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> I thought RAID and SSD were a terrible combination Well there are different RAID settings. My product is an indexing engine (indexes Git repositories) and I

by sdesol 11y ago

> I thought RAID and SSD were a terrible combination Well there are different RAID settings. My product is an indexing engine (indexes Git repositories) and I've personally found RAID 0 reduces indexing time by about 30% compared to a single drive. I have a machine that has 4 SSDs running RAID 0 and I've found the performance gain after 3 SSDs is negligible. It seems like 3 SSDs running RAID 0 is the best combination given my very limited sampling size.

laurencerowe 11y ago
An SSD is implemented a little like a RAID array internally. Higher capacity SSDs have more flash chips and tend to be faster. So one would expect that 2 x 128GB drives in RAID 0 to perform similarly to a single 256GB drive.
- eropple 11y ago
  Wouldn't being able to offload to multiple SSD controllers potentially help too if that's the bottleneck?
  - rbanffy 11y ago
    It would - you'd have the aggregate bandwidth of the multiple controllers to use. Similarly, RAID-1 is better for random reads than RAID-0.
deleted 11y ago
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