Can I raid 0 two different sized SSDs?

[Matsugen]

Two Samsung 850EVO's, one 250 GB the other 500 GB, would it be possible to create a raid 0 and also create an additional 250 GB partition from the remaining space on the 500 GB drive?

 

[junkeymonkey]

I would not advise it .. for rais you best have equal drives [matched ] and seeing you want to do a raid -0- for sure not - there's enough risk using matched drives for that to start with .. with raid -0- theres no redundancy or recovery if any thing fails [strictly performance ]

if you look up and read and understand raid -0- you may get a understanding of why

http://linustechtips.com/main/topic/289410-ssd-raid-0-stripe-size-differences-benchmarks-raid-0-mixing-different-drives-vs-same-drive-benchmarks/


main bad thing about raid -0- is that if it brakes its broken and you have to restart the array from scratch and all data is lost [no redundancy or recovery ]

so hook it up and see ?? just don't put anything you want to save on it with out keeping a good back up as you go

 

[USAFRet]

RAID 0 + SSD = just don't.
Read this all the way through: http://www.tomshardware.com/reviews/ssd-raid-benchmark,3485.html

RAID 0 + SSD of different sizes = REALLY don't.

250GB drive + 250GB partition (RAID 0) + 250GB partition = 750GB
250GB + 500GB = 750GB

You gain zero space, gain zero speed, and gain significant fail potential

 

[popatim]

While it can be done, with many onboard raid controllers you will not be able to use the un-raided space so you would only wind up with a 500gb raid0 which, unless you do heavy sequential work like video editing, would only slow real world performance down. Keep in mind that your risk of losing everything stored on the raid is double because of having two points of failure (the two drives) instead of just one. lose any drive in a raid0 and all data is lost with little chance of recovery so being very good with your backups is usually a must.

 

[iamacow]

Two Samsung 850EVO's, one 250 GB the other 500 GB, would it be possible to create a raid 0 and also create an additional 250 GB partition from the remaining space on the 500 GB drive?

Other than Raid-0 having a higher chance to lose everything since only drive needs to fail, I would do it for a few reasons.

1. Raid-0 will only be as big as the smallest drive (aka 250GB). so you are wasting half of the 500gb.
2. SSD raid in real-world performance is non-existent unless you are doing video work. Games, photos, programs will not load any faster.
3. The 3rd drive would increase the fail rate waaay over what is worth it.