Raid 5, Yay or Nay..

Si.

Si.

Si.

Soldato
Joined
22 Oct 2002
Posts
2,675
Location
Melbourne, Aus
I'm currently running RAID-5 on my Synology NAS without any problems, I've been running RAID-5 on servers for 20 years and luckily never had a RAID failure (Other than those caused by human error). However I'm about to upgrade from my 4 bay NAS to an 8 Bay one and I'm starting to think I should now go to Raid-6.

What are peoples thoughts? I know Raid 6 will give me 2 disk redundancy, but is it worth the extra loss in space over adding in an additional RAID 5 disk? There are always worries about a corrupt RAID volume, and as drives get larger this risk increases, but if I'm currently running monthly RAID scrubbing on the array I'm hopefully mitigating this issue.

Any comments welcome.
 
Slow internet unfortunately.. I'm edging towards Raid-6 anyway so might go with that.
 
Disks are 3tb.

Backups are ideal but I don't have the space anywhere.. None of the data is absolutely irreplaceable, but would be a royal pain to get back. Anything really important is also located on a local RAID 0 but that's nowhere near enough for everything.
 
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