As a follow-up from the thread:
[forums.macresource.com]


Since I had a second SSD, I thought to buy the Sabrent USB 3.0 enclosure. I re-did the test with the same SSD. Not bad...a 10% speed improvement and it is noticeably faster on booting:

Results 364.47
System Info
Xbench Version 1.3
System Version 10.10.2 (14C109)
Physical RAM 24576 MB
Model iMac14,2
Drive Type ASMT 2105
Disk Test 364.47
Sequential 216.35
Uncached Write 402.31 247.01 MB/sec [4K blocks]
Uncached Write 293.49 166.06 MB/sec [256K blocks]
Uncached Read 91.41 26.75 MB/sec [4K blocks]
Uncached Read 604.01 303.57 MB/sec [256K blocks]
Random 1155.79
Uncached Write 1213.26 128.44 MB/sec [4K blocks]
Uncached Write 642.33 205.63 MB/sec [256K blocks]
Uncached Read 2266.79 16.06 MB/sec [4K blocks]
Uncached Read 1565.84 290.55 MB/sec [256K blocks]

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All I ever really needed to know, I learned from watching Star Trek.

Wowzer,

Which model enclosure? I'm searching for a well-designed, higher quality USB 3.0 enclosure that supports UASP. So far, I'm happy with a particular unit from StarTech but I'm always on the look out for alternatives.

Robert

[www.amazon.com]

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All I ever really needed to know, I learned from watching Star Trek.

Quote
wowzer
[www.amazon.com]

Is that the correct product, it's a USB 2.0 enclosure for $6.99.

Quote
GGD

Quote
wowzer
[www.amazon.com]

Is that the correct product, it's a USB 2.0 enclosure for $6.99.

I think he meant the one to the right, there are some USB3 models in there at $12.99

Quote
Robert M
Wowzer,

Which model enclosure? I'm searching for a well-designed, higher quality USB 3.0 enclosure that supports UASP. So far, I'm happy with a particular unit from StarTech but I'm always on the look out for alternatives.

Robert

Specs do not specify UASP support. They don't even list the SATA bridge speed.
Of course for $13, I wouldn't expect too much.

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The SATA bridge speed is SATA-III, based on wowzer's 256K Read results.

MrNoBody,

Many of the dirt cheap enclosures support UASP now. I wouldn't purchase a box that doesn't offer it.

Robert

why is UASP so important?

Strange...my enclosure is plastic, not aluminum. That was the link from my Amazon purchase.

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All I ever really needed to know, I learned from watching Star Trek.



Edited 1 time(s). Last edit at 03/06/2015 09:54PM by wowzer.

Wowzer,

This is a huge issue I have with Amazon.com. It's easy to jump to the siteand look at a particular enclosure. The problem they group lots of info together now. Follow that link, it displays all the enclosures but they aren't the same. Click on one of the others and the info changes to reflect that enclosure. Yet, they all appear to be listed in the same group. Amazon does the same thing with reviews. You can read a great review ony to find it's for a different model. Very annoying.

Robert

P.S. Space, UASP is a newer standard that's in the USB 3.0 spec. Or, so I've been led to believe. The result is noticeably improved performance over enclosures that lack it.

Thanks, I did look up the term and now I know what it means (USB Attached SCSI Protocol). Wikipedia has an article about this, but it lacks details. I am looking at other sites to see what this means in real world. Funny how SCSI is still mentioned these days, if not in the hardware form (remember those terminators, and I think we had to change some switches to have unique IDs on a given bus), at least in "software" form (protocols).

Long live SCSI!

SCSI VooDoo Magic!











Did I terminate the last device in the chain???

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All I ever really needed to know, I learned from watching Star Trek.



Edited 1 time(s). Last edit at 03/14/2015 09:10PM by wowzer.