Does anyone have recommendations on the RAID configuration when running MongoDB on NVMe SSDs? Is the best practice still RAID10 like with HDDs and SATA SSDs?
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Using NVMe or traditional HDD drives do not override the purposes of RAID, which is providing better IO rates than a single drive can, replication for increased data durability and larger storage capacity per logical drive.
Of course, better performant hardware like NVMe drives fixes some use cases that were traditionally solved by RAID (mainly IO and bandwith rates), but under really demanding workloads, even a single NVMe drive may not be sufficient and RAIDs of NVMe drives may still apply.
For a noSQL workload like Mongo, and in fact for any data storage use case, RAIDs of SSD drives are critical to provide high availability and durability.