Eric Hansen
Forum Replies Created
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I read somewhere (and of course I don’t remember where), that drive manufacturers are no longer taking the time to scan and map out bad blocks before shipping. This somewhat explains the linked recommendations from Seagate in that Apple Discussions Thread.
I try to use something like DiglloydTools “Fill Volume” on new drives before I send them out into the field. But of course, I never seem to get the time 🙂
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
This could work, but you’re forgetting to backup your SSD.
On my system, I have Time Machine backing up the boot SSD. I also do a daily clone of the SSD so I have something to boot from if the SSD fails (Carbon Copy Cloner). I have all 4 bays of my Mac Pro in a software RAID0 that’s 8TB. I then back this up daily to an external 4TB drive. Since it’s only 4TB, it forces me to keep the internal RAID less than half full, which keeps it fast. I then archive my projects to bare hard drives and LTO tapes (BRU PE). Multiple copies of everything. I use FileFinder at home and NeoFinder at work to search the bare drives and LTO tapes. They’re basically the same app, but NeoFinder allows the database to sit on a server and have multiple instances of the app on different computers searching the centralized database.
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
Rome, what codecs are you editing with that you need 700MB/s? The only time I need speeds that approach that are for 4k DPX. And in those cases it’s for grading, not for editing. And even then, it’s rare that I have a DPX source. Most of the 4k material is compressed such as R3D and XAVC (Sony).
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
I’ve never used that particular dock, but I have had issues when trying to run multiple drives over a single USB3 connection. A client gave me an 8 drive enclosure where each drive was its own volume. So 8 drives would appear on my desktop when connected. But it was unreliable. Not sure if it was individual drives spinning down, something with USB3 or something with the controller in the enclosure. But it was most reliable if i pulled each drive out of the enclosure (just an inch so they could still sit in there, but not be connected) and just access one drive at a time. This was on a 15″ rMBP
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
Alex, you’ve used 2.5″ drives extensively in the field and experienced a lower failure rate than 3.5″? I’m confused by some of your acronyms.
when i say “in the field”, i mean how Kannan is using them, while traveling, shooting, editing on the road. Not an external drive sitting on a desk or an internal drive in a data center. For that use, i imagine they’re no different than 3.5″
thanks
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
I have a bunch of 6TB and 8TB G-RAID TB drives and they’re great. averaging 300MB/s.
I personally don’t use 2.5″ drives in the field. I’ve heard anecdotally that they’re less resilient to bumps and bruises. It would be great to hear other’s opinions on this. Personally, I would go with the G-RAID because of this.
Also, the more free space you have, speeds stay high. If you fill the J4, it will slow down considerably. You may not need 8TB, but extra space helps because your data stays on the fast part of the platters.
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
no crossover cable needed on the internal ports either
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
hmm. I wonder if the Toshiba desktop drives have the short timeout setting that RAID controllers expect, or if CalDigit has their controller set to deal with desktop drive time outs.
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
Gautam, with your current setup, what speeds are you seeing for:
– FPS during render
– CPU use in Activity Monitor
– MB/s in Activity Monitoras i mentioned in your earlier post in the RAID forum, you need to find your current bottleneck because as Juan mentions, HD ProRes to HD ProRes is not that demanding.
question for Juan – is that much GPU power just being wasted with PCIe 2.0?
personally, i would wait for Resolve 10 before purchasing new GPUs. the BMD reps on the forums have been alluding to processing changes.
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
yes Mike, that has been my experience. if i move the rings or balls too slowly, Resolve registers no movement at all. Then if I go just slightly faster, Resolve will jump. Changing the sensitivity settings in Resolve doesn’t help. Increasing the sensitivity just makes the movements jump higher once they reach a high enough velocity to register.
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Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv