4 ms·
What's your opinion on RAID6? Reasonable middle ground between cost and redundancy or added complexity with the same performance problems as RAID5?
by wongarsu 3y ago
What's your opinion on RAID6? Reasonable middle ground between cost and redundancy or added complexity with the same performance problems as RAID5?
- zokier 3y agoWith Ceph, and I imagine other similar solutions, you can skip RAID altogether and manage redundancy at higher level over plain disks. RAID makes sense if you specifically want to have conventional filesystem on top of it, but for object storage its not necessary.
- simonjgreen 3y agoYou're applying the same principles, just at the object level rather than the filesystem level. You still have to choose a redundancy pattern. But I do agree with you, it does make the problem significantly easier/different. ZFS and Ceph are marvelous creations.
- simonjgreen 3y agoRAID6 is passable for a low performance small scale bulk storage, but the performance hit is worse than RAID5 and the rebuild times are even longer.