February 14, 20251 yr Hey guys, did some google'ing searching the forums and what not. Not seeing alot of people using RAID 5 on cache pools, which makes sense, most people will burn there drive bays to the array and pack big drives, but i have some storage shelfs cabled up as DAS storage and access to lots of SSD\NVME drives. So, what's the latest on is there any downfalls to running raid 5 or 6 for a pool? Everything I find says run raid 1 or 10. makes we twitch, to say toss ten drives into a raid 10 pool and lose all that capacity. Does it take command line fun to replace a failed drive in a setup like that or can just stop the array swap it and keep on trucking? v7 any benefits there ?
February 14, 20251 yr Community Expert Many users running raidz pools, that's a good option for some use cases, btrfs raid5/6 is not recommended, raidz is equivalent to raid5, raidz2 to raid6, raidz3 can handle 3 failed devices.
February 14, 20251 yr Author being this is all just home lab fun and learning, i did think about doing the raidz pools to start to learn about them
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