raid 0 how likely to fail?

[newjanson]

I have 2 hard drives in raid 0. I don't need the full storage but I would like it to be fast. I heard that raid 0 drives are often failing. Is it true? Approximately how long does it takes it to fail?

Thank you in advance!

[Guest]

I have 2 hard drives in raid 0. I don't need the full storage but I would like it to be fast. I heard that raid 0 drives are often failing. Is it true? Approximately how long does it takes it to fail?

Thank you in advance!

 

Raid 0 doesn't make the drives fail faster, the problem is that your whole array fails when just one HDD dies. Nobody can give you a specific time on when they'll fail, just be aware that any of the two drives failing will make you lose all your data.

[newjanson]

Raid 0 doesn't make the drives fail faster, the problem is that your whole array fails when just one HDD dies. Nobody can give you a specific time on when they'll fail, just be aware that any of the two drives failing will make you lose all your data.

Thank you <3

[linuxfan66]

Doesnt minor failures cause major issues in raid 0 or i did i misunderstand linus?

[shirokado]

Doesnt minor failures cause major issues in raid 0 or i did i misunderstand linus?

All raid 0 does is distribute the data between 2 drives, so both parts must be present for the data to be readable. Meaning, if 1 drive dies, all your data is gone. As the other guy said, raid 0 doesn't make drives fail faster, it just increases the risk of data loss because you have 2 points of failure rather than 1.

[Peter Vaughan Truslow]

I have 2 hard drives in raid 0. I don't need the full storage but I would like it to be fast. I heard that raid 0 drives are often failing. Is it true? Approximately how long does it takes it to fail?

Thank you in advance!

 

Raid 0 doesn't make the drives fail faster, the problem is that your whole array fails when just one HDD dies. Nobody can give you a specific time on when they'll fail, just be aware that any of the two drives failing will make you lose all your data.

I think you should be clear that it does mean that at any given moment the array is twice as likely to fail.

I'd estimate that with the average drive you can expect a 2 drive RAID 0 array to have 75% the life of a single drive, as most drives probably fall somewhere between 50% and 150% of the average life of that drive.

BUT: remember remember murphey's law: anything that can go wrong, will go wrong.

If you really want to RAID 0, you should use reputable drives unless you are backing up, and you SHOULD be backing up a RAID 0 array as one of these days, it will fail.

 

IMHO there is no reason for RAID 0 to exist anymore. if you need more speed(assuming you use SSDs) get a faster speed or use a faster interface like M.2, PCIe, or SATA express. if you ned more capacity, get bigger drives or get more drives and use them as seperate drives, and still back important data up. 

RAID 0 truly made sense in a time where the only option was mechanical drives and you needed something faster, but the drawback of reliability just scares me.

 

moral of my story: BYSU: Back Yo Shit Up (if you don't want to lose it)