ZFS L2ARC checksum errors after compression

Lev Serebryakov lev at FreeBSD.org
Thu Nov 3 19:43:18 UTC 2016


On 29.10.2016 16:32, Andriy Gapon wrote:

 Looks like L2ARC is unusable now if your have compression enabled on
FSes. It shows 2x compression (ALLOC = 2xSIZE), and tons of checksum
errors. I simply don't have compressible enough data on my FSes! It is
mostly media files! Looks like this data is bogus.

> I think that a recent upstream change, compressed ARC support, reintroduced an a
> old problem that was fixed a while ago.

-- 
// Lev Serebryakov


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