Rainer Wirth
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I stick with Bob,
a Raid5 promise 4bay thunderbolt raid would give you more speed and enough redundancy together with your back-up routine – and it is not expensive.
cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems -
It’s good for everyone to read your story!
It’s good you’ve learned your lessoncheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems -
Hi Jeffrey,
how did it go?
cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems -
The problem is, that Margus want to built a SAS data connection.
SAS is much cheaper than FC or Thunderbolt.
With FC or thunderbolt you’ll get faster performance, but you need a bigger budget,cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems -
a very good enclosure is Promise J5000,
cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems -
Hi Margus,
excellent, from here we can start to work.
For a proper 4k workflow you need roundabout 800 MB/s raid speed.
If you want to go for a SAS connection you are on the edge, but it is possible with Raid5.
The connection card I recommend is an ATTO ExpressSAS® H1248.
This provides you with 4 external miniSAS links and enough speed, plus software and support through Atto.
My recommendation would be a FC connection Atto Celerity FC-162E.
With a FC solution you can work on Raid level 6 for more redundancy.
The enclosure for your raid:
A SAS enclosure with 4 mini SAS external connections.
Or a FC Raid enclosure with 2 external FC ports (16gb each).
You should use just enterprise HD’s 8-16 bay raid enclosures. Power supply and cooling over the external enclosure.
All HD’s must meet the tech specs of Atto and the enclosure manufacturer. The HD’s must be of the same kind (firmware number) and size.
There are numerous raid enclosures on the market, they must meet your specs and connect with the computer card.
I hope this helps,cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems -
Hi Margus,
let’s begin from scratch. What is the main job your new raid array should do for you?
Second: What platform (Mac or Windows) do you want to play?
Third: How much storage do you need for your projects now and in the near future?
Do you work mainly in HD or 4K?
How do you want to do your monitoring? (picture, sound, colour)
You have to define and set up your workflow!cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems -
Hi Margus,
Question 1: Your max. performance is 12mb/s, bandwidth 8x PCIX. You’ll get around real 600-800 Megabytes/s.
The difference between i8 and i16:
The i8 has 8 external mini SAS ports and supports just Raid level 5
The i16 has 16 external mini SAS ports and supports Rais level 5 and 6.
5 and 6 are the Raid levels, you are looking for.
To me the i16 is the better raid card.
But another question puzzels me: Do you want to connect 8 or 16 drives direct to the card, or do you have a cooled external box, where the raid drives do their job?
The SAS connection in the card is for data only and provides no power supply for your drives.
SAS or Sata is non-relevant for your data speed.
Look for support of your comuter system in the technical specs of the card you are going for.
Generally speaking: I would go for an external housed raid system, based on Fibre channel or thunderbolt instead of a software-based raid system, like the LSI.cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems -
Hi Singleton,
first of all: What is a mac 5,1?
How many free PCI slots has your computer and what is the bandwidth of the slots.
This is important for 4k or above, because you need a breakout card and a decent raid to get it at work.
Both require a min. bandwidth of 8x for each PCI slot.cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems -
Hi Ray,
at the moment no mac does Thunderbolt 3. I doubt that the iMac does it in the future. I think you need a mac Pro. Why do you need a mac book? Instead of going for a mac book and iMac Iwould go for a decent mac Pro.
If you run your Pegasus on Raid level 6, what you should you loose 2 bays for redundancy. So I would go for a 8 bay, because you need a lot of space for 4k projects.cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems