July 16, 20241 yr I have a ZFS NVMe cache of 2 drives, 1x WD_BLUE SN550 rated for 2,400MB/s read and 1x Crucial P3 1TB PCIe Gen3 3D NAND 2,500MB/s read. If I expand with a quicker SN770 for example or slower Intel P660 what will happen to overall pool read speed and when for example the 3D nand fills up, what about the write speed? (Assuming all in NVMe/PCIe 3.0 with x4 speeds on an okay 3600x CPU)
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