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Will Raid 0 increase the chances of data loss?

MicroMarx

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Dec 17, 2014
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Hello, I was told that raid 0 (2x 1TB Samsung 840 evo) could potentially wipe all my data very easily, is this true? Are there any other raid configurations that can decrease the chances of data loss?

 
Solution
Hey there, MicroMarx!

Yes, RAID 0 has the highest failure rate out of all RAID configurations.
It's called striping and even though you get very high speed and use the full capacity of the storage, if one SSD/HDD fails it takes out the whole array.

The safest RAID configuration is RAID 1, it's called mirroring because it writes to two drives at the same time and the data is duplicated. It provides the highest reliability, because if one drive fails you can still use the other one until you replace it. Once a new drive is added, it starts rebuilding the array and again duplicates the contents from the working drive.
Though it won't increase the performance as much as RAID 0, it's definitely reliable. Keep in mind, that RAID systems...


I wouldn't say easily but if one drive fails, you lose everything. You also lose TRIM when SSD's are placed into a raid configuration.

For speed and data protection, add a third drive and set up an array in Raid 5.

http://www.thegeekstuff.com/2010/08/raid-levels-tutorial/
 
Hey there, MicroMarx!

Yes, RAID 0 has the highest failure rate out of all RAID configurations.
It's called striping and even though you get very high speed and use the full capacity of the storage, if one SSD/HDD fails it takes out the whole array.

The safest RAID configuration is RAID 1, it's called mirroring because it writes to two drives at the same time and the data is duplicated. It provides the highest reliability, because if one drive fails you can still use the other one until you replace it. Once a new drive is added, it starts rebuilding the array and again duplicates the contents from the working drive.
Though it won't increase the performance as much as RAID 0, it's definitely reliable. Keep in mind, that RAID systems are not backups, you still need to keep your data in multiple locations to avoid data loss.

Hope this helped. Let me know if you have any more questions.
SuperSoph_WD
 
Solution