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CFDISK-1300:磁盘型号 X4014TCM5V15TNTE 高延迟

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问题描述

磁盘型号 X4014TCM5V15TNTE (Kioxia) 驱动器报告读写 IO 延迟大幅增加。在 ONTAP 从 9.12.1P11 升级到 9.14.1P12 后,延迟开始增加。

使用工具 statit 检查驱动器性能:

Cluster::> set diag
Cluster::*> run -node node1 -command statit -b
Wait for about 60 seconds
Cluster::*> run -node node1 -command statit -e

在输出中查找型号为 X4014TCM5V15TNTE 的磁盘并检查写入延迟:
disk        ut%  xfers  ureads--chain-usecs writes--chain-usecs cpreads-chain-usecs greads--chain-usecs gwrites-chain-usecs
/aggr-data/plex0/rg0:
<snip>
0n.9        94 7743.02  4644.50   2.19   789 1275.55   3.53  2905 1822.96   2.00   704   0.00   ....    .   0.00   ....    .
0n.16        15 7754.81  4656.91   2.20   44 1275.86   3.55   19 1822.03   1.99   56   0.00   ....    .   0.00   ....    .
0n.17        94 7751.88  4660.64   2.19   788 1273.52   3.56  2881 1817.72   2.00   707   0.00   ....    .   0.00   ....    .
0n.19        93 7763.13  4669.08   2.18   775 1270.86   3.54  2874 1823.19   1.99   697   0.00   ....    .   0.00   ....    .
0n.6        26 7743.62  4644.19   2.19   132 1276.99   3.55   66 1822.44   2.00   223   0.00   ....    .   0.00   ....    .
<snip>

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