 1527MB/s sustained performance

RAID-0 Scalability with Thunderbolt 2: Separate Bus or Daisy Chain?

Following up from the prior research using three OWC Thunderbay 4 units, I wondered what effect using three Thunderbolt 2 busses on the 2013 Mac Pro would have instead of daisy chaining.

The result show that somewhere around 6 drives, daisy chaining starts to break down, even with Thunderbolt 2 as here. Hence careful choice of which devices go on which bus is key for high performance systems (and these are hard drives, not SSDs). It might mean (for example) housing four drives in two enclosures so that each enclosure can have full bandwidth, e.g. for SSDs.

Also, in spite of its two ports, the late 2013 MacBook Pro has only one Thunderbolt bus, so it maxes out quickly. As of this writing only the 2013 Mac Pro offers more than one Thunderbolt 2 bus.

RAID-0 striping scalability using OWC Thunderbay 4 with 5TB hard drives

MacPerformanceGuide.com
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 92 min unless noted. Certain deals may last longer.
$1099 SAVE $600 = 35.0% $16 FREE ITEMS Canon 18x50 IS Image Stabilized Binocular in All Other Categories
$2797 SAVE $600 = 17.0% $246 FREE ITEMS Nikon Z 7 Mirrorless in Cameras: Mirrorless
$1329 SAVE $170 = 11.0% ZEISS 18mm f/2.8 Batis in Lenses: Mirrorless
$1169 SAVE $130 = 10.0% ZEISS 25mm f/2 Batis in Lenses: Mirrorless
$1169 SAVE $130 = 10.0% ZEISS 40mm f/2 Batis CF in Lenses: Mirrorless
$1501 SAVE $297 = 16.0% ZEISS 85mm f/1.4 Milvus ZE in Lenses: DSLR

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__