Small RAID - what is enough read/write?

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John Waldorff

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Small RAID - what is enough read/write?

PostSun Dec 09, 2012 1:40 am

Hello,

I'm mostly working directly from SSD.
But I'm thinking to get a 8TB RAID as well.

What do you think about a small 2bay upgradable to 4bay RAID:
202,3 MB/Sek. READ
135,84 MB/Sek WRITE
Synology DS713

Is more needed?

Thanks.
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Margus Voll

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Re: Small RAID - what is enough read/write?

PostSun Dec 09, 2012 2:12 am

5 mb x frame rate gives you data rate you need for the dng.

also consider that you want to write also.

Synolog does not seem to be viable array. You need something specialized for video io
like Caldigit or similar.
Margus Voll, CSI

http://www.iconstudios.eu
margus (at) iconstudios.eu
IG: margusvoll
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CaptainHook

Blackmagic Design

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Re: Small RAID - what is enough read/write?

PostSun Dec 09, 2012 7:55 pm

The synology is a NAS and is more suitable for backup storage. We have a 15TB synology ds1512+ at home and it's just used for that - backing up projects.
**Any post by me prior to Aug 2014 was before i started working for Blackmagic**
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Marcel Beck

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Re: Small RAID - what is enough read/write?

PostSun Dec 09, 2012 9:32 pm

CaptainHook wrote:The synology is a NAS and is more suitable for backup storage. We have a 15TB synology ds1512+ at home and it's just used for that - backing up projects.


I use a DS412+ 8TB for my backup, works like a charm, for more video related I'd go down a thunderbolt route once it gets more affordable
Marcel Beck
Cinematographer & Producer
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Morten Carlsen

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Re: Small RAID - what is enough read/write?

PostSun Dec 09, 2012 11:16 pm

John Waldorff wrote:Hello,

I'm mostly working directly from SSD.
But I'm thinking to get a 8TB RAID as well.

What do you think about a small 2bay upgradable to 4bay RAID:
202,3 MB/Sek. READ
135,84 MB/Sek WRITE
Synology DS713

Is more needed?

Thanks.


I used to work on a RAID ZEROs... 8 Drives - fast as H+++... BUT - you need a serious backup plan...

Now, I just use fast SSDs... One single gives me R?W of 500MBs... And no need for wild backup plans. I can play back RAW image sequences off of the MBP Retina System drive. Amazing.

You want to use a software like SpeedGrade that is if you want to see everything in Real Time. Speedgrade outperforms Resolve so badly that its almost embarrassing... Resolve with BMCC RAW Files on a MBP Retina gives me 4-5 Fps of playback. Ridiculous.And with NO NODEs applied. In Speedgrade I get 24/25/30 Fps at full Resolution and several grading layers. Resolve seriously needs to do something about its performance. Great software if you dont want to watch in real-time what you're doing. But I like watching the results of my grading. And I cant do that in Resolve. Not even on a MacPro with 32GB of RAM and a dedicated CUDA NVIDA GTX 285 (recommended by BMD) -')


My advice is to go the SSD route. In many cases much faster and cheaper (when all things considered) than 99% of all raids.
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Peter J. DeCrescenzo

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Re: Small RAID - what is enough read/write?

PostSun Dec 09, 2012 11:27 pm

M. Carlsen wrote:I used to work on a RAID ZEROs... 8 Drives - fast as H+++... BUT - you need a serious backup plan...

Now, I just use fast SSDs... One single gives me R?W of 500MBs... And no need for wild backup plans. I can play back RAW image sequences off of the MBP Retina System drive. Amazing.

You want to use a software like SpeedGrade that is if you want to see everything in Real Time. Speedgrade outperforms Resolve so badly that its almost embarrassing... Resolve with BMCC RAW Files on a MBP Retina gives me 4-5 Fps of playback. Ridiculous.And with NO NODEs applied. In Speedgrade I get 24/25/30 Fps at full Resolution and several grading layers. Resolve seriously needs to do something about its performance. Great software if you dont want to watch in real-time what you're doing. But I like watching the results of my grading. And I cant do that in Resolve. Not even on a MacPro with 32GB of RAM and a dedicated CUDA NVIDA GTX 285 (recommended by BMD) -')

My advice is to go the SSD route. In many cases much faster and cheaper (when all things considered) than 99% of all raids.


Before you begin an edit session working from an SSD, what do you back it up to (since SSDs can fail, too)? And do you put an extra backup offsite, too? Curious to hear more about your workflow. Cheers.
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John Waldorff

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Re: Small RAID - what is enough read/write?

PostMon Dec 10, 2012 1:00 am

Alright, great insight. Originally I did not consider a NAS. Advertising brought me back to thinking about it, but it is for sure not a big gain if it is not fast enought to actually work on it directly.

To make sure that there is a backup I suppose just copying the entire material to 1 or better 2 harddrives when coming back from the shooting.
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Morten Carlsen

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Re: Small RAID - what is enough read/write?

PostMon Dec 10, 2012 2:57 am

Peter J. DeCrescenzo wrote:
Before you begin an edit session working from an SSD, what do you back it up to (since SSDs can fail, too)? And do you put an extra backup offsite, too? Curious to hear more about your workflow. Cheers.



Well in case of the BMCC i'll just unplug the SSD from the cam and plug it into my thunderbolt drive enclosure (Modified LaCie little Big Disk) and duplicate the drive content to a cheap spinning drive. Then I'll import the files (from the SSD) into SpeedGrade. Render out proxies and import them into FCPx. Do my cutting and export an EDL/XML and apply that to my SpeedGrade project and do my Grading....

Other workflow would be to apply a base-grade in SpeedGrade and render out Prores 4444 files and do the grading inside FCPx. If I complex projects with lots of compositing in FCPx I dont wanna bother bringing it back via XML but do the color grading (which is AWESOME) inside of FCPx...
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Ikaika Kimura

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Re: Small RAID - what is enough read/write?

PostFri Dec 14, 2012 8:41 pm

I use RAID 0 and have an external IcyDock on USB 2.0 for backup. I never edit off the IcyDock, it's way too slow. Every night at 2am, I have ChronoSync on my MacPro run and mirror the RAID for backup redundancy on cheap SATA drives. As I manipulate, add, delete files on the RAID, it gets mirrored as well. Works well for me for peace of mind.

http://www.icydock.com/goods.php?id=33
http://www.econtechnologies.com/pages/cs/chrono_overview.html

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