[Neil Sadwelkar]

The time taken to write to LTO depends on the speed of the drive that the client provides. Sometimes they give us RAID drives with 300+ MB/sec read speeds. In which case a full LTO-7 takes under 8 hours to write and 5 hrs to verify.
With an 8-bay Areca or Promise, over Thunderbolt 2 could take even less, but that’s rarely how media is provided for LTO backup.

Sometimes media is Red raw where there are few but large files. This takes less time to write to LTO. Mostly its Arriraw so, millions of 7-10 MB files per drive. That takes a longer since the drive read speed is slower with file sequences. From VFX too, there are millions of OpenEXR files.

Often we get single LaCie or G-Tech drives, even sometimes LaCie rugged drives. In those cases, the write time goes up to 14 hours per LTO-7 since the drive speed is that much slower.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India

[Neil Sadwelkar]

For the purpose of calculation (and budgeting), I normally account for the ‘overhead’, particularly for file sequence type of data.

So, my numbers are
LTO-5 – 1.3 TB
LTO-6 – 2.2 TB
LTO-7 – 5.2 TB

This is from adding files/folders in 100 GB increments, and doing ‘How many tapes’ in Bru-PE till it goes from ‘1 LTO-x tapes’ to ‘2 LTO-x tapes’.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India

[Neil Sadwelkar]

I’ve deployed LTO drives in a variety of conditions in India. Here, ‘summer’ minimum is 35C (95F), and 48C (118F) is not uncommon. We work in air-conditioned vans or hotel rooms where the temperature is about 25C (77F).

And, we have a ‘monsoon’ when it rains for days on end, but the temperature is 30C (86F) and humidity is 100%.
Then too, we work out of air-conditioned vans or hotel rooms where the temperature is about 25C (77F) and humidity is kept low at about 40%.

Our ‘winter’ is rarely below 10C (50F). Humidity in the ‘winter’ drops to about 60%.

And we have loads of dust all year round. We’ve rarely (almost never) deployed LTO drives outdoors.

I’ve seen tape head errors after a long round of backups.

I normally have a thin muslin cloth draped on the front of the machine, from where air is sucked in. The cloth passes air but not dust. After a few days (sometimes hours) it has visible dust collected on it. The cloth is changed as often as needed.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India

[Neil Sadwelkar]

Jim,

You should definitely not delete the .gz files as they are needed by Bru PE.

Neofinder lets you import these gz files and have an archive browser which doesn’t need Bru PE to search and locate files.

If you’d rather work with the file inside the gz and parse it yourself, you could do a search for ‘,gz’ in the Bru PE folder so they all show up together, and then select all and copy them out these to another folder.

Then you can expand them one by one and use another utility like BBEdit to merge all these files into one file which you can import into a spreadsheet. But, in case some or all of your Bru archives have file sequences lile Arriraw, or DPX sequences, then the resulting text file and spreadsheet will be be huge and unwieldy.

Bru PE lists file sequences as each file. So, even a LTO-6 full or Alexa/Panasonic/Canon raw ends up in a huge text file.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India

[Neil Sadwelkar]

[Scott Witthaus] “And Oliver, didn’t you say that Avid and Discreet failed in their attempt to make the “all in one” system. So why do you think Black Magic can do any better?”

Avid DS, Quantel eQ/iQ, Discreet(Autodesk) Smoke, and Foundry Nuke Studio, examples of ‘all-in-one’ (AIO) systems but they different from DVR 15 because of price, and hardware independence.
At the price of Avid DS, eQ/iQ, Smoke, Nuke Studio, one has to be hugely committed financially, to the concept. Their ongoing costs were/are high too – maintenance/upgrade taxes.

And, more importantly one has to have a person/s who can effectively use the system and earn revenue on it. And you’ve got to be able to keep the gal/guy happy. If they quit, your business goes with them.

For a brief period in the 2003-5 timeframe, Shake with Tremor was trying to be this AIO (All-in One) dream system too. That went away before it came.

The way I think DVR 15 may work as an AIO is to be one system, but 4 heads.
One asst editor to set up project import, sync and organise stuff, one editor who edits, one (or more) VFX artists who can do the keying/comping/cleanups in Fusion, and one sound engineer to do the sound sweetening and mix.
All four can take turns working on the same project and same system with no media being sent in and out.

Or, because of the price, one can actually have four separate DVR 15 systems for these four individuals, and they can all work on the same project. Maybe even at the same time. I’ve not used collaborative project work in Resolve, but if that’s usable, then this is even better, the exact same project open in 4 places.
This is huge, and something never possible, (at least economically) with the previous AIO systems.

If there is a time crunch, all 4 systems can become Fusion systems, or all 4 can be grading systems, or sound post systems.

Another thing is that unlike the previous AIO attempts, Resolve is Mac/Win/Linux, so one can (potentially) have the same project open on multiple platforms.

Of course, the same is somewhat possible with Adobe CC as well, but at a much higher cost.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India

[Neil Sadwelkar]

Unless I missed it, no one here has mentioned DCP-o-Matic. Also free, also on Mac and Win.
I’ve used it to make many a DCP even for theatrical release. But trailers and shorts mostly. I have a friend who’s used it to make even encrypted DCPs for full length features for previews in cinemas.

I’ve used Open DCP too, but DCP-o-matic lets you interactively adjust frame size and aspect and crop media delivered with hard mattes, and rearrange sound track numbers. And other features like trim source, adjust sync between video-audio-subtitles.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India

[Neil Sadwelkar]

300 hrs of Arri 3.2k ProRes4444 amounts to 90TB like you’ve mentioned.
So won’t you need storage that’s more than that?
100TB as Bob has worked out, would be pretty close to full with 300 hrs of Arri ProRes444.
If the shoot exceeds 300 hrs, say 340 hrs, then even 100 TB won’t be sufficient.

If cost is a consideration, in place of a clone, you could consider an LTO-7 drive for longer term backup. And, tapes.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India

[Neil Sadwelkar]

Also, the Sonnet web site doesn’t seem to have the Sonnet Solo 10GigE adapter.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India

[Neil Sadwelkar]

Thanks Bob. Good to know.
Was the QNAP TVS-882ST3 populated with hard disks or SSDs. I’ve very curious about this product as a storage for on location use. Mainly for weight.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India

[Neil Sadwelkar]

If you get NeoFinder you can import Bru PE catalogs one by one. These are in the files with a ‘.gz’ extension in the folder /Library/Application Support/BRU PE/Catalogs/xxxxxxxxxx folder.

NeoFinder lets you browse and search the LTO contents like they were a local hard disk. What’s missing is the tape name in case you’ve set a tape name when making an archive.

You can then export this as a csv file and import that into a spreadsheet. If you need to total file sizes, you’ll need to add a formula to extract that. File sizes come out in a separate column as
10.5 MB (1,05,33,775 Bytes)
29.4 MB (2,93,50,736 Bytes)
and so on.

Also, in the trial I did with NeoFinder 6.9.8, there was no file creation date, or file modified date for any file.
So I’m not sure if its missing in the Bru archive (unlikely) or in the translation from Bru archive to NeoFinder.

———————————–
Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India