Combining SSDs using RAID-0

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If I have 2 SSDs via SATA3, both reaching speeds of about 500MB/s, which is close to SATA3 limit, does it make sense to combine them using RAID0? I mean if the SATA3 chip can provide the 6Gb/s speed for all devices separately, there should be an improvement, right? Any experiences?

Vojtěch Melda Meluzín

Posted 2018-12-22T19:02:20.740

Reputation: 101

1What RAID hardware/software/system are you using for this? – music2myear – 2018-12-22T19:08:30.937

I'm using ASUS PRIME X299-DELUXE with i9 on Win 10. – Vojtěch Melda Meluzín – 2018-12-22T19:15:13.483

What size are the SSDs? – David Schwartz – 2018-12-22T19:51:27.277

1TB samsung & trancend – Vojtěch Melda Meluzín – 2018-12-23T11:37:23.987

Answers

2

does it make sense to combine them using RAID0?

No. The complexity of setting this up outweighs its usefulness.

If you want to achieve a major speed increase, upgrade to a motherboard with a new M.2 slot and put in an appropriate M.2 SSD.

A current - and not that expensive - Samsung M.2 SSD achieves a maximum reading speed of 3.4GB/s - far more that a RAID-0 of two SSDs with 500MB/s can achieve.

Concerning the problem of the TRIM-command and a SSD RAID-0 this SuperUser question may add further information.

zx485

Posted 2018-12-22T19:02:20.740

Reputation: 2 008

I actually have 2 M.2s here :), I just happen to have also 2 normal SSDs, one of them is redundant now, so I'm thinking if it would be useful somehow. – Vojtěch Melda Meluzín – 2018-12-22T19:14:36.647

2That's an unusual setup. I also own a X299 mobo :-) For usefulness, I would prefer data security over the possible speed of a RAID-0, unless you have special purposes. – zx485 – 2018-12-22T19:18:49.107

You are probably right :) – Vojtěch Melda Meluzín – 2018-12-22T19:30:18.697