Date: Tue, 2 Jan 2018 10:40:24 -0800 From: pete wright <nomadlogic@gmail.com> To: freebsd-questions <questions@freebsd.org> Subject: zpool fragmentation Message-ID: <CAGBmCT6tjinhjQrzs08zVUoK6OzUB1HzovN=cOmAWOfNzrRPsA@mail.gmail.com>
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Hi there, I was wondering how others here on the list deal with zpool fragmentation. My general purpose laptop uses zroot, and I've noticed over time fragmentation of my pool has grown to %42: $ zpool list NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT zroot 230G 87.3G 143G - 42% 37% 1.00x ONLINE - $ I guess I have two questions: 1) is fragmentation generally bad, or just a fact of life for a system with lots of churn? 2) if it is bad, are there any coping mechanisms people use to reduce fragmentation? Cheers! -pete -- pete wright www.nycbug.org @nomadlogicLA
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