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ZPOOL-PREFETCH(8)	     System Manager's Manual	       ZPOOL-PREFETCH(8)

NAME
     zpool-prefetch -- Prefetches pool metadata into ARC

SYNOPSIS
     zpool prefetch [-t type] pool

DESCRIPTION
     Massively	prefetch metadata of a specific type for the given pool into the
     ARC to reduce latency of some operations later.  If no type  is  specified,
     all types are prefetched.

     The following types are supported:

     brt  Prefetch  the  BRT  (block reference table).	This may improve perfor-
	  mance for block cloning  operations,	and  frees  for  earlier  cloned
	  blocks.

     ddt  Prefetch  the DDT (deduplication table).  This may improve performance
	  of writes when deduplication is enabled, and frees for  earlier  dedu-
	  plicated blocks.

FreeBSD ports 15.quarterly	February 14, 2024	       ZPOOL-PREFETCH(8)

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<https://man.freebsd.org/cgi/man.cgi?query=zpool-prefetch&sektion=8&manpath=FreeBSD+Ports+15.1.quarterly>

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