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The first 512K of every file is written to some form of a single solid state storage (SSD or NVMe) storage target
Next, file data up to 64MB is written to a single HDD target
Next, file data up to 512MB is written to two HDD targets in 4 MB stripes
Next, file data up to 1 GB is written to four HDD targets in 4 MB stripes
Finally, any remaining data for a file is written to eight HDD targets in 4 MB stripes
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