Software RAID 5 As A Backup Repository?

[merlin33]

Hello all,

Windows Server 2016 allows you to create a software RAID 5 within disk management, will this RAID be less effective or reliable than a hardware RAID done with a PERC? Why or why not?

Would there be any disadvantage to using a software RAID 5 created by Windows using ReFS 64K to store Veeam backups as opposed to a hardware RAID 5? Why or why not?

Sorry if this question is a little basic, I'm just trying to get a better understanding on data storage.

Thank you for your time.

[Regnor]

Parity StorageSpaces are rather slow compared to a hardware based parity RAID. I wouldn't recommend you to use them as a backup repository. Reliability will be almost equal but you won't be able to use any write caching.

[Gostev]

Mirror-accelerated parity in Storage Space Direct is actually quite great as far as performance goes > https://docs.microsoft.com/en-us/window ... ted-parity

[Regnor]

Mirror-accelerated parity in Storage Space Direct is actually quite great as far as performance goes > https://docs.microsoft.com/en-us/window ... ted-parity

Haven't heard of that before, sounds great. Thanks

[zadrian]

Mirror-accelerated parity in Storage Space Direct is actually quite great as far as performance goes > https://docs.microsoft.com/en-us/window ... ted-parity

This really looks like some ignorant programmer from Microsoft copied some PC "onboard" software RAID and merged it into MS Server 2016.
So many obvious loopholes....
1. using an already crappy OSe to manage low-level storage functions like redundancy and cache
2. Did you understand where the cache is stored ?
3. Any mention of hardware RAID adapters (if available or exist in server hardware)
4. Any Mention of RAID 5, RAID 6 or RAID 10 equivalent redundancies ?
5. There is no way to make SATA HDD perform better than SAS HDD or SAS HDD perform better than SSDs using these technologies (including changing RAID levels)
......
Anyway....Due to URE on large HDD, please avoid using RAID 5. If you need better write performance, do consider RAID 10 or RAID 6 if you need the storage.