Your best bet is probably a stripe of mirrors. i.e. a zpool made of many mirrors.

This way you have redundancy, and fast reads as well. You'll also enjoy pretty quick resilvering in the event of a disk failure as well.

For even faster reads, you can add dedicated L2ARC cache devices (folks typically use SSDs for very fast (15k RPM) SAS drives for this).


Francois wrote:
Hello list,

What would be the best zpool configuration for a cache/proxy server
(probably based on squid) ?

In other words with which zpool configuration I could expect best
reading performance ? (there'll be some writes too but much less).



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