Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Get up to 16x more storage and 2x the speeds of the original drive
Handpicked deals...
$1299 $1299
SAVE $0

$390 $270
SAVE $120

$1798 $1598
SAVE $200

$3297 $2797
SAVE $500

$3397 $2797
SAVE $600

$150 $90
SAVE $60

$1398 $898
SAVE $500

$3698 $2998
SAVE $700

$2998 $2498
SAVE $500

$1999 $1999
SAVE $0

$1799 $1299
SAVE $500

$1999 $1199
SAVE $800

$2299 $1599
SAVE $700

$2399 $2049
SAVE $350

$2799 $2399
SAVE $400

$2799 $1899
SAVE $900

$1199 $920
SAVE $279

$1349 $1049
SAVE $300

$997 $897
SAVE $100

$2099 $1699
SAVE $400

$1999 $1349
SAVE $650

$1999 $1599
SAVE $400

$1999 $1999
SAVE $0

$1329 $929
SAVE $400

$4499 $3999
SAVE $500

$329 $329
SAVE $0

$1499 $999
SAVE $500

$1499 $1289
SAVE $210

$2199 $1999
SAVE $200

$3399 $2199
SAVE $1200

$2468 $1768
SAVE $700

$1279 $1279
SAVE $0

RAID-1 Mirror (SoftRAID, Thunderbolt v1)

OWC Thunderbay

Various configurations starting at about $499 without drives.
Thunderbay RAID-5 edition also available.

Tests shown here uses the fastest portion of the drives in order to show the peak speeds possible with the Thunderbay; all hard drives slow down as they fill up, as per the simple physical fact of πD (track circumference).

The Thunderbay performed admirably, as did the Toshiba MG03ACA300 hard drives, which offer very impressive performance.

Results

Tested with the Thunderbay IV (Thunderbolt, not Thunderbolt 2).

SoftRAID 5 beta was used in order to explore the performance of RAID 5.

The OWC Thunderbay was tested using four Toshiba MG03ACA300 hard drives. These are very fast drives as of 2014.

Tests performed using DiskTester, specifically the fill-volume command.

Results shown are real-world throughput through the file system API (not unachievable driver-level throughput).

This 4-way mirror is an interesting test of bus bandwidth, because software RAID-1 mirror means the driver has to send four copies of the data when writing, one to each drive. So a write speed of 180MB/sec really means that 720 MB/sec is going out over the bus. The performance see here thus has to be considered excellent.

For writes, performances is identical with 2/3/4 drives. But for reads, a benefit is obtained by reading from more than one drive. Throughput is not nearly so fast as RAID 0 striping, but it is of significant benefit for reads and is about all that can be expected from a mirror.

Those looking for high fault tolerance might find a 3-drive RAID-1 mirror a highly appealing setup, since it delivers read speeds quite satisfactory for even fairly demanding tasks.

RAID 1 X 4: 180 / 336	write/read MB/sec  (four drives)
RAID 1 X 3: 181 / 278 write/read MB/sec (three drives)
RAID 1 X 2: 182 / 192 write/read MB/sec (two drives)
OWC Thunderbay performance with RAID-1 mirror

 


Deals Updated Daily at B&H Photo
View all handpicked deals...

Samsung 2TB T5 Portable Solid-State Drive (Black)
$390 $270
SAVE $120

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__