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ZFS ARC の確認手順

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ZFS ARC の確認手順

① ARCの現在サイズと上限を確認

grep -E 'c_min|c_max|size' /proc/spl/kstat/zfs/arcstats

② 上限値を直接確認(バイト単位)

cat /sys/module/zfs/parameters/zfs_arc_max

③ 実際に使っているサイズを見やすく表示(GiB換算)

awk '/size/{printf "%s: %.2f GiB\n", $1, $3/1024/1024/1024}' /proc/spl/kstat/zfs/arcstats

ポイント

項目 意味
c_min ARCの最小サイズ
c_max ARCの最大サイズ(上限)
size 現在の使用量
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