Why does not Hyperdeck shuttle 2.5 and my af100 play well together

[robbin]

Getting new ssd today to test. My sandisk extreme 120g might be the culprit. But read somewhere about a guy who used wd 7200rpm 2.5 hdd to capture dnxhd 720p from camera
Found these info on dvinfo.com forum:


BMD Hyperdeck FAQs:

The following SSD's are (re)commended for uncompressed video capture:
1.OCZ 240GB Vertex 3
2.OCZ 480GB Vertex 3
3.Crucial 256GB C300
4.Kingston 64GB SSDNow V+
5.Kingston 128GB SSDNow V+

OLD VS NEW
There may be good reasons for using older SSD's with Toshiba T6UG1XBG controllers as they have always on garbage collection that gets around the lack of OS TRIM support of the shuttle, and no compression of files, so advertised speed = actually speed for incompressible data like UC 1080p HD.
Some older SATA 2 drives do better than new SATA 3's:
http://www.anandtech.com/show/4316/o...240gb-review/6
Compare the OZC Vertex 3 120Gb(161.9Mb/s ISWS) to the Corsair Nova 128Gb(184.3Mb/s ISWS).
The OZC Vertex 240(284.4Mb/s ISWS) is approved by BMD but not the 120Gb(161.9Mb/s ISWS).

LACK OF OS TRIM SUPPORT
The Kingston SSDNow V+100 128GB, which is approved for use by BMD, addresses the lack of OS TRIM support by the Shuttle.
AnandTech - Kingston SSDNow V+100 Review
Without these features, drives will need to be periodically secure erased, as the nature of SSD's is such that constant writing and erasing causes the drives to lose performance.
Secure erasing is the SSD equivalent of defragging, but all data is lost, not an issue for a media disk though.
Secure erasing can be quite a challenging and risky process for the inexperienced.
Experimenting with SE, I cooked 2 Force 60 drives that did not support SE and had to RMA them.

NEW GENERATION SPEED
SSD's with the latest generation of Sandforce controllers, have seriously high Sequential Write speeds, but the important spec is Incompressible Sequential Write speed which is significantly lower than the former.
AnandTech - The SandForce Roundup: Corsair, Kingston, Patriot, OCZ, OWC & MemoRight SSDs Compared
For example, the OZC Vertex 3 240Gb, which is also approved by BMD for the shuttle.
It has the new SATA 3 interface and has a Sequential Write speed of 480Mb/s, but an Incompressible SWS of 284.4Mb/s.
Since the Shuttle is SATA 2 the full performance benefits are not available to the Shuttle, nor will they be needed.
We only need to clear the hurdle of 134-161Mb/s ISWS to record 1080p 25-30fps.
However, the overhead of backward compatibilty of SATA 3 to 2, and the need to handle Incompressible files, reduces the performance of most of these new generation SSD's down to barely coping with 161mb/s ISWS.

SIZE
A further factor is the size of the SSD.
Due to SSD structure, 240Gb SSD's are double the speed(for Incompressible data) of 120Gb ones.
Again, the OZC Vertex 240 is approved by BMD but not the 120gb.

NAND
Lastly, some new SSD's use Aynchronous NAND , and others use Synchonous NAND which is faster.
It seems a 120Gb drive with the new Sandforce controller, and Synchronous NAND, will just scrape over the line to meet specs for 1080 30p, 161mb/s ISWS.
Whereas SSD's without Synchonous NAND, like the OZC Agility 3 120Gb, and Corsair Force 3 120Gb, will not make the grade.
The Kingston HyperX 120Gb does the job for UC HD 1080 25 and 30p recording from my camera.
The Corsair Force GT 120Gb (161.5Mb/s ISWS) has similar specs to the HyperX and so should be enough for UC HD 1080 30p as well.

TO SUM UP
SSD's with new Sandforce SF-2281 controllers, preferably 240Gb, (or 120Gb with Synchronous NAND), will do the job.
You will have to Secure Erase once performance drops.
Unless you get a Kingston SSDNow V+100 128GB(192mb/s ISWS), then always on garbage collection will free you from lower performance, (but at the expense of shortening the life of the drive).

[Igelkott Film]

I don't know what to take from that??

[robbin]

your ssd seem to be on the list as a combatible ssd for uncomressed capturing. Mine is not so im getting another ssd to test my problem and to see if it is the ssd or the shuttle itself.
From the forum post i understand that ssd drives get slower over time so you need to do a secure erase to get top performance back. Your kingston model seem to be able to do it on the fly at the expense of shorten lifespan.
Dont think your problem is the ssd drive.

[Igelkott Film]

your ssd seem to be on the list as a combatible ssd for uncomressed capturing. Mine is not so im getting another ssd to test my problem and to see if it is the ssd or the shuttle itself.
From the forum post i understand that ssd drives get slower over time so you need to do a secure erase to get top performance back. Your kingston model seem to be able to do it on the fly at the expense of shorten lifespan.
Dont think your problem is the ssd drive.

AH ok

Shorter lifespan? Think i have lifetime as warranty

[robbin]

Any special way to setup af100 to send 25p over hdmi for recording on shuttle2?

[Igelkott Film]

Any special way to setup af100 to send 25p over hdmi for recording on shuttle2?

No, just connect it.

[dregenthal]

"The OZC Vertex 240(284.4Mb/s ISWS) is approved by BMD but not the 120Gb(161.9Mb/s ISWS)."

B&H sells a kit using that very SSD (the 120) with the Shuttle2.
Mine is scheduled to arrive next Tuesday . . . I'll report success or failure with it here once I've had an opportunity to try it.

[robbin]

I cant playback any file from shuttle2 on my computer. Files playback fine from shuttle direct to monitor. Anyone on win 7 and pc having problem with the shuttle files???
I can export a video in premiere to dnxhd and play back the files. But not any file from the shuttle. Must be some codec install problem.

[Video Dave]

robbin
How is the drive connected to the computer? You have to use some sort of SSD drive housing to put the drive in. You can't just hook up the Black Magic Shuttle to USB.

[robbin]

I use usb dock to put the ssd disc in and copy the files over to the computer