You can choose that during the configuration of your NAS.....When you say "it spreads the disk load over the available disks", does that mean the NAS turns three separate externals into one? No more will I have H Drive, G Drive, etc?..
No, you get error recovery if you combine all disks into one volume of a type, in case of a Synology, 'Hybrid RAID'. If one of your disks crashes you just have to put in a new one and your NAS will recover! In certain models they are even hot swappable, don't switch off your NAS, just pull out the failing disk and put in a new one. What else do you want, it is exellent.....
1. Run all disks as one with no recovery abilities.
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If you create a volume (that is what they call it) of one disk you don't have a fault tolerant system.
On the other hand if you make a volume of 2 or more disks in something like Hybrid Raid - as Synology calls it - you have a reasonable error recovery and speed
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In most cases chosing something like 'Synology Hybrid RAID' won't be bad.
No, you get error recovery if you combine all disks into one volume of a type.
I have to be careful now, because English is not my native language, and it looks like we don't understand each other.That's where I thought I would get recovery....or are recovery and fault tolerant two different things?
Also, the cheapest 2 bay NAS I see on amazon is around $37. 4 bay NAS's don't show up until $200+. Does it matter if I get one 4 bay or multiple 2 bay NAS's?
If a volume is configured out of 2 physical disks and the correct RAID type is used, the NAS stores recovery information on all disks which makes it possible for the NAS to recover from the loss of a disk. I thought this to be fault tolerant
If you configure volumes consisting out of only one disk you can't do that, that is clear, and you can't recover from a crash, you will have to reload a backup. I thought this to be not fault tolerant.
NAS 2 bay at $37 or 4 bay at $200+
In should not make a difference, but have you seen what functionality you get? I only know Synology and it can do much more than file sharing: multimedia streaming, cloud functions, webfunctions.....
Hope this explains it a bit more,
Henk
I sounds accurate!!
Added
Unstable, I would not call it unstable. My Synology NAS sends a monthly health report. If a disk is becoming bad, you see an error rate. When the error rate goes up replace the disk. This normally gives you the time you need.
That was a nice conversation!
Henk