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by cantrecallmypwd 416 days ago
More or less.

XFS or ext2 (or 3 or 4 wo journal), without LVM or mdraid.

There's no point to adding RAID at the hardware or OS level for object storage boxes when redundancy exists at the application level. A drive with too many errors will be marked "dead" and just spun down and ignored.

Metadata servers OTOH tend to be engineered to be much more reliable beasts.