[Daniel Fletcher]

This is likely a media issue. Potentially some high res stills, those photo jepgs, or another piece of media that failed to properly “ingest” during the creation of the project file or a sequence.

Also encode those MOV photo/jpegs to pro res.

The problem also sounds like the media cache database and cache location. Where are the machines pointing for that?

I know you said you have already attempted that but keep in mind that “cleaning” the cache will only remove items not currently used in the open project so its best to do with no project open or a test project open.
I have had more success doing it manually and rebooting.

Is the machine still generating .pek files during this “lag”?

Check the video previews location in the project settings too.

You can try to point the previews to the local internal ssd of a problem machine, delete the render files and re-render to prores previews. If this solves the issue then you know its the “render” location.

In your setup you will probably want that pointing to a local drive or the server but NOT one of the other edit machines.

[Daniel Fletcher]

look into a better folder and project structure so you and your students can more easily ID unique assets. i.e. assets that exist only on one volume/location.

Footage etc should be cloned to a separate location before entering post.
project files are typically small enough to be backed up to the “cloud” i.e. dropbox google drive.

This is a workflow and organizational issue primarily.

It sounds like you may want to add a media management course or section to your curriculum.

[Daniel Fletcher]

I would RMA that drive.
Ive had two G tech USB, 3 and 4 TB drives fail in similar fashion.
It seemed to be a drive firmware issue not hardware.

Just a heads up

[Daniel Fletcher]

Hey Greg What OS are you currently running?

[Greg Jones] “2008 Mac Pro 3,1
32GB Ram
GTX680 Nvidia Graphics Card
32TB Raid
AJA Kona 3G

Greg Jones
D7,Inc.
Orlando,FL.”

[Daniel Fletcher]

what kind of networking equipment are you utilizing this sync solution with?
Id imagine there is a fair bit of waiting involved if you are on Gb ethernet…
At least following a footage dump.
Interesting non the less however I find it hard to see this as a big cost savings when considering the necessary supporting network structure, why not use the third box as a server and connect an 8 disk array?
Excuse me if Im missing something…

[Daniel Fletcher]

I dont see a single disk, external enclosure with thunderbolt passthrough anywhere.
Ive yet to see an elegant (read: bus powered) “in-line” ssd thunderbolt solution.
If you know of an available product/supplier cough it up!
If not, damn it Bob, wire one up for us!!
256GB, bus powered, thunderbolt SSD with looping/passthrough…

Hell OWC ought to just add ssd storage to their Thunderbolt 2 Dock and rename it the Thunderbolt 2 Cache Dock!

[Daniel Fletcher]

possibly a preview file error try reconnecting your media and dumping your cache if you are comfortable re rendering

Just guessing thats never happend to me before

[Daniel Fletcher]

some pointers Ive learned on running CC on older systems

Run a quick (500+MB/s) RAID or SSD as scratch disk
transcode to ProRes for editorial
Keep playback at 1/2 or 1/4 resolution
upgrade to over 16GB of RAM
Run CC14 and try turing off hardware acceleration

best of luck

[Daniel Fletcher]

what was the end result / solution to this problem?
i have the same issue in a nearly identical setup.
sorry to dig up an old thread…

[Daniel Fletcher]

take a peek in your documents\adobe\adobe media encoder\”version number”\presets
?
thats where mine are but i can’t remember if i put them in there or not…