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When a RAID0 fails, can you still see all the file/folder names?
I'm considering making a RAID0 NAS but am unsure how failure occurs.
It's not the data I am concerned about losing but the reference to what data was lost (names). I have backups and can recover what might get lost.
Enigma
Posted 2017-03-16T02:56:29.040
Reputation: 3 181
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Probably not. Raid 0 stripes data across two drives - this increases speed (since you're roughly splitting disk accesses across two drives), and in a sense lets you use all of the capacity of the two disks as one volume, but you are completely hosed if one drive dies and pieces of your data are just gone.
Raid 0 isn't designed for resiliency, its designed for performance.
Journeyman Geek
Posted 2017-03-16T02:56:29.040
Reputation: 119 122
Okay. Wasn't sure if maybe the names/properties were indexed somewhere in RAID's. – Enigma – 2017-03-16T03:38:19.677
2No, they're not. A RAID volume presents an array of numbered blocks to the host OS, just like a non-RAID volume does. Neither has any clue about file systems. – Jamie Hanrahan – 2017-03-16T03:40:43.487
The best way to recover data when a RAID0 array fails is to restore from backups. Backups are particularly important when using RAID0. Recovery of data from RAID0 is difficult under the best of circumstances and should only be considered as an emergency measure – LMiller7 – 2017-03-16T20:13:49.683