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Crucial m550 128GB as ZIL/SLOG (the ZIL really does limit your performance)

I got my hands on an m550 128GB drive (for around $75 with the recent pre-Thanksgiving/pre-Christmas discounts).

Here are some comparisons between my old ZIL (the m500 128GB) and the new one:

ZIL Throughput (sustained) MB/s
none 195.6
m500 128GB 124.0
m550 128GB 265.9

Here are some snippets of zpool isotat output:


m500 128GB as ZIL

m550 128GB as ZIL

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