Hi all, something I was wondering and thought someone on here may know the answer
I have a new build and it has 2 drives, one SSD (500GB) and one RAID0 Array (2x 1TB 7200RPM HDDs)
Which one is it better to store Unity Projects on? What’s more of a benefit, the write or read speed?
Thanks
Since you have both, I would defiantly recommend putting your projects on the ssd (and possibly store quick backups on the hhd… though not replacing a real backup/cvs)
The difference is pretty noticeable. With all the disk activity associated with using unity, it is a much snappier experience using ssd.
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Okay, thank you for that 
Use SSD for everything and then use the HD for backups. It is all about IOPS. A HD can manage about 100 IOPS. A good SSD can deliver 100,000 IOPS.
Could you inform me on what IOPS are?
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So essentially how quickly it can transfer data between the drive and memory?
What about a RAM Disk or Drive, if you have ample memory or can fit more ram on your system then you can set it aside as a RAM Disk.
Way faster than any HDD/SSD system and also handy for cache/temp files that you don’t want to wear out your SSD drive.
Ideally we would have an operation system that uses RAM / SSD / HDD and dynamically based on usage moves the files for optimal performance, with backup.
Ramdisk is prone to data loss. Just use SSD. SSD is the replacement for mechanical drives for daily work and use. Mechanical is a cheap way to get tonnes of backup space or longer term storage.
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I have 16GB installed but can get another 16GB need it be.
What is RAM Disk?
I think I’ll be using SSD, thanks for the advice
Good call. I use a 1TB SSD and it’s great. AFAIK Apple doesn’t even use mechanical drives any more. Times have changed.
I believe Apple does Fusion Drives now, where its essentially an SSD and HDD and the files are moved according to usage, you may be able to get HDDs in the Mac Pro if its still multi drive
Ah the fusion drive is purely a cost saving measure. It’s not actually very good really.
I was wondering how good it would actually be, I guess its all down to how effective and efficient the moving around of the files actually is
RAM disk just uses software to set aside an amount of RAM as a Disk Drive on the system. The software loads and saves the ramdisk image when you startup and shutdown.
So if your system crashes you can lose data.
In effect, you are trading system start-up time for amazing application launch speed.
It definitely won’t replace a real backup as the HDDs are in a RAID 0 configuration. A RAID 0 configuration gives increase read/write speeds but it also increases your chances of losing data because it brings additional points of failure.
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Yeah I was aware of that, I’ll probably be getting another HDD or another 2 to set up in the mirror RAID (cant remember which one) for backups
It’s RAID 1 for mirroring. Both together tends to be called 10 or 0+1. I’ve considered setting up something similar.
Ah okay, thank you
What is recommended as the size for a backup drive if backups will be automated relative to the size of the drive its backing up?