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Where to Place Preview/Exports & Media Cache

New Here ,
Dec 03, 2016 Dec 03, 2016

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I'm building a new PC for video editing and I am considering this arrangement for storage:

Samsung 960 PRO NVME M.2 512GB:  O/S and Programs

Samsung 850 PRO SATA 2TB:  Data, Media/Projects

Western Digital Red Pro 7200 HDD 8TB: Mass Storage and Previews/Exports

Western Digital Red Pro 7200 HDD 8TB: Backup and Media Cache

Or would I be better off with Previews/Exports and Media Cache placed on the 850 PRO along with Media/Projects?

During the Golden Days of HDD's, we usually split these off onto separate drives.  But with SSD's, I'm not so sure.   Can the SSD really handle all those tasks better?

Remaining components are 32GB RAM, I7-7700K CPU, Z270 Motherboard, GTX-1080 GPU, Enermax 750 Platinum PSU.

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Guide ,
Dec 03, 2016 Dec 03, 2016

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Yes, SSDs are really quite a bit better. You'll be best off to put all the cache, scratch, and previews on the 960 Pro boot drive which is by far the fastest drive. And I would think that 512GB would be enough to handle all these files in addition to your OS and programs.

You can pretty much send the exports wherever you'd like.

Regards,

Jim

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New Here ,
Dec 03, 2016 Dec 03, 2016

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OK, thanks.  If I can have only one PCI-e based SSD in my system, would it make more sense to use a smaller SATA drive for the O/S and programs exclusively and increase the size of the NVME SSD, as follows:

Samsung 850 PRO SATA 512GB:  O/S and Programs

Samsung 960 PRO NVME M.2 1TB:  Data, Media/Projects, Cache, Previews

Western Digital Red Pro 7200 HDD 8TB: Mass Storage and Exports

Western Digital Red Pro 7200 HDD 8TB: Backup

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Guide ,
Dec 03, 2016 Dec 03, 2016

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yes, exactly!

Jim

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New Here ,
Dec 03, 2016 Dec 03, 2016

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Is that because the O/S and programs are mostly read functions?

Also, another thread said to place media cache on the boot drive in a similar setup.  Does that make sense.

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Guide ,
Dec 03, 2016 Dec 03, 2016

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Not really; it's more due to the fact that once the OS and programs have been loaded, they are largely RAM (memory) resident and don't need to read or write to the disk any more. Of course there is still some disk activity (on OS/programs drive), but nothing like the disk I/O going on with the bulk of the Premiere Pro files (media, scratch, cache, renders, etc.).

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New Here ,
Dec 03, 2016 Dec 03, 2016

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Great information.  Really appreciate it.

Would it still be advisable to place the media cache on the O/S drive, like some people on this forum do?

Lastly, what is the difference between scratch and media cache?

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Guide ,
Dec 03, 2016 Dec 03, 2016

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M.2 and PCIe drives are about 3 to 4 times faster (or even more) than a fast single SSD. So in your case I suggested putting most the files on your M.2 drive.

Personally, I do put my cache/scratch files on my boot drive, but it's a PCIe SSD. My data drive is faster for total throughput (8x SATA SSD array), however my PCIe drive (and M.2 drives) has very little overhead and work well with multiple small files.

Here's a pretty good link for the full details of Premiere Pro file, including scratch and media:

Premiere Pro CC: Media Management Q&A | Larry Jordan

But really all you need to know is Premiere Pro creates and uses them for performance reasons and you can always delete them all and not loose anything that cannot be easily re-created. So, if you point them all to be stored in the same folder you know you can always get away with deleting them and you don't need worry about backing them up.

Regards,

Jim

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