由于SFP模块发生故障、发送到NFS挂载点的df和ls命令速度非常慢

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Specialty:: nas<a>性能</a><a>NFS</a><a>df挂起</a><a>2009013480</a>

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适用场景

ONTAP 9

问题描述

df -h ls 命令将挂起 10 秒或 7 分钟。
NFS 客户端正在报告 nfs: server <storage_ip> not responding, still trying message.
从 tcpdump 中，存储系统似乎正在延迟发送所有 NFS 响应数据包（即 V3 Write Reply, V3 GETATTR Reply, V3 FSSTAT Reply, READDIRPLUS Reply）。

示例：

2140 2021-12-21 16:30:31.305022 0.035760 Client_IP Storage_IP 852 2049 579664231 1393168162 579664363 210 132 NFS V3 FSSTAT Call (Reply In 3209), FH: 0xd16298da

3209 2021-12-21 16:30:33.404036 0.000018 Storage_IP Client_IP 2049 852 1393365090 580508043 1393372330 7306 7240 NFS V3 WRITE Reply (Call In 1842) Len: 4096 FILE_SYNCV3 WRITE Reply (Call In 1862) Len: 4096 FILE_SYNC ; V3 WRITE Reply (Call In 1859) Len: 8192 FILE_SYNC ; V3 WRITE Reply (Call In 1869) Len: 4096 FILE_SYNC ; V3 WRITE Reply (Call In 1896) Len: 4096 FILE_SYNC ; V3 WRITE Reply (Call In 1900) Len: 4096 FILE_SYNC ; V3 WRITE Reply (Call In 1931) Len: 16384 FILE_SYNC ; V3 WRITE Reply (Call In 1903) Len: 4096 FILE_SYNC ; V3 WRITE Reply (Call In 1906) Len: 4096 FILE_SYNC ; V3 WRITE Reply (Call In 1918) Len: 16384 FILE_SYNC ; V3 WRITE Reply (Call In 2004) Len: 65536 FILE_SYNC ; V3 WRITE Reply (Call In 2070) Len: 65536 FILE_SYNC ; V3 WRITE Reply (Call In 2099) Len: 20480 FILE_SYNC ; V3 FSSTAT Reply (Call In 2140) ; V3 WRITE Reply (Call In 2161) Len: 4096 FILE_SYNC