RAID vs SSD

[Sasahara]

You won't get double the performance. You get up to double the transfer speed. Which in most circumstances you'll never actually use.

The seek times won't improve to any significant level on SSD raid, 0.1ms or better with one drive already limits any improvement to under 0.1 ms.

Raid 0 with 2 or more conventional drives improve seek times considerably over 1 which is one the main reasons for using it.

This has already been said many times on this thread, but some people need to be told many times before it will sink in.

Seek time is king, you already have the king with 1 SSD.

Also with reliability SSDs are probably no better in terms of normal use, but are way more physically robust. The problem is if they die it's normally totally failed and very hard if not impossible to retrieve data with out very expensive specialist help. Mechanical drives can give you a warning they are on there way out if the fault is with the storage media (platters).

 

[pandem0nium]

Double read and write speeds, that to me is double the performance. How noticeable that is to a user isn't the same thing.

It's subjective and dependent on the user's workload how much benefit there will be. Someone who edits videos would see much more of a benefit.

Don't knock it till you've tried it. It's the same sort of thing as fast ram and over 60hz screens, there will be naysayers and there will be those who swear by it.

 

[Sasahara]

Double read and write speeds, that to me is double the performance. How noticeable that is to a user isn't the same thing.

It's subjective and dependent on the user's workload how much benefit there will be. Someone who edits videos would see much more of a benefit.

Don't knock it till you've tried it. It's the same sort of thing as fast ram and over 60hz screens, there will be naysayers and there will be those who swear by it.

It's not subjective, it easily measurable. I have tired tested it and it's pointless for most people, including video editing which I do.

For most video editing it's better to have source and destination drives separate anyway, therefore you are getting the benefit of both drives anyway.

Only people using RAW or other uncompressed video should consider it.

1080p Uncompressed 10-bit @30 fps uses approximately 220 MB per second. 13 GB per minute of footage or 52 GB for 4K. You'd need a lot of space as well.
To process this level of video at double or more to hit the single SSD speed limit your PC would have to be a multi CPU monster.

People that require this level of performance would be better off using a PCI-E cards removing the bottleneck of Sata.

 

[Sin_Chase]

Double read and write speeds, that to me is double the performance. How noticeable that is to a user isn't the same thing.

It's subjective and dependent on the user's workload how much benefit there will be. Someone who edits videos would see much more of a benefit.

Don't knock it till you've tried it. It's the same sort of thing as fast ram and over 60hz screens, there will be naysayers and there will be those who swear by it.

That's like doubling the top speed limit of a car from 100MPH to 200MPH on a road you can never go faster than 100MPH on. Might sound good down the Pub - But it's a pointless endeavour.

Your examples are complete nonsese also.

Games can make use of greater than 60Hz screens and users can easily see a tangible benefit.
Fast RAM? Nobody can notice a difference outside of benchmarking or very specific applications. You get RAM fast enough not to be a bottleneck, anything more would never show a tangible noticeable benefit.

 

[Sin_Chase]

Double post

 

[Deleted member 138126]

You can answer your own question by reading what I already posted. But just to reiterate the point:

Pros
No tangible pros

Cons
Increased failure probability
Migration complexity
Rebuild complexity
Firmware upgrade complexity (Good luck updating firmware in RAID)

tl;dr - No upsides, ABSOLUTELY is downsides.

Spot on.

Perfect example is the recent Samsung firmware bug. If you had two of those puppies RAIDed, you would have to back everything up, break the RAID, format them individually, upgrade the firmware individually, re-create the RAID, restore all the data.

I have much better things to be doing on a Saturday afternoon than doing all that and risking all my data while I'm at it, all for the purely theoretical performance improvement. Not to be dismissive, but people that RAID SSDs are of a certain type, and it's mostly pointless to try and convince them otherwise. That said, variety is the spice of life, and is what makes the world a fun and interesting place, so... carry on fellas!!